Trident 78 User manual



BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
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Trident 78 Owners Manual 2
Table of Contents
Introduction/Specifications..................................3
Input Module...........................................................................4
Group Module........................................................................10
Master...................................................................14
Rear Connections & Power Supply...............................17
DSub-25 Pin Out..................................................................18
Warranty...................................................................19
Signal Flow Diagrams........................................................20
Warning & Policies..............................................................23
Recall Sheets........................................................................24
Register your Trident 78 at
tridentaudiodevelopments.com/product-registration

Trident 78 Owners Manual3
Trident 78 Introduction & Specifications
The Series 78 all analog consoles are all Trident through and through. The 78’s are Split/lnline consoles with
individual channels in 4-way panels. Using an 8 subgroup configuration and incorporating 6 Aux sends, its
routing options are vast and simple to use. Connections are fast and easy with DB-25’s throughout the board
and XLR’s for Master and Main outputs. With the 80B EQ at its core, including selectable channel inserts and
discrete preamps driving the inputs, the Series 78 consoles oer a wide array of summing and mixing options.
The uncompromised sonic quality and compact footprint of the 78’s are able to meet any demand.
Trident 78 Specifications
Input Impedance
Microphone: >2K0 electronically balanced
Line: >10K0 electronically balanced
Output Impedance
Left/Right, Monitor O/P, Group & Auxes <600 (Outsmarts® Drive)
All other Outputs <1000
Frequency Response
Mic Input to Mix Output <+0, -0.3dB 20Hz to 80KHz
@ 6-40 dB gain.
Line Input to Mix Output <0, -0.3dB 20Hz to 60KHz
@ 0 dB gain.
Distortion/Noise
(T.H.D +Noise) at +15dBu Output
Mic XLR Input to any Output (-20dBu input) <0.003%
Line Input to any Output <0.003%
Monitor/Tape Return Input to any Output <0.003%
Noise
Mic EIN (20-20KHz, 1500 source, 60dB gain) <-128.5 dBu
Residual Bus Noise (Output fader at min) <-95 dBu
Stereo Bus Noise (40 inputs continually assigned) <-83 dBu
(24 Input Mon/Tape Returns, 8 EFX Returns
and 8 Master Tape Returns)
Bus Noise (24 inputs routed equiv. to 64 Inputs) <-77 dBu
Crosstalk
Adjacent Channel: <-100dB (@20KHz)
<-110dB (@1KHz)
Channel Fader Mute <-95dB (20Hz to 20KHz)
Monitor/Tape Return Mute <-85dB (20Hz to 20KHz)
Mix/Bus Assign <-80dB (20Hz to 20KHz)
Aux to Aux <-80dB (20Hz to 20KHz)
Maximum Input
Mic (XLR) Input (at min gain) +17dBu
Line (at min gain) +42dBu Channel Insert Return
+22dBu All Output Insert Returns
+28dBu
Maximum Output
Mix, Group, Aux, Monitor Outputs +26.5dBu (Into 6000) Insert Send,
Alt Outputs +22dBu (Into 2K0)
Phase
Mic Input to Direct Out +17
º
to -8
º
20Hz to 20Khz
Mic In to Mix Output +25
º
to -17
º
20Hz to 20Khz
Line In to Mix Output +25
º
to -20
º
20Hz to 20Khz
Monitor/Tape Return to Mix Output +15
º
to -20
º
20Hz to 20Khz
Trident 78 Dimensions
Width Depth Height
8 Channel: 23.37”(59.359cm) 31.199” (79.245cm) 12.23” (31.06cm)
16 Channel: 33.37” (84.759cm) 31.199” (79.245cm) 12.23” (31.06cm)
24 Channel: 43.37” (110.159cm) 31.199” (79.245cm) 12.23” (31.06cm)
32 Channel: 53.37” (135.559cm) 31.199” (79.245cm) 12.23” (31.06cm)
10º
13.481
36.679
1.466
10.789
4.716
10º
3.043”
7.729cm
3.100”
7.874cm
3.086”
7.838cm 31.199”
79.245cm
12.230”
31.06cm
Module width
Input Top: 4.980” (12.649cm)
Master Top: 1.230” (3.124cm)
Group Top: 4.980” (12.649cm)

Trident 78 Owners Manual 4
Trident 78 Introduction & Specifications Trident 78 The Input Module
Trident 78 Specifications
The TRIDENT 78 Input module, just like it’s larger sibling the TRIDENT
88, is also a very flexible channel that can be used for recording, mixing
and monitoring multi-track recordings. The module comprises 4 equal
channels housed in a single metal front panel allowing it to be easily
serviced.
The input is designed to accept both mic level and line level signals.
It provides the user with the state of the art fully discrete Class A
design microphone preamp. A four band Trident EQ is at the core of
this console comprising fixed high/low shelving and variable mids.
Monitor Inputs on every channel with the ability to swap the full EQ
from the Input path to the Monitor path.
Access to the channel path is available through the means of a
switchable post Mic preamp and post equalizer point allowing the
user to insert an eects device via the standard channel insert and
to switch it in and out via a top panel switch.
Six Auxiliary sends are provided, four mono and one stereo, each
can be switched pre or post the channel fader. Aux 5/6 can also be
selected between the channel and monitor path, greatly adding to
the flexibility of the module.
Each module incorporates a monitor section which is used to
monitor a replay channel from a multi-track recording device. This
is in eect a separate signal path which ultimately feeds the master
Left/Right outputs. By making the channel EQ and Auxiliary sends
5/6 to this path , this becomes an extremely versatile feature of
the console. When monitoring the output of a multi-track recording
device, it is possible to create a monitor mix with equalisation and
reverb eects completely independently from the channel. These
eects would also remain when the recording is played back thru
the same monitor section.
When the module is used for mixing purposes the monitor section
functions as an additional line input return to the main Left/Right
mix, this input has access to a stereo pair of auxiliary sends. This
eectively doubles the number of inputs per input module that
are available on mix down mode. This with additional inputs on
the master section greatly increases the inputs available, even on
the smallest console.
The input channel is provided with a switchable non destructive
mono pre fader listen (PFL) and stereo after fader listen (AFL)
SOLO system. It is possible then to hear the selected signal in
isolation (or mixed with other “soloed” sources) separately in the
main monitors, without eecting the main Left/Right mix.
The following gives a brief description of the controls on the Input
module.

