PARK AUDIO TA Series User manual

FOUR-CHANNEL INSTALLATION
POWER AMPLIFIERS
TA series
TA604
TA604L
TA604D
TA604DL
Owner’s Manual

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
CAUTION! The amplifier runs on 230VAC voltage. Removing the cover will expose
you to a potentially dangerous voltage! Do not use the unit if the electrical power cord is
frayed or broken.
Power is supplied from 230 VAC single-phase grounded 50 / 60 Hz source!
CAUTION! The amplifier can yield dangerous output voltage! Do not touch the non-
insulated cable parts, connected to the unit in operation!
CAUTION! The high sound pressure level of speaker systems generated by high
output power, delivered by the amplifier, may be hazardous to your hearing. Please,
take adequate safety precautions.
WARNING! The amplifier yields high output power. The manufacturer shall not be held
responsible for any damage to the speakers caused by excessive power from the unit.
WARNING SIGNS:
Important information!
Intended to warn the user about any important applicable information
contained in this Owner’s Manual.
Hazardous voltage inside!
Intended to warn the user about electric shock hazard due to high voltage
inside the product.

UNPACKING
The manufacturer’s quality control system provides for careful examination of each
product before it leaves the factory to ensure its flawless appearance. After unpacking,
please, check the unit for any physical damage. In case of damage, please, contact your
local dealer. Keep the shipping carton and all packing material, as you may require them
for reshipment of the unit.
SUPPLY KIT
Power Amplifier 1 pc.
Power Cable 1 pc.
USB A – USB B Cable 1pc. (only for TA604D and TA604DL)
Connectors:
– 3 pin Euroblock plug (2EDGK-5.08-3) 4pcs.
– 3 pin Euroblock plug (15EDGK-3.81-3) 4pcs.
– 4 pin Euroblock plug (15EDGK-3.81-4) 2pcs. (only for TA604D and TA604DL)
Owner’s Manual 1 pc.
Warranty 1 pc.

2
GENERAL
TA series are four-channel power amplifiers designed for fixed installations. The
series includes the following amplifier models:
– TA604 – 4 х 150 W at 4 Ohm load;
– TA604L – 4 х 150 W for 70 V or 100 V line operation;
– TA604D – 4 х 150 W at 4 Ohm load, with DSP;
– TA604DL – 4 х 150W for 70 V or 100 V line operation, with DSP.
ATTENTION! Unless specified otherwise, the word «amplifier» hereinafter applies
to any of the above models.
WARNING!
Make sure to take all precautions where required.
Please, follow all instructions and guidelines.
To avoid any risk of electrical shock and/or fire hazard, please, do not expose
this unit to rain or moisture. Do not use this unit near open water.
Use dry cloth to clean the unit.
Do not block fan vents.
Do not place the unit near heating radiators, furnaces or other heat-emitting
devices.
Do not connect this unit to an ungrounded power supply line.
Protect the power cord against damage.
Disconnect the unit from power supply in case of thunder or during downtime.
In case of malfunctioning, caused by water or any other foreign matter inside or
when the unit has been dropped, or the power cord has been damaged, or the unit
has been found faulty, please, consult qualified personnel.

