Ashly MX-406 User manual

MX-406
Stereo
Microphone/Line
Mixer
Operating Manual
ASHLY AUDIO INC.
847 Holt Road Webster, NY 14580-9103 Phone: [phone]
Toll-Free: [phone] Fax: [phone]
www.ashly.com

2
Operating Manual -MX-406 Stereo Microphone/Line Mixer
Table Of Contents
1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 AC POWER REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4 FRONT PANEL CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5 CONNECTORS AND CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 REAR PANEL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7 TYPICAL APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.1 Small Sound Reinforcement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.2 Meeting Room, Board Room, or Church Mixer Using Remote Control . . . . . . 9
8 TROUBLESHOOTING TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.1 No Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.2 Distorted Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
8.3 Excessive Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.4 Excessive Hum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
9 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 WARRANTY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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Operating Manual - MX-406 Stereo Microphone/Line Mixer
1. INTRODUCTION
Congratulations on your purchase of an Ashly
MX-406 stereo mic/line mixer, a professional, studio qual-
ity solution to everday mixing needs. MX-406 features
include six channels of mic or line inputs with mic input
pad, TRS insert points, and +48V phantom power. Each
channel has up to 60dB input gain, separate treble and
bass controls, an aux send control, level, and a stereo pan
control. A stereo line input is provided for a stereo pro-
gram source such as tape, CD, or MP3 player. Outputs
include aux master, stereo line out (pre-master), stereo left
and right, transformer balanced mono out, and stereo head-
phones. A full 11 segment LED array indicates stereo
output level.
Stereo main outputs use 1/4" jacks, stereo line
input and line out use RCA connectors, and there is an
additional 3.5mm jack on the front panel for stereo line in.
A transformer isolated 600 ohm mono output uses an XLR
connector. Ashly mixers still use professional quality
16mm metal shaft potentiometers for greater accuracy and
long life and of course, Ashly products come with a worry-
free five year warranty.
2. UNPACKING
As a part of our system of quality control, every
Ashly product is carefully inspected before leaving the
factory to ensure flawless appearance. After unpacking,
please inspect for any physical damage. Save the ship-
ping carton and all packing materials , as they were care-
fully designed to reduce to minimum the possibility of
transportation damage should the unit again require pack-
ing and shipping. In the event that damage has occurred,
immediately notify your dealer so that a written claim to
cover the damages can be initiated.
The right to any claim against a public carrier
can be forfeited if the carrier is not notified promptly and
if the shipping carton and packing materials are not avail-
able for inspection by the carrier. Save all packing mate-
rials until the claim has been settled.
3. AC POWER REQUIREMENTS
The MX-406 mixer will perform normally from
100 to 240 volts AC, 50-60Hz. Use only properly
grounded AC receptacles. To reduce the risk of ground
loop hum, use a central point for system AC power distri-
bution. Power consumption is less than 30 watts.
WARNING:
THIS APPARATUS MUST BE EARTHED
The exclamation point within an eqilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance instructions in the literature
accompanying the device.
The lightning flash with arrowhead
symbol, within an equilateral triangle, is
intended to alert the user to the presence
of uninsulated "dangerous voltage"
within the product's enclosure that may be
of sufficient magnitude to constitute a risk
of electric shock to persons. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT RE-
MOVE COVER. NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK,
DO NOT EXPOSE THIS APPlIANCE TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN

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Operating Manual -MX-406 Stereo Microphone/Line Mixer
4. FRONT PANEL CONTROLS
4.1 Input Gain
This three position switch sets the operating level
of the microphone and line input preamp. The correspond-
ing switch values -20db, -40dB, and -60dB refer not to
the actual gain, but rather to the expected nominal input
signal strength.