Trident 78 Owners Manual5
Trident 78 Input Channel Group Assignment
1-2 Group Assignment
Assigns the Channel post-fader
signal to the Group 1 and 2 mix
buses through the Channel Pan
Control. With the Channel Pan
control in mid position, the signal
will be fed to Group 1 and 2 in
equal amounts. If the Channel
Pan Control is positioned fully
anti-clockwise (left) the channel
signal will only feed Group 1 and
when positioned fully clockwise
(right), the signal will only feed
Group 2.
5-6 Group Assignment
Assigns the Channel post-fader
signal to Group 5 and 6 mix buses
through the Channel Pan Control.
Operation is the same as the 1-2
Group assignment.
L-R Mix
Assigns the Channel post-fader
signal to the Left and Right mix
buses through the Channel Pan
Control. Operation is the same as
the 1-2 Group assignment.
Sometimes referenced as the Main
mix or Remix bus assignment. In
a multi-track studio environment,
this L-R Mix assignment and the
Channel Monitor Input allow the
user to have two separate external
inputs (Channel Mic/Line and
Monitor return) that can be sent
to the Left and Right mix busses,
eectively doubling your inputs
on mixdown (Remix)
3-4 Group Assignment
Assigns the Channel post-fader
signal to Group 3 and 4 mix buses
through the Channel Pan Control.
Operation is the same as the 1-2
Group assignment.
7-8 Group Assignment
Assigns the Channel post-fader
signal to Group 7 and 8 mix buses
through the Channel Pan Control.
Operation is the same as the 1-2
Group assignment.

Trident 78 Owners Manual 6
Trident 78 Input Channel Group Assignment Trident 78 Input Channel Mic/Line Options
+48V
When depressed , provides +48
Volt phantom power to the bal-
anced MIC inputs on the associ-
ated pins on the DSUB connec-
tor. Phantom power is required
for operation of many condenser
microphones. See your micro-
phone instructions to see if phan-
tom power is required or is to
be defeated (some - though few
– microphones require phantom
power NOT to be activated or
they may be damaged).
Line
Selects between the Channel Mic
preamp signal (UP) or the signal
appearing on the DSUB (Down).
POL
When depressed, reverses the
electrical input polarity of any
microphone or line level input
signal selected as the channel
source. Use of this control may
alter the sound quality of a in-
put relative to other channels
when multiple microphones are
picking up the same sound.
INPUT GAIN
This control adjusts the amount
of gain of the signal connected
to the associated MIC input on
the DSUB connector. For low
impedance balanced microphone
plugged into the Channel the
gain varies from +5dB min to
approximately +60dB. With the
Line switch depressed, this then
controls the gain of the signal
appearing on the associated
line inputs of the DSUB con-
nector, this gain varies between
-20dB and +35dB.
CHAN MTR
This button selects the signal that is
fed to the relevant channel meter sit-
uated on the meter bridge. In the up
position the Channel Direct Output
feed is displayed.
[The Channel Direct Output can be
user defined by a selectable option
on the Input module, it can be selected
either Channel post fader or Channel
Insert Return (signal appearing on as-
sociated Channel Insert Return.
When this button is depressed the
channel meter is fed from the signal
on the associated Channel MONITOR
Input.
In a multi-track studio environment
where the Channel Direct Output is
fed to the recording device and the
output of this device is connected to
the MONITOR I/P, it is possible to see
on the Channel meter what is sent to
or received from the recording device.
I/P REV
The Input Reverse switch when de-
pressed flips the Line Input signal and
the Monitor Input signals. In eect
this switch determines the Line input
source that is available to the channel.
Combining this with the Line Switch
above allows the user to source the
channel signal from the associated
channel Monitor Return pins of the
DSUB connector and to use the full
channel strip resources for the Monitor
return signal. Alternatively depressing
this switch selects the associated Line
Input source for the channel Monitor
section.