3
DESIGN FEATURES
Physical Design
The amplifier is enclosed in a metal(steel) case of 44 mm(1U) height. The amplifier is
designed to be standard rack-mounted (19" rack).
Power Supply Unit
All four channels of the amplifier share the same switching power supply unit.
Cooling System
Natural. Individual for each pair of channels and power supply.
Power Amplifier
Class D power amplifier.
Balanced Inputs
The use of balanced inputs provides for an essential reduction of the environment-
induced hum and noise interference with long input connecting cables.
Line Outputs (only for TA604D, TA604DL)
The line outputs have a post-DSP signal. The signal parameters are determined by
the selected preset setting. You can change the signal parameters and presets using the
USB interface.
DSP (only for TA604D, TA604DL)
Built-in DSP engine, installed into amplifier, ensures digital filtering, separation into
frequency bands, optimal EQ, time alignment, as well limiting and speakers overload
protection. The parameters set up is performed by personal computer, connected via
USB-interface, by means of Park Editor (software does not require installation).
The software and Owner’s Manual can be downloaded on parkaudio.ua
(«Downloads» in TA604D, TA604DL section). « »Moreover, in the Video section you can
find tutorials on amplifiers settings by means of Park Editor.
Gain Controls
These allow setting the required level for each amplifier channel. The controls are
located on the rear panel.
Detachable Power Cord
This feature is provided for convenience of transportation and rack mounting.
Remote Level Controls (only for TA604D, TA604DL)
The amplifier has function of wired remote level control, which ensures convenient
control, when placing the amplifier in the 19"rack or at the place, where access to the rear
panel is difficult.

4
FUNCTIONAL FEATURES
Overload and Short-Circuit Protection
Individual per each channel. This protective system becomes active in case of short-
circuited output or overload caused by reduced load impedance. It disables the output
signal of the respective channel and then the amplifier gradually resumes its level. As
overload protection activates, so lits the PROT LED the corresponding channels pair.
Thermal Protection
Independent for each pair of channels. In this case upon reaching 85°C, the indepen-
dent protection system disables the respective pair of amplifier channels. The CLIP LED
goes on and the SIGNAL LED of the affected pair of channels goes off.
As soon as the amplifier cools down, the affected channels gradually regain their
level up to the set value.
Soft Signal Start
During the power-on process, this feature ensures smooth gain from zero to the set
level to provide for a smooth rise of the sound level in the loudspeakers.
AUTO STANDBY Mode
As the signal is not applied to all inputs for more than 5 minutes, STANDBY mode
activates. All amplifier units are OFF. As 0.1 sec duration signal with more that -60 dBu
level appears at any input, all amp units are ON.
This mode can disabled by AUTO STANDBY switch on the rear panel.

5
Power
amplifier
Ch 1
LEVEL
Ch 2
LEVEL
N.C. N.C.
SPEAKER
OUTPUTS
Ch1
Ch2
INPUT
Ch 2
GND
Hi-Pass Filter
45Hz
INPUT
Ch1
GND
Hi-Pass Filter
45Hz
CLIP
THERM
PROT
CLIP
Ch 3
LEVEL
Ch 4
LEVEL
INPUT
Ch 4
GND
Hi-Pass Filter
45Hz
INPUT
Ch3
GND
Hi-Pass Filter
45Hz
CLIP
THERM
PROT
CLIP
N.C. N.C.
SPEAKER
OUTPUTS
Ch1
Ch2
N.C. N.C.
SPEAKER
OUTPUTS
Ch3
Ch4
TA604 BLOCK DIAGRAM

6
Ch4
SPEAKER
OUTPUTS
Ch3
Ch2
SPEAKER
OUTPUTS
Ch1
Power
amplifier
Ch 1
LEVEL
Ch 2
LEVEL
INPUT
Ch 2
GND
Hi-Pass Filter
100 Hz
INPUT
Ch1
GND
Hi-Pass Filter
100 Hz
CLIP
THERM
PROT
CLIP
Ch 3
LEVEL
Ch 4
LEVEL
INPUT
Ch 4
GND
Hi-Pass Filter
45Hz
INPUT
Ch3
GND
Hi-Pass Filter
45Hz
CLIP
THERM
PROT
CLIP
100V
70V
COM
100V
70V
COM
100V
70V
COM
100V
70V
COM
TA604L BLOCK DIAGRAM