Best signal to noise ratio is obtained with higher
gain settings. It is therefore desirable to set the gain con-
trol as high as possible while still leaving 20dB of head-
room for signal peaks. Line level inputs (1/4" jack) will
likely use a setting of -20dB, while mic inputs generally
require a setting of -40dB for close mic applications, and
-60dB for quieter signals. If a channel's clip LED is blink-
ing, first turn down that channel's level control. If the
clip LED is still flashing, turn down the input gain.
4.2 Clip
Input Clip LEDs are peak sensitive and monitor
all critical points within the input channel. The clip LED
turns on whenever any portion of the audio path within
the input channel reaches a level 3 dB below actual clip-
ping. Clipping in the MX-406 occurs at +20dB.
4.3 Treble/Bass
This concentric knob is used for broad EQ
changes to each input channel. Channel EQ consists of a
high shelf control (treble) at 4KHz, and a 250Hz low shelf
control (bass). EQ boost or cut is ±12dB.
4.4 Aux
The aux send is an additional level control used to
send signal from each input channel to monitors, an effect
unit, or another mix. The aux master output combines all
six channel's aux level signals. The aux control is factory
set to pre-fader, pre-EQ, but can be internally switched to
post-fader, post EQ. To make this change, refer the fol-
lowing procedure to a qualified service technician:
Unplug the unit's AC power cord from the outlet.
Remove the bottom cover which is fastened by seven 6-32
screws. Locate the 3 pin header labeled AUX at the middle
of the back edge of the front portion of the channel cir-
cuit board. Remove the shunt bar from the "Pre" position
indicated on the circuit board legend and place the shunt
on the "Post" position.
4.5 Level and Pan
This concentric knob adjusts the level and stereo
position of each channel. If a channel's level control is
always turned up to 9 or more, try increasing the gain
first. Conversely, if the level control is consistently turned
down to 1 or less, decrease the gain setting first. Re-
member that the gain setting should be set as high as pos-
sible while still allowing 20dB of headroom.
4.6 Stereo Line In
This control adjusts the level of the stereo line
input RCA jack on the back panel, as well as the 3.5mm
stereo line in jack on the front panel. They can be used for
tape, CD/DVD, or MP3 player audio inputs, and can also
be used for a stereo effect return. Both inputs can be used
simultaneously, but there is only one level control. For

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Operating Manual - MX-406 Stereo Microphone/Line Mixer
expanding the channel capacity of the MX-406, the stereo
line input can be used as stacking inputs for supplement-
ing the MX-406 with another mixer, such as an Ashly LX-
308 stereo line level mixer.
4.7 Aux Master Output
This control adjust the level of the aux master
¼" jack output, which gets it's signal from the six aux
level controls on the input channels. It is used for an
effects unit send, or can drive a power amplifier for moni-
tors or an extra loudspeaker zone.
4.8 Main Outputs
These two controls determine the signal level to
the ¼" jack left and right outputs. They are used to drive
power amplifiers for the main loudspeakers, or to con-
nect to a stereo recording device.
4.9 Mono/Phones Output
Thinner concentric knob adjusts the level of the
summed mono output. It is completely independent of the
main left and right master controls. In other words, changes
to either left or right output level will not affect the mono
output level.
The outer concentric knob adjusts the level of the
stereo signal to the headphone jack. Headphones should
have an impedance of 600 ohms or greater, or signal dis-
tortion may result.
4.10 Output Meters
A pair of peak reading 10 segment LED meters are
used to indicate stereo output level in VU. 0 VU is equiva-
lent to +4 dBu (1.228Vrms).
Green LED's are used below 0 VU, yellow above
0 VU and two red LED's indicate clipping. The clip LED's
turn on 3dB below actual clipping, detecting excessive
signal level on any critical audio path within the master
section. If all outputs are turned down and there is still
clipping, then one or more inputs must be turned down.
4.11 Phantom Power LED
The phantom power switch is on the back panel.
When the switch is pressed in, the LED is lit and +48VDC
is applied to all six mic inputs for use with condenser
microphones. If there is a mix of both condenser and
dynamic microphones, the phantom power will not affect
the operation of the most dynamic mics.