Trident 78 Owners Manual7
Trident 78 Input Channel The Equaliser
HIGH Frequency
Section – Shelving
Adjusts the high frequency shelving
EQ response. The Level control ad-
justs the cut/boost between +/- 15dB
of the selected “knee” frequency,
this frequency is selectable between
8KHz or 12KHz. The centre “0” posi-
tion of the Level control has a detent
to indicate that it is having no eect
on the associated channel signal. Cut
or boost of the high frequency level
control is usually used for minor tonal
adjustments.
LOW – MID
Frequency Section
Adjusts the low-mid frequency EQ
response. The Frequency control
selects the centre frequency of the
filter (between 100Hz and 1.5kHz)
and the Level control adjusts the cut/
boost between +/- 15dB. The centre
“0” position of the Level control has
a detent to indicate that it is having
no eect on this frequency band. The
bandwidth of this filter is approxi-
mately one octave. The high-mid fre-
quency controls are used for minor
tonal adjustment or repair of a specif-
ic band of frequencies.
LOW Frequency
Section – Shelving
Adjusts the low frequency shelv-
ing EQ response. The Level con-
trol adjusts the cut/boost between
+/- 15dB of the selected “knee” fre-
quency, this frequency is selectable
between 60Hz or 120Hz. The centre
“0” position of the Level control has
a detent to indicate that it is having
no eect on the associated channel
signal. Cut or boost of the low fre-
quency level control is usually used
for minor tonal adjustments.
HIGH – MID
Frequency Section
Adjusts the high-mid frequency EQ
response. The Frequency control
selects the centre frequency of the
filter (between 1KHz and 15kHz) and
the Level control adjusts the cut/
boost between +/- 15dB. The centre
“0” position of the Level control has
a detent to indicate that it is having
no eect on this frequency band. The
bandwidth of this filter is approxi-
mately one octave. The high-mid fre-
quency controls are used for minor
tonal adjustment or repair of a specif-
ic band of frequencies.
INSERT ON
When depressed, this switch places the
rear panel channel insert path to the
Insert Send and back from the Insert
Return in line with the signal path. This
insert point by default is after the chan-
nel EQ. By routing the signal through
this connector, the insert may be used
for applications such as an eect that
can be switched in/out. In the event the
user wants to patch in his/her favourite
external EQ, it can be connected with
its input fed from the Insert Send and
its output feeding the Insert Return,
this path being activated with this
switch, it could be used in conjunction
with/without the Trident EQ.
Channel Equaliser
A four band Trident EQ with overlapping
ranges is provided with a switchable
high pass filter. The HIGH and LOW sections
of the equaliser have a shelving response
(switchable between two frequencies) and the
mids have a peaking (bell) response.
HPF
When selected inserts a high-pass (or
Low- Cut) filter with a corner frequen-
cy 50Hz and a roll o rate of 18dB per
octave into the signal path. This con-
trol is used to remove unwanted sig-
nal content below 50Hz. The result is
usually improved signal quality of the
associated input signal while decreas-
ing the low frequency amplification
demand of the audio systems amplifier
and speaker combination. Mainly for
use with microphones, this helps re-
move low frequency rumble and han-
dling noise.
EQ IN
This switch inserts the 4-band EQ
and High Pass Filter into the channel/
monitor (see EQ TO MON switch de-
scription below) signal path. When not
in use, it is suggested that the EQ be
kept in the OUT position for best phase
performance.

Trident 78 Owners Manual 8
Trident 78 Input Channel The Equaliser Trident 78 Input Channel Aux Sends
AUX 2 Level Control
Adjusts the mix level of Channel
into the Aux 2 bus.
AUX 3 Level Control
Adjusts the mix level of Channel
into the Aux 3 bus.
AUX 4 Level Control
Adjusts the mix level of Channel
into the Aux 4 bus.
AUX 5-6 PAN Control
Adjusts the balance of the chan-
nel signal being fed to Aux 5
bus (CCW) and Aux 6 bus (CW).
In the centre (=) position equal
signal level is sent to both Aux 5
and Aux 6 buses.
AUX 5-6 Level Control
Adjusts the stereo mix level of
Channel into the Aux 5 and Aux
6 buses.
AUX 2 Pre Switch
This switch determines the signal source
for Aux 2 bus, between Post (Up) or Pre
(Down) Channel fader.
AUX 3 Pre Switch
This switch determines the signal source
for Aux 3 bus, between Post (Up) or Pre
(Down) Channel fader.
AUX 4 Pre Switch
This switch determines the signal source
for Aux 4 bus, between Post (Up) or Pre
(Down) Channel fader.
AUX 5-6 Pre Switch
This switch determines the signal source
for Aux 5 and Aux 6 buses, between
Post (Up) or Pre (Down) channel fader.
AUX 5-6 To Mon
When depressed selects the channel
monitor input as the source to the Aux
5 - 6 Level control. In the up position
sources the channel signal.
AUX 1 Level Control
Adjusts the mix level of Channel
into the Aux 1 bus.
AUX 1 Pre Switch
This switch determines the signal source
for Aux 1 bus, between Post (Up) or Pre
(Down) Channel fader.

Trident 78 Owners Manual9
Trident 78 Input Channel Monitor Section
MON PAN
(Monitor Pan) Control
This control blends the post moni-
tor level signal between the Left and
Right buses. When at the centre, de-
tented position, both Left and Right
buses are fed equal amounts of signal
(each down by 3dB).
MONITOR LEVEL Control
Adjusts the monitor signal level to
the Left/Right bus.
MONITOR MUTE
When pressed will Mute the monitor
signal to the Left/Right bus. It is rec-
ommended when the monitor section
is not being used that it be muted.
AFL/PFL Select
Selects the channel source feed that
will be fed to solo bus when the Chan-
nel SOLO is pressed. UP - solo system
is fed from the channel post fader/post
pan pot point and is a stereo signal
that follows the pan pot. This allows
the user to monitor the channel in the
solo system and to see its contribution
to the mix. Down - solo system is fed
from the channel pre fader point and is
a mono source. This allows the user to
monitor the signal in the solo system
before the channel fader/mute, allow-
ing the user to check the signal in the
channel without being routed to any
output buses.
EQ to MON
Assigns the 4 band channel EQ to the
Monitor Section, removing it from the
channel path.
The Monitor section of
the channel module allows the
user to feed the signal on the
associated Monitor Return pins
of the DSUB connector to
the Left and Right buses with
level pan and if selected
with EQ control.
Channel Signal Indicators
+10 – Indicates RED when the chan-
nel signal level has reached +14dBu
(+10 VU) -20 – Indicates GREEN
when the channel signal level has
reached -16dBu (-20 VU) The chan-
nel indicator signal source can be se-
lected pre or post the channel fader
through an option available on the
input module circuit board. (Note:
Signal headroom available on the in-
put module is +22dBu and when the
+10 indicator illuminates the signal
level is approaching 6 to 8 dB before
clipping when just flashing red with
signal peaks). These are extremely
useful features and provide a con-
stant indication that a signal is pres-
ent in the module (green LED) and
that the signal peak is being reached
(red LED).
Channel PAN Control
This control blends the channel post-
fader/post mute signal between any of
the assigned bus pairs (L-R Mix, Group
1-2, Group 3-4, Group 5-6 and Group
7-8) located at the top of the module.
When at the centre, detented position,
both sides are fed equal amounts of
signal (each down by 3dB).
SOLO (Channel)
When pressed, routes the channel AFL
or PFL (see AFL/PFL Select above)
signal to the Solo bus. Additionally this
switches the Main Monitor Output (nor-
mally fed the Left/Right Mix) to source
the signal from the AFL/PFL Master
Level in the Master section as well as
to trigger LED indicators in the Master
section and Meter-Bridge stating a solo
has been pressed.
MUTE (Channel)
When pressed will mute the assigned
outputs of the channel (Group 1 - 8, L-R
Mix and all post Aux sends). The Mute
does not aect the channel’s solo PFL
feed, but WILL aect the channel me-
tering in the Meter Bridge, the Direct
Output of the channel (if selected as
post fader by option on module) and
the channel’s solo AFL feed (which is
post fader and post this mute).

