DV Promix 3
Portable Audio Mixer
Operation Manual for Mixers with PCB V1.34
Copyright 2006
Professional Sound Corporation
Printed in the U.S.A.

TABLE OF CONTENTSDESCRIPTION……………………………………………………………………………3
SAFETY WARNINGS……………………………………………………………………4
APPLICATIONS…………………………………………………………………………..4
PANEL LAYOUTS………………………………………………………………………..5-6
FUNCTIONSINPUTS……………………………………………………………………………6-10
A.

BALANCED INPUTSB.

INPUT LEVELSC.

MICROPHONE POWERINGD.

LOW CUT FILTERSE.

CHANNEL GAINF.

CHANNEL PANSOUTPUTS………………………………………………………………………….10-13
A.

BALANCED OUTPUTSB.

OUTPUTS, 3.5mm JACKC.

OUTPUT LIMITERSD.

HEADPHONE MONITOR OUTPUTE.

TAPE RETURN GAINMETERS……………………………………………………………………………..14
A.

PEAK READING METERSREFERENCE TONE OSC………………………………………………………….15
POWERING………………………………………………………………………….15

A.

INTERNAL POWER, ALKYLINE BATTERIES

2

B.

EXTERNAL POWERCONSTRUCTION…………………………………………………………………16-17
A.

CHASSISB.

ELECTRONIC TOPOLOGYC.

ENVIRONMENTAL OPERATIONINTERFACING……………………………………………………………………17-22
A.

TO PROFESSIONAL DV CAMS (XLR CONNECTORS)B.

TO PRO-SUMER CAMCORDERS (3.5MM JACK)C.

TO WIRELESS MICROPHONESD.

INPUT SELCTION CHARTE.

OUTPUT INTERFACE CHARTWARRANTY AND NON-WARRANTY SERVICE…………………………………22
SPECIFICATIONS…………………………………………………………………….23

DESCRIPTION
Thank you for purchasing the Professional Sound Corporation, DV Promix 3
Portable Audio Mixer. Professional Sound Corporation has been building
professional audio equipment for the film and television industries since 1986.
Our focus has always been on providing high quality portable audio equipmentthat meets the demanding needs of our customers. Our broadcast line ofequipment has been used world-wide on feature film productions,documentaries, television situation comedies, news gathering of all types, radio
remotes, sports coverage, Olympic events and more. We formed the “DV Audio”
line of equipment in order to offer our expertise in field audio to the DV cam
industry.

3

PSC is confident that this new DV Promix 3 Mixer has set new standards for
portable mixer technologies and features. Please feel free to contact us if you
have any comments or questions concerning your new mixer. Additionally, we
invite you to share your suggestions for new products you would like to see
developed.
Professional Sound Corporation extends a six-month warranty on parts and labor
to all DV Promix 3 Mixer owners who return their warranty cards at the time ofpurchase. This warranty gives you specific rights, which are stated on the card,and enables us to keep you informed of product updates.
The PSC DV Promix 3 Mixer provides all the functions necessary to produce
studio quality recordings in the field. It’s user friendly features, rugged designand sonic purity make the DV Promix 3 Mixer perfect for DV production,
electronic news gathering (ENG) electronic field production (EFP).

HEARING SAFETY WARNINGS:At Professional Sound Corporation, we care about your hearing both shortterm and long term. With that in mind, please heed the following warnings:
Please be sure that you have read this entire manual before operating thismixer.
While special attention has been given to your safety and hearing
protection, the operator determines proper and safe operating levels.
Please note the following:
Always turn down the headphone volume before plugging in yourheadphones.
Always operate your headphones at the lowest practical level.
Be especially cautious in unknown or widely varying environments.
Remember, your ears are your livelihood. Turn it down!
APPLICATIONS
•
•
•
•
•
•

DV Field Production
Electronic News Gathering
Location Recording (Dialogue and Music)
Digital Recording
Broadcast Remotes
Desktop Mixing for Video Post Production