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Operating Manual -MX-406 Stereo Microphone/Line Mixer
5. CONNECTORS AND CABLES
The MX-406 mixer is fitted with five types of au-
dio connectors: 3-pin XLR type male (mono output), 3-
pin XLR type female (mic inputs), 1/4" tip-ring-sleeve
(TRS) phone jack, 3.5mm jack (stereo line in), and RCA
jack. Certain 1/4" jack connections may use an unbal-
anced mono plug, which is also shown.
Two-conductor (twisted pair) shielded cable is
best for all XLR type connections. Belden No. 8412 or its
equivalent is an excellent cable due to its heavy construc-
tion. This type of cable should be used for all portable
applications. Snake cables containing multiple shielded
pairs must be handled very carefully because the leads
tend to be fragile, and a broken conductor is difficult to
repair.
If low level and high level lines are run parallel
for long distances, crosstalk may occur. In fact, the
crosstalk (signal leakage between cables) can cause an
electronic feedback loop, oscillation, and possibly dam-
age to the equipment. To minimize crosstalk, physically
separate low level (microphone) cables from speaker
cables by the greatest feasible distance. At any point
where cables meet, run low level cables perpendicular to
high level or speaker cables. If low and high level or
speaker cables must be run parallel and in close proxim-
ity to one another, they should be bundled separately. In
a permanent installation, avoid running speaker cables and
mic cable through the same conduit pipe.
6. REAR PANEL FEATURES
6.1 Microphone Input
The MX-406 microphone input is an active bal-
anced type with a nominal impedance of 1200 ohms. Its
noise performance is best with a 200 ohm microphone.
The Mic input connector is a standard 3-pin XLR female
with the shield on pin 1, the (+) in-phase connection on
pin 2, and the (-) out-of-phase connection on pin 3.
Audio Connector Types
Tip (+)
Ring (-)
Sleeve (Gnd)
Stereo Phone Plug
used for balanced
2 = (+)
3 = (-)
1 = (gnd)
XLR pins are
numbered
on the
connector
insert.
XLR Male
XLR Female
Tip (+)
Sleeve (Gnd)
Mono Phone Plug
used for unbalanced
RCA Plug
(+)
(Gnd)
3.5mm Stereo Phone Plug
used for Stereo Line In
Tip (L), Ring (R)

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Operating Manual - MX-406 Stereo Microphone/Line Mixer
6.5 Stereo Line Input
The stereo line RCA inputs, and the front panel
stereo line in 3.5mm jack, have a nominal operating level
of -10dBu to match most consumer audio sources. This
signal is controlled by the Stereo Line Input dial on the
front panel. This input is also used as a stereo effects
return, or as a stacking input for adding additional mixers.
6.6 Stereo Line Out
The stereo line outputs are nominal -10dBu "pre-
master", so they are not affected by the settings of the
main Left/Right output controls. These outputs would be
used for making a pre-output fader recording off of the
stereo mix, or for stacking the MX-406 stereo output into
another mixer.
6.7 Aux Master Output
The 1/4" jack aux master output is used to drive a
monitor or zone amplifier, effects processor, recording de-
vice, or any function which requires level control inde-
pendent from the main stereo mix. It is pseudo-balanced,
which means that while it is a single ended signal, it has
balanced impedance for low noise when driving an active
balanced input circuit over a long distance.
6.8 Mono Output
The XLR mono output combines the left and right
stereo signals (pre output fader), and uses an isolation
transformer capable of driving 600 ohm lines. Pin 1 is
6.2 Input Pad
The input pad is a 20dB attenuation switch on
the rear panel for use with the XLR microphone inputs.
It should normally be left in the "out" position for best
signal to noise ratio and should only be used when the
input is being overdriven with the gain control at its mini-
mum setting.
6.3 Line Input
The line input is a standard 1/4" TRS active bal-
anced type found in the same "combo jack" connector as
the mic input. The line input balanced impedance is
20KΩ. It will accommodate a wide range of input levels.