Trident 78 Owners Manual 10
Trident 78 Input Channel Monitor Section Trident 78 The Group Section
The Group section of the console greatly enhances the flexibility of
the TRIDENT 78 console and provides a number of dierent functions.
There are 8 Group modules provided on the console, these are
divided into two sets of 4 Groups in separate panels and each
Group strip controlling the associated group mix bus outputs. The
groups can be used as audio subgroups for combining and pro-
cessing a collection of input channels. Each group bus has its own
balanced Insert Send/Return and Outputs that feed the associat-
ed DSUB connector on the rear Master Connector panel.
The Group module also provides a method of monitoring and
panning the group output on the control room speakers. By using
these controls it is possible to build up a monitor mix of the recorded
tracks and any that are about to be recorded. To enhance this
monitor facility Auxiliary sends (3 to 6) are available making it
possible to send a headphone mix from the groups together with
reverb and eects and since all Auxiliary sends are switchable to
Pre the monitor level control, they can be used to create a separate
auxiliary mix independent of the monitor level.
Individual monitor source switches (MONITOR RETURN) make it
possible to select either the group output or the associated balanced
line (Group Monitor Input) into the monitoring system. The bargraph
metering and Auxiliary sends follow this switch so that they automatically
switch according to the position of the MONITOR RETURN switch.
Note: the bargraph meters additionally can be assigned to monitor
the console Auxiliary outputs with the AUX to MTR control allowing
the user to check the associated number Auxiliary output level if needed.
Each of the 8 Group channels is also provided with a SOLO push-
button. This makes it possible to listen to the signal on any select-
ed Group in isolation and in stereo through the consoles SOLO
system. Since the SOLO function is post the Group MONITOR
LEVEL control, this makes it possible to solo a number of Group
channels and create a balanced mix of the soloed signals.
A separate facility on each Group channel is the inclusion of a
stereo Eects Return Section. Individual inputs are provided on
the DSUB located on Master Connector panel and are wired in
stereo and these feed the Eects Return section on the associated
Group channel. This adds the ability to send a signal (from the EFX
Return Inputs) with level and pan control to the master Left/Right
mix. Solo monitoring is provided on the EFX Inputs that provide a
post Level post pan feed to the solo system.
The following gives a brief description of the controls on the
Group module.

BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
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Trident 78 Owners Manual11
Trident 78 Group Monitor Section
BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
P
R
E
P
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E
P
R
E
P
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E
P
R
E
P
R
E
P
R
E
P
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E
P
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E
P
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E
P
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E
P
R
E
12-Segment
Bargraph Meter
Displays one of 3 sources as deter-
mined by the switches below (MON
SOURCE and AUX TO MTR). The me-
ter is a peak responding meter with
a fast attack and slower release. It is
very useful when used with complex
dynamic waveforms and able to dis-
play sharp transient responses and
greatly assist the engineer when it
comes to avoiding distortion during
recording. MON SOURCE LED
When this LED is illuminated, the
associated Group meter is being fed
either the Group Output signal or the
Group Monitor Input signal as de-
termined by the MONITOR RETURN
switch located at the bottom of the
channel strip.
AUX SOLO
Assigns the post Aux Master Level sig-
nal to the Solo system for display on
the Master meters and into the mon-
itor/headphone systems. This signal
feed to the solo system in mono.
NOTE: Since there are only Six Auxil-
iary sends on this console, this control
is not available on Group strip 7 and 8.
AUX (X) SWITCH
Pressing this switch assigns the as-
sociated Aux Output (post the Aux
Master Level on the master module)
to the bargraph meter above. This al-
lows the user to check Auxiliary out-
puts signal levels from the console on
the meter. Note: When this switch is
pressed the Auxiliary signal sourced
to the bargraph meter overrides any
other signal to the bargraph select-
ed by the MONITOR RETURN switch
as described by the MON SOURCE
LED above. Additionally pressing
this switch will switch OFF the MON
SOURCE LED above to indicate the
bargraph meter is only being fed the
associated AUX level.
NOTE: Since there are only Six Auxil-
iary sends on this console, this control
is not available on Group strip 7 and
8. And the signals to the bargraph
meters are always following the MON-
ITOR RETURN switch on those two
group channel strips.
AUX MASTER LEVEL
This control adjusts the Aux 1 bus mix
level that appears on the associated
Aux Output pins of the DSUB on the
rear panel.
NOTE: Since there are only Six Auxil-
iary sends on this console, this control
is not available on Group strip 7 and 8.
GROUP INSERT ON
When depressed, this switch places
the rear panel Group insert path to the
Insert Send and back from the Insert
Return in line with the signal path. This
insert is point directly after the Group
mix stage and before the Group Fader
and allows the user to connect an ex-
ternal device in series with the Group
signal and to be able to switch it in/
out via the front panel.

BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
P
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E
P
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E
P
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E
P
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E
P
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E
P
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P
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Trident 78 Owners Manual 12
Trident 78 Group Monitor Section Trident 78 Group EFX RETURN & Monitor Aux Sends
BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
P
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E
P
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E
P
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E
P
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P
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E
P
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P
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P
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EFX RTN PAN Control
This control blends the EFX post-lev-
el/post mute signal between the Left
and Right buses. When at the centre,
detented position, both sides are fed
equal amounts of signal (each down
by 3dB).
EFX LEVEL Control
Adjusts the Eects Return signal level
to the Left/Right bus. EFX RTN MUTE
When pressed will Mute the Eects
Return signal to the Left/Right bus. It
is recommended when the EFX RTN
section is not being used that it be
muted.
AUX 3 Pre Switch
This switch determines the signal
source for Aux 3 bus, between Post
(Up) or Pre (Down) Monitor level.
AUX 4 Pre Switch
This switch determines the signal
source for Aux 4 bus, between Post
(Up) or Pre (Down) Monitor level.
AUX 5-6 Pre Switch
This switch determines the signal
source for Aux 5 and Aux 6 buses,
between Post (Up) or Pre (Down)
Monitor Level.
AUX 3 Level Control
Adjusts the mix level of Monitor Input
into the Aux 3 bus.
AUX 4 Level Control
Adjusts the mix level of Monitor Input
into the Aux 4 bus.
AUX 5-6 PAN Control
Adjusts the balance of the Monitor
signal being fed to Aux 5 bus (CCW)
and Aux 6 bus (CW). In the centre
(=) position equal signal level is sent
to both Aux 5 and Aux 6 buses.
AUX 5-6 Level Control
Adjusts the mix level of Monitor Input
into the Aux 5 and Aux 6 buses.

Trident 78 Owners Manual13
Trident 78 Group Monitor Aux Sends
BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
P
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P
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P
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P
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P
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P
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P
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P
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P
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E
P
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P
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E
P
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E
BALANCE
=
LEVEL
LR
MUTE
AUX 1
MASTER
AUX 1
EFX
RETURN 1
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
1
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
SOLO
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
2
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
3
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
LEVEL
MUTE
0
+3
+6
+9
+12
+15
-3
-6
-9
-12
-15
-20
4
SOLO
MUTE
AUX 5/6
PAN
56
LEVEL
AUX 4
MON LEVEL
=
MON PAN
MONITOR
RETURN
5
0
5
10
15
20
25
30
40
====
AUX 3 AUX 3 AUX 3 AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 2
MONITOR
SOURCE
METER SOURCE
AUX 3
MONITOR
SOURCE
METER SOURCE
AUX 4
MONITOR
SOURCE
METER SOURCE
GRP 1
INSERT ON
BALANCE
=
LR
AUX 2
MASTER
EFX
RETURN 2
SOLO
GRP 2
INSERT ON
BALANCE
=
LR
AUX 3
MASTER
EFX
RETURN 3
SOLO
GRP 3
INSERT ON
BALANCE
=
LR
AUX 4
MASTER
EFX
RETURN 4
SOLO
GRP 4
INSERT ON
P
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MONITOR LEVEL
Control
Adjusts the Monitor input signal level
to the Left/Right bus.
MONITOR RETURN
This switch determines the signal
source to the Group Monitor sec-
tion; additionally it displays the signal
shown on the bargraph meter above.
(see also MONITOR SOURCE LED
above) In the UP position the signal
fed to the group Monitor section and
bargraph meter is the Group output.
When depressed (DOWN) the signal
fed is derived from the associated rear
MONITOR RETURN pins on the DSUB
connector on the rear panel.
MONITOR SOLO (AFL)
When pressed, routes the Monitor
signal (post level and pan) signal to
the Solo bus. Additionally this switch-
es the Main Monitor Output (normally
fed the Left/Right Mix) to source the
signal from the AFL/PFL Master Lev-
el in the Master section as well as to
trigger LED indicators in the Master
section and Meter-Bridge stating a
solo has been pressed.
MONITOR MUTE
When pressed will Mute the Monitor
Input signal to the Left/Right bus. It
is recommended when the Monitor
section is not being used that it be
muted.
MONITOR PAN
Control
This control blends the Monitor Input
post-level/post mute signal between
the Left and Right buses. When at the
centre, detented position, both sides
are fed equal amounts of signal (each
down by 3dB).
Trident 78 The Master Module

Trident 78 Owners Manual 14
Trident 78 Group Monitor Aux Sends Trident 78 The Master Module
The Master section of the TRIDENT 78 console contains all of the controls
that aect the overall functionality of the console.
An accurately matched 100mm stereo fader controls the level of the
master stereo balanced outputs. A key feature is the addition of a
switchable transformer into the left/right monitor outs, which when
fitted allows the user to put two high quality transformers into the
monitor output path. These transformers are an optional add on and
do not come standard.
A talkback system is provided which incorporates an internal high
quality electret microphone with an option to switch over to an ex-
ternal microphone, this is plugged into the rear of the console via the
associated DSUB connector pins, +48V phantom volts are always avail-
able on these pins. The talkback signal can be routed to the auxiliary
buses and the 8 subgroups. When the ‘TALK TO GROUPS’ button is
used, the monitor signal is dimmed to avoid feedback in the control
room monitor speakers.
The main monitor system is very comprehensive. The engineer can
monitor anyone of three stereo playback devices. ‘2TK 1 RET’ and ‘2TK
2 RET’ are conventional analogue connections located on the master
connector section so that the playback of a stereo device such as a cd
player or output of a computer sound card can be selected to the con-
trol room monitor speakers and a 3.5mm TRS mini jack available on the
module allows the user to plug in his external portable audio source
too (e.g. Ipod). The monitor system is provided with a SUM MONO control
which combines the left/right monitor signals so that it is possible to
check mono compatibility. It should be noted that the mono facility
is purely a monitor function and does not aect the main stereo left/
right output which remains as a true stereo image.
A very useful further facility in this section is the provision of an alternate
monitor outputs (Alt MONITOR) which when switched ON routes the
monitor signal to associated set of output pins on the rear of the mas-
ter section so that an alternative monitor system can be set up. This
makes it possible to listen to the signal on (for example), a dierent set
of monitor speakers so that comparisons can be made.
A headphone jack with a high quality stereo amplifier is provided
which allows the engineer to monitor the console only on headphones
if required. A separate stereo volume control is provided so that the
headphones can be adjusted independently from the main monitor
control level.
A stereo master level control is also provided so that the volume of the
AFL/PFL system can be adjusted into the control room monitor speak-
ers. This comes combined with indicator LED that notifies the user that
a console SOLO switch has been pressed and that the AFL/PFL signal
is now being fed to the control room monitors.
The following gives a brief description of the controls on the Master module.