7
INPUT
DSP
Out 1
In 1
Out 3
Out 2
In 2
Out 4
USB Port
USB
Interface
Ch1
INPUT
Ch 2
OUTPUT (POST DSP)
Ch 3
GND GND
OUTPUT (POST DSP)
Ch 4
Ch 4
LEVEL
Ch 3Ch 2Ch 1
THERM THERM
CLIP
PROT
CLIP CLIP
PROT
CLIP
Power
amplifier
Ch 1 Ch 2 Ch 3 Ch 4
V+ G4 G3 V+ G2 G1
GND GND
GPIGPI
N.C. N.C.
SPEAKER
OUTPUTS
Ch1
Ch2
N.C. N.C.
SPEAKER
OUTPUTS
Ch1
Ch2
N.C. N.C.
SPEAKER
OUTPUTS
Ch3
Ch4
TA604D BLOCK DIAGRAM

8
100V
SPEAKER
OUTPUTS
Ch1
70V
COM
100V
Ch2
70V
COM
100V
SPEAKER
OUTPUTS
Ch3
70V
COM
100V
Ch4
70V
COM
INPUT
DSP
Out 1
In 1
Out 3
Out 2
In 2
Out4
USB Port
Ch1
INPUT
Ch 2
OUTPUT (POST DSP)
Ch 3
OUTPUT (POST DSP)
Ch 4
Ch 4
LEVEL
Ch 3Ch 2Ch 1
THERM THERM
CLIP
PROT
CLIP CLIP
PROT
CLIP
Power
amplifier
Ch 1 Ch 2 Ch 3 Ch 4
V+ G4 G3 V+ G2 G1
GPIGPI
USB
Interface
GND GND GND GND
100Hz
24дБ/окт
Hi Pass Filter
Hi Pass Filter
100Hz
24дБ/окт
TA604DL BLOCK DIAGRAM

9
TA604 4-CHANNEL AMPLIFIER
Ch 3 Ch 4
1
43
1 5
6
7 8 9
10
15 14 13 12
11
SIGNAL – LEDs, indicating output signal on Channels 1,2,3 and 4,
respectively.
THERM – overheating alarm LEDs for channels 1-2 and 3-4, with
corresponding channels switching off.
CLIP – clip LEDs for Channels 1,2,3 and 4, respectively.
They indicate:
– overload condition causing distortion;
– activation of DSP limiter (for ).TA604D, TA604DL
POWER – power supply switch.
PROT – protection activation LEDs for channels 1-2 and 3-4.
READY – LEDs, indicating channels 1-2 and 3-4 readiness for operation. The
LEDs lit brightly in the normal mode and dimly lit in STANDBY mode.
1 5 6 10
3 8
2 4 7 9
11
13 15
2
12 14
FRONT PANEL

10
REAR PANEL
TA604 Power Amplifier
GND GND
SPEAKER OUTPUTS
010
Ch4 Ch 3 Ch4 Ch3
INPUTS
Ch4 Ch 2 Ch1
AIN G
0Ch3
AIN G
0Ch2
AIN G
0Ch1
AIN G
101010
GND GND
Ch2 Ch1
INPUTS
MAINS IN
~230V 50/60Hz 200W
TO REDUCE THE RISK OF ELECTRIC
SHOCK GROUNDING OF THE CENTER PIN
OF MAINS PLUG MUST BE MAINTAINED
4 min4 min
N.C.N.C.
AUTO STANDBY
OFF
ON
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Made in
Ukraine
model TA604
POWER AMPLIFIER
Serial No
2714 6 8 1095113
MAINS IN – .power cord socket for 230 V AC 50/60Hz grounded mains
AUTO STANDBY – button for activation the amplifier's auto standby mode.
SPEAKER OUTPUTS – outputs for connecting loudspeakers (Euroblock
connectors). Signals, applied to output connectors, and their polarity are
indicated on the panel.
LEVEL – output signal level controls.
INPUTS – balanced inputs (Euroblock connectors) for channels 4, 3, 2, 1.
37
4 6 8 10
1
2
5 9
GND GND
SPEAKER OUTPUTS
010
Ch4 Ch 3 Ch4 Ch3
INPUTS
Ch4 Ch 2 Ch1
AIN G
0Ch3
AIN G
0Ch2
AIN G
0Ch1
AIN G
101010
GND GND
Ch2 Ch1
INPUTS
MAINS IN
~230V 50/60Hz 200W
TO REDUCE THE RISK OF ELECTRIC
SHOCK GROUNDING OF THE CENTER PIN
OF MAINS PLUG MUST BE MAINTAINED
4 min4 min
N.C.N.C.
AUTO STANDBY
OFF
ON
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Made in
Ukraine
model TA604
POWER AMPLIFIER
Serial No
21 4 6 8 10
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
113 5 97
MAINS IN – .power cord socket for 230 V AC 50/60Hz grounded mains
AUTO STANDBY – button for activation the amplifier's auto standby mode.
SPEAKER OUTPUTS – outputs for connecting loudspeakers (Euroblock
connectors). Signals, applied to output connectors, and their polarity are
indicated on the panel.
LEVEL – output signal level controls.
INPUTS – balanced inputs (Euroblock connectors) for channels 4, 3, 2, 1.
37
4 6 8 10
1
2
5 9
TA604L Power Amplifier