6.4 Channel TRS Insert
A channel TRS insert patch point allows a de-
vice such as a remote level controller, graphic equalizer,
noise gate, compressor/limiter, or direct out recording
device to be used with one or more input channels.
The MX-406 TRS insert jacks use the tip for out-
put and ring for the returning input. These signals will be
unbalanced, so cable length should be at a minimum to
maintain low noise.
To use the TRS insert as a Direct Line Output
(pre EQ) for recording, you must make a special cable
with tip and ring connected at the MX-406 end and a tip-
sleeve mono plug at the other end. Connecting tip and
ring at the mixer insert jack is necessary for uninterrupted
signal within the mixer when using direct line outputs.

8
Operating Manual -MX-406 Stereo Microphone/Line Mixer
ground, pin 2 is (+), and pin 3 is (-). This signal is determined by the mono output level control, with a nominal operating
level of +4dBu.
Note: The mono transformer-balanced output is designed to drive up to +24dBu into 600 ohm loads. Because
of the nature of an output transformer, the output level increases as the impedance of the terminating load becomes
higher than 600 ohms. Whereas a "direct-coupled" output stage like that of the right and left outputs will not change
as the load changes, any transformer used in an audio path is affected by its termination impedance. Since line level
inputs on audio devices are typically 10K
Ω or higher, expect a slight increase (2.5dB) in output level when driving
conventional active 10K Ω inputs with the transformer outputs.
6.9 Stereo Outputs
The 1/4" jack stereo right and left outputs are controlled by the left and right master. They are pseudo-balanced
TRS jacks with a nominal operating level of +4dBu into any load, and are capable of driving long lines.
6.10 +48V Phantom Power Switch
This switch applies +48VDC to all six XLR mic inputs to power condenser microphones. Phantom power will
not affect most dynamic mics, which may
be used along with condenser mics.
7. TYPICAL
APPLICATIONS:
7.1 Small Sound Reinforcement System:
In the setup shown here, the MX-406 is
used to mix typical sound sources that
might be found in a church, small club,
school theater or similar environment.
Four of the input channels are used for
vocal microphones, while the remaining
two channels are used for stereo accom-
paniment tracks. The stereo line input is
used for additional pre-recorded music
such as that of a movie soundtrack, CD
player, or MP3 player. Stereo line output
RCA jacks are used to record the event to
a cassette, video camera, or even a PC with
recording capabilities.
Stage monitors are fed using the aux mix
to the master aux output, and left and right
outputs drive the main speakers. The
mono output drives a 70 Volt distributed
sound system amplifier, used for plenum
(ceiling) speaker installations.
MX-406
Microphone
Mixer
Four Vocal
Mic Inputs
EQ,
Limiter,
Crossover,
Amplifier,
etc.