4

Low Cut Filters (80Hz, 20Hz, 150Hz)
Pan Switches (Left, Center, Right)
Channel Faders (Volume Controls)
Meters (-20 to +3dBv, Green, Amber, Red)
Headphone Monitor (Direct, Tape return)
Headphone Volume (Min to Max)
Oscillator Switch
Power Switch (Internal Battery, Off, External Power)

Input Level Switch: Line Level (0dB Gain), Dynamic Mic (60dB Gain),
Condenser Mic (45dB Gain)
48PH Switch (Applies 48V Phantom Power for 48PH Mics)
Input XLR Female Connector

Output XLR Male Connector
Output Level Switch: Line Level (0dB) Consumer Line level (-10dB)
Microphone Level (-40dB)
3.5MM Headphone Jack
3.5MM Tape Return Jack5

3.5MM Microphone Level Output Jack (-50dBv nominal level)

Left and Right Tape Return Level Adjustments
Battery Compartment (2x 9V Alkaline)
External Power Input (7 to 16Vdc)

INPUTS:A.

BALANCED INPUTSThe PSC DV Promix 3 Audio Mixer provides three input channels utilizing female
XLR connectors. The studio grade input circuitry is electronically balanced for
improved RF rejection and in-field practicality. The XLR connectors are wired asfollows: Pin 1 shield (ground), Pin 2 Audio high (in phase), Pin 3 Audio low (out ofphase). Balanced wiring enables longer cable runs without the worry ofexcessive noise due to nearby electromagnetic and radio frequency interference.
These balanced inputs may be unbalanced if desired. Either pin 2 or 3 may betied to ground (pin 1) to unbalance the inputs of the DV Promix 3.

6

B.

INPUT LEVELSThe PSC DV Promix 3 Mixer can accommodate a wide range of input levels.
Microphone levels of all types can be handled as well as line level signals. The
input range of the DV Promix 3 Mixer is –60dBu to +4dBu. Thus the DV Promix
3 is compatible with all forms of consumer and professional audio equipment.
The input level switches are located to the left of each input XLR connector.
These input level switches provide for three level settings: “D” Dynamic
Microphone (60dB gain), “C” Condenser Microphone (45dB gain), and “L” Line
Level (0dB gain) These input level gain settings are used to correctly interface
sources of varying levels to the DV Promix 3’s preamplifiers. Correct level
matching ensures maximum headroom and the lowest possible noise floor. For
most circumstances, you should use the “Dynamic” setting for use with Dynamic(non-powered) microphones such as the Shure SM-58 or Electro-Voice RE50.
You should use the “Condenser” setting when you use microphones such as theSennheiser ME-80/K6, Audio Technica AT-897 and other powered shot gun style
microphones. You should use the Line Level setting when connecting line levelsources to the DV ProMix 3 such as CD Players, MP3 Players and wirelessreceivers with line level outputs. Keep in mind that dynamic microphones have a
low inherent output level that requires that the pre-amp provide maximum gain,
condenser microphone have a higher output level and thus require somewhat
less pre-amplifier gain and line level sources do not require any gain from thepre-amplifier.
PLEASE SEE THE INPUT SETTING CHART AT THE END OF THIS MANUALFOR FURTHER RECOMMENDATIONS.

7C.

MICROPHONE POWERINGThe DV Promix 3 Mixer can accommodate the most popular microphones used
today. The microphone powering switches are located directly left of the input
XLR connectors. They can be switched to either Dynamic (D) or 48Phantom(48PH).
In the Dynamic position the mixer provides no microphone powering. This
position is used with Dynamic Microphones, Line Level inputs and when using
Wireless Receivers.
In the 48 Phantom Position the mixer provides 48 volts DC to power 48PH
microphones or simplex powered microphones with a range of 9 to 52 volts. Pin
1 is ground while pins 2 and 3 carry 48 volts DC. The term “phantom” is derived
from the fact that there is no voltage potential developed across a dynamic
microphone transducer that would interfere with its operation. However, most
portable wireless receivers will not operate properly with 48PH turned on. We
strongly recommend setting inputs to dynamic for use with all wireless systems.
**NOTE** Only use the 48PH microphone power when using microphonesthat are designed to operate from 48PH. When in doubt, check theoperational instructions that came with your microphone.
PLEASE SEE THE INPUT SETTING CHART AT THE END OF THIS MANUALFOR FURTHER SUGGESTIONS.