11
TA604D Power Amplifier
MAINS IN – .power cord socket for 230 V AC 50/60 Hz grounded mains
AUTO STANDBY – button for activation the amplifier's auto standby mode.
SPEAKER OUTPUTS – outputs for connecting loudspeakers (Euroblock
connectors). Signals, applied to output connectors, and their polarity are
indicated on the panel.
LEVEL – output signal level controls.
INPUTS – balanced inputs (Euroblock connectors) for channels 2, 1.
OUTPUTS – balanced line outputs (Euroblock connectors) POST DSP for
channnels 4,3.
GPI – output for remote control connection (Euroblock connectors) for
channnels 4,3,2 and 1.
USB – USB port for connection to personal computer.
36
4 5 7 8
1
2
9
GND GND GND GND
SPEAKER OUTPUTS
010
USB
G4 G3V+ G2 G 1V+
Ch4 Ch 3 Ch4 Ch2 Ch1
AIN G
0Ch3
AIN G
0Ch2
AIN G
0Ch1
AIN G
101010
INPUTS (POST DSP)
OUTPUTS
MAINS IN
~230V 50/60Hz 200W
TO REDUCE THE RISK OF ELECTRIC
SHOCK GROUNDING OF THE CENTER PIN
OF MAINS PLUG MUST BE MAINTAINED
4 min4 min
N.C.N.C.
AUTO STANDBY
OFF
ON
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Ch2 Ch1Ch4 Ch 3
Made in
Ukraine
PI G
PI G
model TA604D
POWER AMPLIFIER
Serial No
12
9 10 112 11 4 5 6 7 83
1
10
11
12
GND GND GND GND
SPEAKER OUTPUTS
010
USB
G4 G3V+ G2 G 1V+
Ch4 Ch 3 Ch4 Ch2 Ch1
AIN G
0Ch3
AIN G
0Ch2
AIN G
0Ch1
AIN G
101010
INPUTS (POST DSP)
OUTPUTS
MAINS IN
~230V 50/60Hz 200W
TO REDUCE THE RISK OF ELECTRIC
SHOCK GROUNDING OF THE CENTER PIN
OF MAINS PLUG MUST BE MAINTAINED
4 min4 min
N.C.N.C.
AUTO STANDBY
OFF
ON
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Ch2 Ch1Ch4 Ch 3
Made in
Ukraine
PI G
PI G
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
12
9 10 112 11 4 5 6 7 83
1
TA604DL Power Amplifier
36
4 5 7 8
1
2
9
10
11
12
MAINS IN – .power cord socket for 230 V AC 50/60 Hz grounded mains
AUTO STANDBY – button for activation the amplifier's auto standby mode.
SPEAKER OUTPUTS – outputs for connecting loudspeakers (Euroblock
connectors). Signals, applied to output connectors, and their polarity are
indicated on the panel.
LEVEL – output signal level controls.
INPUTS – balanced inputs (Euroblock connectors) for channels 2, 1.
OUTPUTS – balanced line outputs (Euroblock connectors) POST DSP for
channnels 4,3.
GPI – output for remote control connection (Euroblock connectors) for
channnels 4,3,2 and 1.
USB – USB port for connection to personal computer.