(-)(+ )
2
3
1
Stereo
Outputs
Right
Mon o
Outpu t
(Transformer
Bal ance d)
Model MX-406
Made In USA
100-120VAC
50-60Hz 15W
CAUTIO N
RISKOF ELECTRIC SHOCK
DO NOT O PEN
+48V
Phantom
Power
Left
Au x
Ma ster
Output
Stereo
Line
Input
Stereo
Line Out
-L-
-R-
-20dB Pad
(Mi c Only )
Ch.6 In sert
Tip=Out R ing=In
Ch.6
Mic/Line Inp ut
-20dB Pad
(Mi c Only )
Ch.5 In sert
Tip=Out Ring=In
Ch.5
Mic/Line Inp ut
-20dBPad
(M ic On ly )
Ch.4 Ins ert
Tip=Out Ring=In
Ch.4
Mic/Line Input
-20dB Pa d
(Mic Only)
Ch .3 In ser t
Tip=Out Ring= In
Ch.3
Mic /Li ne Inp ut
-20dB Pad
(Mi c Only )
Ch.2 I nsert
Tip=Out Ring=In
Ch.2
Mic/Line Inp ut
-20dB Pad
(Mi c Only )
Ch.1 I nsert
Tip=Out Ring=In
Ch.1
Mic/Line Input
PUSH PUSH PUSH PUSH PUSH PUSH
Main
Right
(L)
MX-406 Small Sound Reinforecement System
Accompaniment Tracks
Cassette Player
(R)
(Aux) Monitor
Amplifier Monitor
Main
Left
VCR, CD, DVD Player
Audio Output
Recording
Device
(Stereo
Line Out)
70 Volt Distributed
Sound System Amp
(Stereo
Line Input)
(Mono
Output)
(Stereo
Outputs)

9
Operating Manual - MX-406 Stereo Microphone/Line Mixer
7.2 Meeting Room, Board Room, or Church Mixer Using Remote Control:
In this illustration, the MX-406 is interfaced with an Ashly VCM-88 eight channel remote level controller,
allowing the mixer to be operated from a distance by a non-technical person. Remote control of the VCM-88 is achieved
through the use of Ashly's RD-8 desk-top remote controller, RW-8 wall-plate version, or PC control using Protea System
Software. The RD-8 and RW-8 use a single mic cable for control data, while PC control uses RS-232 serial communica-
tions. Remote control can be located up to 1,300 feet from the main audio equipment rack.
8. TROUBLESHOOTING TIPS
8.1 No Sound
Check the AC power. Is the power switch on? Check the level meters. If they are operating, the problem is
between the mixer and the later components in the system. If there is no meter activity, check to see that you really have
an input signal and that it is on the desired channel.
8.2 Distorted Sound
Something is being overdriven in the signal path. If the clip indicators are active, reduce the channel gain and/
or press in the pad switch on the rear panel. There are many gain adjustments in the mixer itself and probably several
others in other system components which makes it possible to overdrive an input section and then incorrectly try to
reduce the gain of the output section. The best way to approach setting gains is to establish the operating level of input
100 -12 0V AC
50- 60Hz 15 W
Data Input
2
3
1
Data
V+
Ashly Audio Inc.
Model VCX-80
MadeIn USA
INPU TS a re Activ e Bala nced ( Tip is +, R ing is -).
OUTPUTS MayBe W ired BalancedorUnbalanced.
** T RS I ns ert io n Is A va ila ble - S ee Ow ne r 's M a nua l **
Ch.2
DC Control
Ch. 8 Ch. 7 Ch. 6 Ch.5 Ch. 4 Ch. 3
Ch. 1
InIn Out In Out In Out In Out Out In Out In Out
In Ou t
1 - Ch.1
2 - Ch.2
3 - Ch.3
4 - Ch.4
5 - Ch.5
6 - Ch.6
7 - Ch.7
8 - Ch.8
9 - Master
10 - Control CCW
11 - (AuxGround )
12 - Control CW
13-1 4 - ( Aux Da t a In)
15 - NC
1
9
Re mote Cont rol
AVIS: RIS QU E D E
CHOC ELEC TRIQUE .
NE P AS OUVRIR.