Trident 78 Owners Manual15
Trident 78 The Master Module MONITOR SECTION
L/R MONITOR
Xformer IN
Inserts a transformer path into the
Left/Right Monitor outputs. The
transformer is an optional add on
and does not get installed by default.
Note: If the transformer is not fitted,
then this switch will not do anything
and will not illuminate.
L/R INSERT ON
When depressed, this switch places
the rear panel Left and Right insert
paths to the Insert Sends and back
from the Insert Returns in line with the
signal path. This insert point is directly
after the Left/Right mix stage and be-
fore the Left/Right stereo Fader and
allows the user to connect an external
device in series with the Left/Right sig-
nal and to be able to switch it in/out
from the front panel.
SOLO ACTIVE LED
When this LED is illuminated, it indi-
cates that one or more SOLO switch-
es have been pressed on the console.
The console monitor output is now
being fed from the solo left/right mix
buses. Additionally the console main
Left/Right meters are switched to
monitor the solo left/right mix and
an additional meter bridge indicator
flashes to show the console is in a
“SOLO” state.
STEREO IN JACK
(3.5mm, 1/8”)
This jack allows the engineer to plug
in an external stereo signal via a
standard 1/8” wire cable ( i.e IPOD)
which can then be selected to the
main Control Room Monitors. To as-
sign this signal into the main mon-
itors, the user has to depress the
2-TRK 1 switch.
2-TRK 2
When depressed this selects the sig-
nal from the stereo 2-TRK 2 Return
pins of the DSUB (on the rear mas-
ter connector panel) to the control
room monitors. This switch has pri-
ority over 2-TRK 1 switch above. (see
description 2 TRK 1)
SUM MONO
Combines the Left and Right sig-
nals feeding the control room mon-
itors to produce and summed (L+R)
mono signal that feeds both Left and
Right monitor outputs. Note: The
SUM MONO facility is purely a moni-
tor function and does NOT aect the
main stereo Left/Right output which
remains as a true stereo image.
SOLO MASTER LEVEL
CONTROL
This control adjusts the level of the solo
left/right mix fed to the control room
monitors when one or more SOLO
switches are selected on the console.
This presets the SOLO signal level and
enables the engineer to balance the
signal levels to the control room mon-
itors from the main mix and the solo
mix. Note: Main Left Right meters al-
ways show the solo signal pre this level
control (unaected by this control).
2-TRK 1
When depressed this selects either the
signal from the stereo 2-TRK 1 Return
pins of the DSUB (on the rear master
connector panel) or the stereo sig-
nal plugged in the STEREO IN JACK
(above) and feeds it to the control
room monitors. The stereo 2-TRK 1 re-
turn signal from the rear connector is
normalled to the STEREO IN JACK sig-
nal and if a signal wire is plugged into
the STEREO IN JACK it replaces the
signal from the 2-TRK 1 Return from the
rear panel and that is the signal that is
switched to the main monitors. Note:
When this switch is depressed, the
main Left/Right mix is disconnected
from the control room monitors, also
if 2-TRK 2 switch is depressed (below)
this kills the 2-TRK 1 signal to the con-
trol room monitors. For monitoring sig-
nals into control room monitors the Pri-
ority is SOLO mix Ú2-TRK 2 Ú2-TRK
1 Ú Main Left/Right mix.

Trident 78 Owners Manual 16
Trident 78 The Master Module MONITOR SECTION Trident 78 Master TALKBACK SECTION
MONITOR LEVEL
CONTROL
This control adjusts the level of the
stereo signal feeding the control
room monitors.
HEADPHONE LEVEL
This control adjusts the level of signal
fed to the headphone jack below. The
signal fed to the Control Room Moni-
tors also feeds the headphone jack
and this Headphone level control can
be adjusted independently of the main
MONITOR CONTROL LEVEL.
MONITOR MUTE
When depressed this switch kills the
signal being fed to the Control Room
Monitors.
DIM
When depressed, this reduces the
level of the main monitor outputs by
approx 30 dB. Note: this has no ef-
fect on the main Left/Right outputs
of the console.
ALT MONITOR 1 ON
When this switch is depressed the
main Left/Right Monitor feed is di-
verted to the ALT MONITOR output
pins of the associated DSUB on the
rear connector panel.. In doing so,
the console main Left /Right signal
is switched OFF. This allows the en-
gineer to set up a separate monitor
feed (say to another set of monitor
speakers) and be able to A/B the sys-
tems for comparison.
TALKBACK MIC
Directly behind this location is situat-
ed the internal high quality electrets
microphone.
TALK TO GROUPS
Momentary switch, which when de-
pressed assigns the talkback signal
(post the talkback LEVEL Control)
to the all the group buses. Addition-
ally when depressed the signal to the
control room monitor is dimmed (at-
tenuated) by approx 30 dB to avoid a
feedback situation in the control room
monitor speakers.
HEADPHONE JACK
(3.5mm, 1/8”)
To monitor the console on headphones
the engineer can plug them into this
jack. The headphones jack is driven by
a dedicated high quality, high current
stereo amplifier.
TALKBACK LEVEL
CONTROL
This control adjusts the level of the
talkback microphone to the talkback
destinations below.
EXTERNAL MIC
When depressed switches the talk-
back microphone source from the
internal electrets above or the exter-
nal microphone plugged into the ap-
propriated pins of the DSUB situated
on the rear master connector panel.
Note: the rear panel talkback micro-
phone connector is supplied with
+48V phantom voltage and feeds into
an internal high quality preamp stage.
TALK TO AUXES
Momentary switch, which when de-
pressed assigns the talkback signal
(post the talkback LEVEL Control) to
all AUX mix busses.