12
CABLE REQUIREMENTS
Input Cables
Make sure to use only shielded cables whether balanced or unbalanced. Shielding,
when properly grounded, protects a signal against external electrical interference.
Greater distances require a balanced cable. Avoid placing input cables close to
power cords or power transformers.
RACK-MOUNTING REQUIREMENTS
The amplifier is designed to fit a standard 19”rack. For stationary use, it will be
enough to fix securely only the front panel of the amplifier to the rack. However, never
attempt to transport the unit unless its rear end is properly supported and/or securely fixed,
as it may be fraught with danger of damage.
While mounting, make sure to provide free air access to the front and rear sides of the
rack. It is necessary to leave 1U empty space above or below the amplifier.
AC POWER REQUIREMENTS
The amplifier is supplied with a three-wire grounded AC power cord, and should be
plugged into a standard 3-wire grounded electrical outlet, which supplies
230VAC 50/60Hz.
The amplifier is equipped with stabilized switching power supply, which ensures
normal amplifier operation at the mains voltage range from 160VAC to 250VAC, giving
the full rated output power.
The amplifier is connected to the mains via cable, supplied with the amplifier.
The actual AC current consumption depends on the audio signal level and the load
impedance. For system design purposes it must be noted, that for typical audio program
material the amplifiers, driving all channels at nominal impedance, just peaking at the
clipping level, have 1 A average power consumption.
In order to reduce the AC hum, please, plug all sound equipment, interconnected with
signal cables, into the same power mains outlet.

13
AMPLIFIER MODES
ТА604L and TA604DL amplifiers operate only in four-channel mode, i.e. each
channel is connected to its load. In TA604 and TA604D amplifier each channel can be
used individually, as well BRIDGE mode can be used for each channels pair. Input signal
and load connection for TA series amplifier is shown in the picture below.
TA604
Four-channel Mode
TA604
Two-channel (BRIDGE) Mode
The loudspeakers are connected to the respective channels. The polarity of
connection is shown on the rear panel near corresponding sockets. Nominal impedance
should be not less than 4 Ohm. Balanced input signal of each channel is applied to the
corresponding input.
Gain control is performed via controls of the corresponding channels.
Loudspeakers are connected between channel 1 «+» output and channel 2 «-»
output for channels 1-2 pair, and between channel 3 «+» output and channel 4«-» output
for channels 3-4 pair. Nominal impedance should be not less than 8 Ohm. Balanced input
signal is applied to channels 1 and 2 (3 and 4) simultaneously at bridge connection of
these channels. Gain control is performed via controls of both channels, connected in
bridge mode. The controls should be installed in the same position.
SPEAKER OUTPUTS
010
Ch4
Ch3
Ch4 Ch2 Ch1
AIN G
0
Ch3
AIN G
0
Ch2
AIN G
0
Ch1
AIN G
101010
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Loudspeakers
Connection
for channels 3 and 4
4 min 4 min
Loudspeakers
Connection
for channels 1 and 2
4 min 4 min
GND GND
Ch4 Ch3
INPUTS
GND GND
Ch2 Ch1
INPUTS
Channel 3
Input
Signal
GND GND
Channel 4
Input
Signal
Channel 1
Input
Signal
GND GND
Channel 2
Input
Signal
SPEAKER OUTPUTS
010
Ch4
Ch3
Ch4 Ch2 Ch1
AIN G
0
Ch3
AIN G
0
Ch2
AIN G
0
Ch1
AIN G
101010
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Loudspeaker
Bridge Connection
for Channels 3 and 4
GND GND
Ch4 Ch3
INPUTS
GND GND
Ch2 Ch1
INPUTS
8 min8 min
Loudspeaker
Bridge Connection
for Channels 1 and 2
Input Signal
(Bridge Connection
for Channels 3-4)
GND
Входной сигнал
(Bridge Connection
for Channels 1-2)
GND