8D.

LOW CUT FILTERS

Low cut filtering is important in location recording where wind noise can cause
pre-amplifier overload. This effect can be minimized by switching the low cut
filter setting to either 80Hz or 150Hz. Each input channel of the DV Promix 3
Mixer is equipped with a low cut filter. These filters are activated via the three
way switches located to the left of the adjacent channel fader knobs. Thesefilters will attenuate all frequencies below a preset frequency at a rate of 6dB per
octave. When set at “20Hz”, frequencies below 20 Hz are effectively rolled off
with the mixer operating at full frequency response. Optional low cut filter
settings of 80Hz and 150Hz will roll off the frequencies below these figures at a
rate of 6dB per octave (-3dB level at 80Hz and 150Hz respectively). Always use
the minimum filter setting required for the job. For example, if you are indoors or
outdoors on a windless day, use the 20Hz setting. For outdoor use with low windconditions, use the 80Hz setting. For recording in high winds, use the 150Hz
setting.

E.

CHANNEL GAIN

In order to limit noise and increase headroom, the channel fader controls arelocated in the feedback path of the pre-amplifiers. This provides continuously
variable gain rather than just a decrease in channel output level when an
overload situation occurs. This results in increased headroom and lower chanceof signal clipping (severe distortion).

9

F.

CHANNEL PANS (CHANNEL ASSIGNMENT SWITCHES)The new DV Promix 3 Audio Mixer contains front panel mounted pan switches.
These pan switches are used to route the individual input channel’s signal toeither the left or right summing buss and subsequent left and right outputs.
When set to the left position, audio from that particular input is routed to the left
output only. When set to the center position, audio from that particular input isrouted to both left and right outputs. When set to the right position, audio form
that particular input is routed to the right output only. These functions are easily
viewed when watching the meters. If you have a particular input set “panned” tothe left only, you will see the audio register on the left output meter only. The
same holds true for inputs panned to the right. In that case, you will only see
activity on the right meter.

OUTPUTS:A.

BALANCED OUTPUTS (XLR Connectors)

The DV Promix 3 Mixer contains very high quality electronically balanced
outputs. This circuitry has been designed to provide wide bandwidth, lowdistortion and real-world ease of use. These outputs are available via the righthand panel mounted male XLR connectors. These outputs are switchable
between line level, consumer line level or microphone levels. In the 0dB setting,the mixer will nominally output a 0dBv signal (Line Level) In the –10dB setting,the mixer will nominally output a –10dBv signal (Consumer Line Level) and in the–40dB setting, the mixer will output a –40dBv signal (Microphone Level).

10

PLEASE SEE THE OUTPUT LEVEL INTERFACING CHART AND CABLE
RECOMMENDATIONS AT THE END OF THIS MANUAL FOR FURTHER
SUGGESTIONSB.

OUTPUTS, 3.5MM

The DV Promix 3 Mixer is also equipped with a 3.5mm stereo jack that outputs
signals at microphone level (-50dB). This output can be used to feed audio tocameras with only a 3.5mm audio input jack. This output is protected from themicrophone bias supplied by most cameras on their external microphone input.

C.

OUTPUT LIMITERS.

The limit threshold (activation level) is factory set at +2 on the meter. The limiters
compress the signal at approximately 2.7 to 1 ratio. This is to say an increase of
2.7dB in input signal will result in only a 1dB increase in output signal. Most video
cameras have limited audio track headroom and can easily be overloaded
resulting in distortion of the recorded audio. For this reason, the DV Promix 3

11

contains limiters that are controlled automatically for ease of use and will provide
high quality recordings.

D.