Trident 78 Owners Manual17
Trident 78 Rear Connections | Power Supply
Input Connector
Composite
C M Y CM MY CY CMY K
Composite
C M Y CM MY CY CMY K
Master Connector
Power Supply

Trident 78 Owners Manual 18
Trident 78 Rear Connections | Power Supply Trident 78 DSub-25 Pin Out
—————————————————————————————————————————————————
DSub Position
————————————————————————————————————————————————————————————————————
8 7 6 5 4 3 2 1
————————————————————————————————————————————————————————————————————
INPUTS
————————————————————————————————————————————————————————————————————
Mic Input Input 8 Input 7 Input 6 Input 5 Input 4 Input 3 Input 2 Input 1
————————————————————————————————————————————————————————————————————
Channel Send Send 8 Send 7 Send 6 Send 5 Send 4 Send 3 Send 2 Send 1
————————————————————————————————————————————————————————————————————
Channel Return Return 8 Return 7 Return 6 Return 5 Return 4 Return 3 Return 2 Return 1
————————————————————————————————————————————————————————————————————
Line Input Input 8 Input 7 Input 6 Input 5 Input 4 Input 3 Input 2 Input 1
————————————————————————————————————————————————————————————————————
Monitor Input Input 8 Input 7 Input 6 Input 5 Input 4 Input 3 Input 2 Input 1
————————————————————————————————————————————————————————————————————
Direct O/P O/P 8 O/P 7 O/P 6 O/P 5 O/P 4 O/P 3 O/P 2 O/P 1
————————————————————————————————————————————————————————————————————
————————————————————————————————————————————————————————————————————
8 7 6 5 4 3 2 1
————————————————————————————————————————————————————————————————————
MASTER
————————————————————————————————————————————————————————————————————
Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX
Returns 5 - 8 Ret 8R Ret 8L Ret7R Ret 7R Ret7R Ret 7R Ret 5R Ret 5R
————————————————————————————————————————————————————————————————————
Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX Stereo EFX
Returns 1 - 4 Ret 4R Ret 4L Ret3R Ret 3R Ret2R Ret 2R Ret 1R Ret 1R
————————————————————————————————————————————————————————————————————
Aux O/Ps NC NC Aux 6 Aux 5 Aux 4 Aux 3 Aux 2 Aux 1
————————————————————————————————————————————————————————————————————
Group Send Send 8 Send 7 Send 6 Send 5 Send 4 Send 3 Send 2 Send 1
————————————————————————————————————————————————————————————————————
Group Return Return 8 Return 7 Return 6 Return 5 Return 4 Return 3 Return 2 Return 1
————————————————————————————————————————————————————————————————————
Group O/Ps O/P 8 O/P 7 O/P 6 O/P 5 O/P 4 O/P 3 O/P 2 O/P 1
————————————————————————————————————————————————————————————————————
Group
Monitor Input Input 8 Input 7 Input 6 Input 5 Input 4 Input 3 Input 2 Input 1
————————————————————————————————————————————————————————————————————
Master Ext Mic Spare 2TRK1 2TRK1 2TRK2 2TRK2 Master Right Master Left
Inputs Input Right Left Right Left Return Return
————————————————————————————————————————————————————————————————————
Master Alt Out Alt Out Mon Out Mon Out Master Right Master Left Master Right Master Left
O/Ps Right Left Right Left Out Out Send Send
————————————————————————————————————————————————————————————————————
87
—
G
+
—
+G
65
—
G
+
—
+G
43
—
G
+
—
+G
21
—
G
+
—
+G25
13
14
1
DSub-25 Pinout
CH8 IN/OUT -
CH8 IN/OUT +
1
14
CH7 IN/OUT -
CH7 IN/OUT +
15
CH5 IN/OUT -
CH5 IN/OUT +
18
CH6 IN/OUT -
CH6 IN/OUT +
4
17
CH4 IN/OUT -
CH4 IN/OUT +
6
20
CH3 IN/OUT -
CH3 IN/OUT +
8
21
CH1 IN/OUT -
CH1 IN/OUT +
11
12
24
CH2 IN/OUT -
CH2 IN/OUT +
9
23
16
2
3
25
10
13
22
7
19
5
26 27
87
—
G
+
—
+G
65
—
G
+
—
+G
43
—
G
+
—
+G
21
—
G
+
—
+G25
13
14
1
DSub-25 Pinout
CH8 IN/OUT -
CH8 IN/OUT +
1
14
CH7 IN/OUT -
CH7 IN/OUT +
15
CH5 IN/OUT -
CH5 IN/OUT +
18
CH6 IN/OUT -
CH6 IN/OUT +
4
17
CH4 IN/OUT -
CH4 IN/OUT +
6
20
CH3 IN/OUT -
CH3 IN/OUT +
8
21
CH1 IN/OUT -
CH1 IN/OUT +
11
12
24
CH2 IN/OUT -
CH2 IN/OUT +
9
23
16
2
3
25
10
13
22
7
19
5
26 27