14
Output Lines are connected to «COM» and «70V» sockets of corresponding
channels. Balanced signal of each channel is applied to corresponding input. Gain control
is performed via controls of both channels, connected in bridge mode. The controls should
be installed in the same position.
TA604L
Four-channel Mode (connection on 100V line)
SPEAKER OUTPUTS
010
Ch4
Ch3
Ch4 Ch2 Ch1
AIN G
0
Ch3
AIN G
0
Ch2
AIN G
0
Ch1
AIN G
101010
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
GND GND
Ch4 Ch3
INPUTS
GND GND
Ch2 Ch1
INPUTS
Channel 3
Input
Signal
GND GND
Channel 4
Input
Signal
Channel 1
Input
Signal
GND GND
Channel 2
Input
Signal
Loudspeakers
Connection
to input on 100V line
for channels 4 and 3
Loudspeakers
Connection
to input on 100V line
for channels 2 and 1
TA604L
Four-channel Mode (connection on 70V line)
SPEAKER OUTPUTS
010
Ch4
Ch3
Ch4 Ch2 Ch1
AIN G
0
Ch3
AIN G
0
Ch2
AIN G
0
Ch1
AIN G
101010
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
GND GND
Ch4 Ch3
INPUTS
GND GND
Ch2 Ch1
INPUTS
Channel 3
Input
Signal
GND GND
Channel 4
Input
Signal
Channel 1
Input
Signal
GND GND
Channel 2
Input
Signal
Loudspeakers
Connection
to input on 70V line
for channels 4 and 3
Loudspeakers
Connection
to input on 70V line
for channels 2 and 1
Output Lines are connected to «COM» and «100V» sockets of corresponding
channels. Balanced signal of each channel is applied to corresponding input. Gain control
is performed via controls of the corresponding channels.

15
GND GND GND GND
SPEAKER OUTPUTS
USB
G4 G3V+ G2 G1V+
Ch4 Ch3 Ch2 Ch1
INPUTS ( )
POST DSP
OUTPUTS
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Ch2 Ch1Ch4 Ch3 PI
G
PI G
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
GND GND
8 min 8 min
Loudspeakers
BRIDGE
Connection
for Channels 3 and 4
Loudspeakers
BRIDGE
Connection
for Channels 1 and 2
Channel 1
Input
Signal
Channel 2
Input
Signal
GND GND GND GND
SPEAKER OUTPUTS
USB
G4 G3V+ G2 G1V+
Ch4 Ch3 Ch2 Ch1
INPUTS ( )
POST DSP
OUTPUTS
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Ch2 Ch1Ch4 Ch3 PI
G
PI G
GND GND
Channel 1
Input
Signal
Channel 2
Input
Signal
Loudspeakers
Connection
for Channels 3 and 4
4 min 4 min
Loudspeakers
Connection
for Channels 1 and 2
4 min 4 min
TA604D
Four-channel Mode
TA604D
Two-channel(BRIDGE) Mode
The loudspeakers are connected to the respective channels. The polarity of
connection is shown on the rear panel near corresponding sockets. Nominal impedance
should be not less than 4 Ohm. Balanced input signal is applied to channels 1 and 2, as it is
shown in the picture. Mode setting and DSP signal processing is performed by Park
Editor, using personal computer, connected to the amplifier via USB interface.
Gain control is performed via controls of the corresponding channels.
Loudspeakers are connected between channel 1 «+» output and channel 2 «-»
output for channels 1-2 pair, and between channel 3 «+» output and channel 4 «-» output
for channels 3-4 pair. Nominal impedance should be not less than 8 Ohm. Balanced input
signal is applied to channels 1 and 2, as it is shown in the picture. Mode setting and DSP
signal processing is performed by Park Editor, using personal computer, connected to the
amplifier via USB interface.
Gain control is performed via controls of both channels, connected in bridge mode.
The controls should be installed in the same position.