HEADPHONE OUTPUT

The Headphone output is located on the right side panel of the mixer. The DV
Promix 3 Mixer’s headphone amplifier circuitry is designed to drive virtually any
headphone with an impedance rating of 32 to 600 Ohms. The headphone
circuitry is controlled by the use of a switch and a volume control that areconveniently located on the front panel. The switch is used to control what theoperator listens to. It allows the operator to chose between monitoring “DIR” (theaudio that is present on the mixer’s output) and “TAPE” audio that may be fed
back from the headphone jack of the camera ensuring that audio has made it to
the camera.
This “TAPE” function is commonly called tape confidence
monitoring. It should be noted that many DV Cams are not equipped with Tape
Monitoring heads and thus do not provide a true tape monitor function. Even so,
the “Tape” monitor function on the DV ProMix 3 is still very useful as you can use
it to verify that your audio cabling between the DV ProMix 3 and your camera is
working and that your levels are properly matched. For example, if you
mistakenly set your DV Promix 3 to line level outputs and then connected it toyour cameras microphone input, when monitoring “Tape” you would hear that theaudio coming back from the camera was severely distorted. This feature is
helpful when trouble shooting audio problems in the field. For more trouble
shooting tips, please see the trouble-shooting guide in the back of this manual orin our “QUICK START GUIDE”.
*SAFETY NOTE* ALWAYS TURN DOWN THE HEADPHONE VOLUMEBEFORE PLUGGING IN YOUR HEADPHONES.

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E.

TAPE RETURN

The DV Promix 3 Mixer is equipped with a 3.5mm jack for use in monitoring tapeconfidence heads from most any recording device. These tape monitor
amplifiers can be adjusted to match the signal levels of most any device. Theselevels are adjusted using a small jewelers screwdriver (or “Greenie” screwdriver).
The adjustment points are located on the back panel of the mixer. The
tape/direct switch is located on the upper right hand corner of the front panel.
When set to ”DIR” the headphone amplifiers monitor the mixers output signal. If
switched to “TAPE”, then the phone amplifiers monitor the tape returns from thecamera.
To properly adjust the tape return amplifiers, you must first connect a tape returncable from your camera's headphone jack to the tape return jack on the DV
Promix 3. Then set the cameras headphone volume to a nominal value (midpoint). Next set the DV Promix 3’s headphone TAPE/DIR switch to DIR and thenspeak in a normal volume into one of your microphones.
Adjust thatmicrophones channel fader to get a nominal meter reading with peaks justlighting the “0” meter segment. Now adjust the mixer's headphone volume
control until you have a proper volume level in your headphones while listening to
the microphone. When you switch the Tape/DIR switch to Tape, you should
adjust the tape return trim pots located on the rear panel of the mixer until you
get a similar volume to that of the “DIR” setting. You may toggle the switch backand forth between Tape and DIR while making these adjustments to ensure thatyou have the same volume between the two settings. Now that this is calibrated,
you can monitor the audio coming back from the camera while you mix ensuringthat good quality audio is being recorded on your camera’s tape.

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METERS:

Meters Showing –10dB Signal Level (Signal level too low, correct byraising input fader level)

Meters Showing 0dB Signal Level (Signal level O.K. , your faders are set
correctly)

Meters Showing +2dB Signal Level (Signal level too high, correct bylowering input fader level)

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A.

PEAK READING METERS

The DV Promix 3 Mixer is equipped with a custom made LED meter. We
designed this meter to be easy to read and camera emulating. Because themost common use of this type of mixer is with DV Cams, we designed the DV
Promix 3’s meters to emulate the peak reading attributes found on many DV
Cams. In this manner, you can be confident of your recording levels even when
the DV Cam is being fed via cable or wireless transmission. Proper recordinglevels are very important. Audio signals that are recorded too low are hard tohear and generally noisy. Audio signals that are recorded too high will be
distorted and unintelligible. Always try and operate the mixer so that the audio
signal level just begins to light the “0” (Amber colored LED) on signal peaks(occasional flashes, not solidly lit). Under normal conditions such as recording
dialog, when the person is speaking you want the lower meter segments (-20, 10, -7) to be solidly lit and the –5 and –3 and –1 segments to flash on with thepeak amplitude of their voice. If you consistently have only the very low-levelsegments lit such as the –20 or –10 segments, you are operating the mixer too
low and need to increase the level of the input fader. If you consistently have the+2 or +3 segments solidly lit, you are operating the mixer at too high a level andneed to reduce the level of the input fader. This may take a little practice, but it iswell worth the effort. Proper recording levels will produce high quality recordings
and your clients will appreciate the effort.