Trident 78 Owners Manual19
Trident 78 Warranty Information
Tident Audio Developments Limited Warranty Statement
The following outlines the warranty periods for The Trident 78 Analogue
console. All extended coverage is based on the timely registration of said
products within the 30 days of purchase to the original purchaser from the
date of Proof Of Purchase. Proof of purchase is the original Bill Of Sale or
Sales Invoice from an authorized dealer.
Inquire about extended warranty.
Trident Audio Developments is covered by a limited warranty against defects
in materials and workmanship (parts and labor) for a period of Two (2) Years
from the date the unit is sold to the Dealer or original purchaser only.
Receive an additional free year warranty covering parts and labor with the
registration of your console!
Acceptable registration is met by filling out online the warranty registration,
along with a copy of the original sales receipt as proof of the original date of
purchase. http://www.tridentaudiodevelopments.com/product-registration/
The terms and conditions of this limited warranty are:
1. The warranty applies to Trident Audio Developments purchased from Trident
Audio or authorized Trident Audio dealers. The authorized dealers of Trident
Audio products are listed at each brands websites, or on the main page at
www.tridentaudiodevelopments.com
2. The warranty covers any defects in materials and workmanship, and is
limited to the repair or replacement of the original registered product. In its
sole discretion, Trident Audio may either repair or replace the product with
a product of the same model, or replace the product with a new model of a
similar specification, when the same model is no longer available.
3. The warranty does not cover any of the following: damage caused by the
user; spillages or moisture damage; neglect, abuse or misuse, including but not
limited to the failure to use the products for its normal purpose in accordance
with the manufacturer’s instructions for use, failure to properly maintain the
product in ac-cordance with the manufacturer’s instructions, and/or the failure
to use the prod-ucts in accordance with the manufacturer’s specifications;
normal wear and tear; use of products with incompatible or faulty equipment;
unauthorized modifications; repairs conducted by unauthorized persons or
service center’s; the model and/or serial number being altered, removed or
made illegible; accidents; or acts of God or any cause beyond the control of
Trident Audio. It does not cover damage caused by connecting to improper
power voltage supply, cosmetic defects, such as paint finish, and general
wear and tear, as well as certain consumables not covered under warranty
such as fuses, meter bulbs and component shelf life on pots, faders and
switches. Products sold in AS IN condition are not covered.
4. The warranty is applicable to the original purchaser throughout the warranty
period as stated above or until original owner resells product. If a unit is
received for warranty repair, and after complete examination and testing, no
problem is found with the unit, customer will be charged for time labor plus
return shipping costs, presuming initial user error falsely caused the unit to
be determined faulty.
5. The warranty does not aect any statutory rights the original purchaser
may have in accordance with the law applicable in the jurisdiction where
the product was purchased, or any rights the original purchaser may have
against the author-ized dealer pursuant to their original purchase agree-
ment. This warranty gives you specific legal rights and you may also have
other rights, which vary from state to state, and or country to country.
6. Any claim pursuant to this warranty from the date of purchase of any Trident
Audio Developments product must be returned, together with the original
proof of purchase, to the authorized Trident Audio reseller that sold the
product, or to the Trident Audio service center in either the USA or the UK.
All returns to Trident Audio, Trident Audio UK or any Trident Audio Service
Center must be in the original packing, accompanied by the issued Repair
Authorisation, and must be shipped to the address specified on the Return
Authorisation via insured freight at the customer’s own expense. Factory
original packaging can be ordered from Trident Audio, Inc. Customer will be
charged for new factory original packaging if customer fails to ship product
to Trident Audio in the original factory packaging. Trident Audio will not pay
for express or overnite delivery.
7. Once the product has been received, the authorized Trident Audio service
center will assess the warranty claim and arrange to either repair or replace
in accordance with the warranty procedure prescribed by Trident Audio for
their authorized service center network. The warranty replacement will be
conducted by the authorized Trident Audio service center as promptly as
possible and within a reasonable time from the date of submission of the
warranty claim. In all circumstances, a claimant under this warranty will be liable
for all costs in delivering their Trident Audio brand product to the authorized
service center for war-ranty replacement and for all costs in collecting the
repaired/replacement Trident Audio product from that authorized Trident
Audio service center. Trident Audio service center may waive the cost of
return shipping after full inspection to determine cause of warranty.
8. Trident Audio will not accept any warranty replacement without the original
proof or purchase of the Trident Audio product, and without the registration
of the Trident Audio product within 30 days of purchase by mail, or online. It
is the original purchaser’s responsibility to keep the original proof or purchase
safe at all times, as Trident Audio is not obliged to provide a replacement of
the original proof or purchase.
9. The warrantor assumes no liability for property damage or any other incidental
or consequential damage whatsoever which may result from failure of this product.
10. A Trident Audio product that was not purchased through an authorized
and legitimate sales channel is considered “Grey Market”. Warranties for Trident
Audio Products purchased outside the USA will be covered by Trident Audio
UK for that specific country or region, or by local Trident Audio distributors.
Trident Audio product originally sold to the USA market and consequently
resold overseas forfeits its warranty. American Trident Audio Dealers are forbidden
to export Trident Audio Products. Non-American deal-ers are forbidden to
export to the USA. “Grey Market” purchases are not covered by any warranty.
In the case that a Trident Audio Product must be returned, it should be returned
to the original place of purchase, or the Trident Audio factory, with proper
return authorisation. Returns from outside the USA, customer shall adhere to
specific shipping, customs, and commercial invoicing instructions given with
the Return Authorisation. Trident Audio will not be responsible for transportation
costs or customs fees related to any importation or re-exportation charges
whatsoever.
11. Trident Audio shall not be liable for damages in excess of the purchase
price of the Trident Audio product arising out of the use or inability to use
the Trident Audio product insofar as allowed to be disclaimed by law in the
jurisdiction where the Trident Audio product was purchased.
Governing Laws
If the purchaser acquired a Trident Series 78 originating from the Trident
USA oce direct, or through any Authorized US Dealer, then any order or
contract to which these terms and conditions apply and all matters arising
there under shall be con-strued according to and governed by the Laws of
The State of California. If the purchaser acquired a Trident Series 78 originating
from the UK oce direct, or through any Authorized European Dealer, then
any order or contract to which these terms and conditions apply and all
matters arising there under shall be con-strued according to and governed
by the Laws of England (UK).
For Tech Support and Repair Authorisation, please contact:
US Service & Sales
1845 W. 169th Street Gardena, CA 90247
+1 (310) 323-9050
sales@tridentaudiodevelopments.com
UK Service Only
+44 (0) 1392 826 005
ukservice@tridentaudiodevelopments.com
tridentaudiodevelopments.com
Trident 78 Input Module Flow Diagram
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