1210
Pin 1-9
10K CW
** ** ** ** ** ** **
**
Master Output
MX-406
Microphone
Mixer
(Single Jack
TRS Inserts Used)
RD-8 Remote Controller
With 3-Pin XLR Data Cable
VCM-88
Channels 1-6
Patched Into
MX-406 Channel
Insert Points
Channels 7-8
Used For Mixer
Output Control
Up To
Six Mic/Line
Inputs
(-)(+)
2
3
1
Stereo
Outpu ts
Left
Mono
Outpu t
(Tr a n sf o rm e r
Balan ced)
Model MX-406
Made In USA
100-120VAC
50- 60 Hz 15W
CAUTIO N
RISKOF ELECTRIC SHOCK
DO NO T O P E N
+4 8 V
Phantom
Power
Rig ht
Aux
Master
Output
Ster eo
Aux
Inpu t
Ster eo
Line O ut
-L-
-R-
-20dB P ad
(Mic Only)
Ch. 6 In sert
Tip=Out Ring=In
Ch.6
Mic/Line Input
-20 dB P ad
(Mic Only)
Ch. 5 Inser t
Tip =Ou t Ri n g=In
Ch. 5
Mic/Line Input
-20 dB P a d
(Mic Only)
Ch. 4 In sert
Tip=Out Rin g=In
Ch.4
Mic/Line Input
-20 dB P ad
(Mic Only)
Ch. 3 Inser t
Tip =Ou t R in g=I n
Ch. 3
Mic/Line Input
-20 dB P ad
(Mic Only)
Ch.2 Insert
Tip=Out Rin g=In
Ch. 2
Mic/Line Input
-20 dB P a d
(Mic On ly )
Ch. 1 In sert
Tip =Ou t R in g=I n
Ch.1
Mic/Line Input
PUSH PUSH PUSH PUSH PUSH PUSH
Speaker
Zone 2
+10
-70
+5
0
-5
-10
-20
-30
-50
-
-15
+10
-70
+5
0
-5
-10
-20
-30
-
-50
∞
-15
RD-8
Remo te Level Contr ol
XLR DataConnector
On To p or B a ck .
Do NotUse
Transformers.
Ch.1
On
Ch.2 Ch.3 Ch.4 Ch.5 Ch.6 Ch.7 Ch.8 Master
Remote
Disabled
Gain (dB) Gain (dB)
V+
1
3
2
Data On
∞
Typical Application of MX-406 with VCM-88/RD-8 Remote Control
(L) (R)
EQ,
Limiter,
Crossover,
Amplifier,
etc.
Speaker
Zone 1
(L) (R)
(L)
(R)

10
Operating Manual -MX-406 Stereo Microphone/Line Mixer
stages first by setting their gain as high as possible but leaving about 20dB of headroom for loud peaks, then move on
to set the master gain to produce a good meter reading. Proceed to set the gain of equalizers, limiters, crossovers, and
amplifiers following the mixer in the same manner, always working toward the later stages of the system.
8.3 Excessive Noise
If the noise is in the form of hiss, the problem is usually due to an input stage set for insufficient gain and then
compensating for it by increasing the level. Try increasing gain and reducing level. Also, check that the -20dB rear
panel pad switch is not unnecessarily enabled.
8.4 Excessive hum
This is usually caused by "ground loops" in the system wiring. A complex sound system with many sources
separated by significant distance and using several power outlets has many opportunities for this problem to occur. If
possible, feed everything in the system from one power source with a common ground. Use balanced input and output
connections between widely separated components.
If you need help, get in touch with your Ashly dealer or call an Ashly technical service representative.
9. SPECIFICATIONS
DISTORTION
THD at +4dBu output, 20Hz-20KHz . . . . . . . . . . . . . . <0.05%
THD at +12dBu output, 30Hz-10KHz . . . . . . . . . . . . . <0.05%
IMD (SMPTE) at +12dBu output . . . . . . . . . . . . . . . . . <0.05%
HUM & NOISE (20Hz-20KHz at max preamp gain)
equivalent input hum and noise . . . . . . . . . . . . . . . . . .<-128dBu
residual output noise
all levels at minimum . . . . . . . . . . . . . . . . . . . . . . . . . .<-100dBu
master levels at nominal
all channel levels at minimum . . . . . . . . . . . . . . . . . . . . .<-90dBu
aux master at nominal
all channel aux at minimum . . . . . . . . . . . . . . . . . . . . . .<-90dBu
master levels and one
channel level at nominal . . . . . . . . . . . . . . . . . . . . . . . . . <-68dBu
MAXIMUM VOLTAGE GAIN (±2dB)
MASTER
Mic/Line Input to Master Outputs . . . . . . . . . . . . . . . . . . +84dB
Mic/Line Input to Mono Output, 600 ohm load . . . . . . . +84dB
AUX SENDS
Mic Input to Aux Master Output, pre ch. level . . . . . . . . .84dB
Mic Input to Aux Master Output, post ch. level . . . . . . . . . 97dB
Stereo Line In to Master Output . . . . . . . . . . . . . . . . . . . . . 27dB
FREQUENCY RESPONSE
20Hz-20KHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5/-1.0dB
EQUALIZATION
Bass . . . . . . . . . . . . . . . . . . . . . . . ±12dB at 70Hz, shelving
Treble . . . . . . . . . . . . . . . . . . . . . . .±12dB at 8KHz, shelving
CROSSTALK
adjacent inputs, 20Hz-20KHz . . . . . . . . . . . . . . . . . . . . . <-65dB
VU METERS
Stereo outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -21 to +6 VU
0VU = +4dBu
PEAK INDICATORS
Peak Clip indicator on each input channel and left and right out-
puts, illuminates 3dB below clipping
PHANTOM POWER
+48 VDC applied to all Mic Inputs, switchable on rear panel.