16
TA604DL
Four-channel Mode (connection on 100V line)
TA604L
Four-channel Mode (connection on 70V line)
GND GND GND GND
SPEAKER OUTPUTS
USB
G4 G3V+ G2 G1V+
Ch4 Ch3 Ch2 Ch1
INPUTS ( )
POST DSP
OUTPUTS
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Ch2 Ch1Ch4 Ch3 PI
G
PI G
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
GND GND
Channel 1
Input
Signal
Channel 2
Input
Signal
Loudspeakers Connection
to input on 100V line
for channels 4 and 3
Loudspeakers Connection
to input on 100V line
for channels 2 and 1
GND GND GND GND
SPEAKER OUTPUTS
USB
G4 G3V+ G2 G1V+
Ch4 Ch3 Ch2 Ch1
INPUTS ( )
POST DSP
OUTPUTS
4 min4 min
N.C.N.C.
SPEAKER OUTPUTS
4 min4 min
N.C.N.C.
Ch2 Ch1Ch4 Ch3 PI
G
PI G
COM
70V
100V
COM
70V
100V
COM
70V
100V
COM
70V
100V
GND GND
Channel 1
Input
Signal
Channel 2
Input
Signal
Output Lines are connected to «COM» and «100V» sockets of corresponding
channels. Balanced signal of each channel is applied to channels 1 and 2, as it is shown in
the picture.
Mode setting and DSP signal processing is performed by Park Editor, using
personal computer, connected to the amplifier via USB interface.
Gain control is performed via controls of the corresponding channels.
Output Lines are connected to «COM» and «70V» sockets of corresponding
channels. Balanced signal of each channel is applied to channels 1 and 2, as it is shown in
the picture.
Mode setting and DSP signal processing is performed by Park Editor, using
personal computer, connected to the amplifier via USB interface.
Gain control is performed via controls of the corresponding channels.
Loudspeakers Connection
to input on 70V line
for channels 4 and 3
Loudspeakers Connection
to input on 70V line
for channels 2 and 1

17
Installation amplifiers TA604D, TA604DL ensure the connection of remote level
controls. Level controls are connected to GPI inputs via 4-pin Euroblock plug.
The connections with individual control for each channel (pic.1) and general
connection for pairs of channels 1-2 and 3-4 for BRIDGE mode (pic.2) are shown below.
GND GND GND GND
USB
G4 G3V+ G2 G1V+
INPUTS ( )
POST DSP
OUTPUTS
Ch2 Ch1Ch4 Ch3 PI
G
PI G
R R
GND GND GND GND
USB
G4 G3V+ G2 G1V+
INPUTS ( )
POST DSP
OUTPUTS
Ch2 Ch1Ch4 Ch3 PI
G
PI G
R
R
R
R
REMOTE LEVEL CONTROLS CONNECTION
(only for TA604D, TA604DL)
Pic.1
Pic.2

18
Cable connection to EUROBLOCK plug is shown on the pictures below.
To connect the cables to the connectors it is important to:
– strip 15-20 mm of external cable insulation ;
– strip 5 mm of insulation of the connecting wire;
– insert the wire fully to EUROBLOCK plug;
– using a flat-blade screwdriver, turn screw clockwise to clamp wire tightly.
Wiring Connection to EUROBLOCK Connectors
Input Cable
Shield (GND)
Cold «–»
Hot «+»
Output Cable
(for TA604, TA604D)
Output «+»
Output «–»
Output Cable
for 70V Line
(for TA604L, TA604DL)
Output to 70V line
COM
Output Cable
for 100V Line
(for TA604L, TA604DL)
Output to 100V line
COM
Wire connection to line input connectors and for remote control connection is
performed similarly.