Maximum total current draw = 80mA. Maximum single channel
current draw = 14mA. Gradual power-up and down to eliminate
"pops".
SHIPPING WEIGHT
13 lbs. (5.9kg)
POWER REQUIREMENTS
100-240 VAC, 50-60 Hz, 30 watt
DIMENSIONS
19" x 3.5" x 9.4" (483mm x 89mm x 239mm)
*unless otherwise stated, specification conditions are:
150 Ω source, maximum preamp gain, all other controls
set at nominal, XLR output into 600 Ω or greater.

11
Operating Manual - MX-406 Stereo Microphone/Line Mixer
10. Ashly Audio Inc. LIMITED WARRANTY (USA ONLY)
(Other countries please contact yourrespective distributorordealer.)
For units purchased in the USA, warranty service for this unit shall be provided byASHLYAUDIO, INC. in accordance
with the following warranty statement.
ASHLYAUDIO, INC. warrants to the owner of this product that it will be free from defects in workmanship and materials
for a period of FIVE years from the original-date-of-purchase.ASHLYAUDIO INC. will without charge, repair or replace at
its discretion, any defective product or component parts upon prepaid delivery of the product to theASHLYAUDIO, INC.
factory service department, accompanied with a proof of original-date-of-purchase in the form of a valid sales receipt. This
warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
EXCLUSIONS: This warranty does not apply in the event of misuse, neglect, or as a result of unauthorized alterations or
repairs made to the product. This warranty is void if the serial number is altered, defaced, or removed.ASHLYAUDIO, INC.
reserves the right to make changes in design, or make additions to, or improvements upon, this product without any
obligation to install the same on products previously manufactured.
Any implied warranties, which may arise under the operation of state law, shall be effective only for FIVE years from the
original-date-of-purchase of the product. ASHLYAUDIO, INC. shall be obligated to only correct defects in the product
itself.ASHLYAUDIO, INC. is not liable for any damage or injury, which may result from, or be incidental to, or a consequence
of, such defects. Some states do not allow limitations on how long an implied warranty lasts, or the exclusion, or limitation
of incidental or consequential damages, so the above limitations or exclusions may not apply to you.
OBTAININGWARRANTYSERVICE:
For warranty service in the United States, please follow this procedure:
1) Return the product toASHLYAUDIO, INC. freight prepaid, with a written statement describing the defect and application
that the product is used in.ASHLYAUDIO, INC. will examine the product and perform any necessary service, including
replacement of defective parts, at no further cost to you.
2) Ship your product to:
ASHLYAUDIO, INC.
Attention: Service Department
847 Holt Road
Webster, NY 14580-9103

Printed in USA MX406 r0111
ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103
Phone: [phone] Fax: [phone]
Toll Free [phone]
www.ashly.com
© 2011 by Ashly Audio Corporation. All rights reserved worldwide.
Operating Manual -MX-406 Stereo Microphone/Line Mixer