REFERENCE OSCILLATOR:Your DV ProMix 3 is now equipped with a reference tone oscillator. This feature
is found on all professional audio mixers and is used to provide a reference tone
level at the beginning of each videotape and/or DVD. It is used for two purposes:
First, when shooting multi camera shoots, you want a consistent audio level fromall cameras when it’s time to edit the various shots together. Nothing is moreannoying than having the audio levels go up and down with each edited shot. To
stop this from happening, you must have consistent audio levels throughout yourtapes. To accomplish this, you must have some point of reference to start withand this is where the reference oscillator comes into play. Secondly, even if you
are only using one camera, you still want the DV ProMix 3’s audio meters to bematched up with those of the cameras. Once that is done, you can monitor youraudio levels from the DV ProMix 3 only rather than having to mix from the DV
ProMix 3 and keep track of your audio levels on your camera. In both of theseuses, single camera and multi camera, you should start each tape by turning on
the reference tone oscillator and noting that the DV ProMix 3’s meters will read15

“0”. Once noted, adjust your camera’s meters to read “0” as well. Once yourcamera’s meters are adjusted to match the meters of the DV ProMix 3’s meters,
you can turn off the reference tone oscillator. This procedure generally requires
only about 20 to 30 seconds to complete and will help you produce higher quality
audio in the field. If you are using multiple cameras or you must edit together
tape shot over multiple days, these segments of tone recorded at the beginningof each tape or at the beginning of each days shoot will come in handy. Whenyou edit the tapes together, you must simply adjust the audio level on yourediting software to match the “0” Tones. Once this is done, all of your audio will
be of consistent level and thus much better comprehended.
POWERING:

A. INTERNAL POWER, ALKALINE BATTERIES
Two “9 Volt” alkaline batteries are normally used to power the DV Promix 3
Mixer. These batteries are housed in a convenient battery compartment locatedon the rear panel of the mixer. When using two alkaline batteries, you can
expect 4 to 6 hours of operation under normal circumstances. In an emergency,
the mixer will operate from one battery, but battery life will be substantiallyreduced. Please note there is a polarity to the batteries and they must be
installed correctly. You will note that there are polarity markings inside thebattery drawers. Before installing the batteries into these holders or “drawers”
take a look into the holder itself and note the + and – symbols.
Note: Never store your DV Promix 3 Mixer for extended periods of time withalkaline batteries installed in the mixer. There is a possibility that thebatteries may leak causing corrosion of the mixer. Battery leakage and theresulting corrosion damage is not covered under the DV Promix 3 Mixer
warranty.
B. EXTERNAL POWER
The PSC DV Promix 3 Mixer can also be externally powered from any source ofDC power from 7 to 16 Vdc. The mixer consumes a minimum 70 mA over thisvoltage range. The external power connector is located on the rear panel of themixer. Pin outs of this connector are as follows:
Center Pin (+) Positive
Outside Ring (-) Negative

16

Center Pin diameter = 2.5mm
This external DC input is protected from reverse polarity. If you inadvertently
connect external power of the incorrect polarity, the mixer will not be damaged; itsimply will not power up.

CONSTRUCTIONA.

CHASSISThe new DV Promix 3 Mixer chassis has been designed for high degree of
torsional rigidity. This increased rigidity provides a stable base for the mixers
modern electronics. The complete chassis is formed from 0.040” aircraftaluminum. All punching is done on a computer controlled rotary turret punchpress for extreme accuracy. In addition, through careful design, we havemanaged to keep the overall weight of the DV Promix 3 Mixer to 1Lb, 11oz.
(0.8Kg) Total.
The mixer’s sheet metal is hand-formed using various press brake setups. The
housing parts are then painted. All silk-screening is then applied.
B.

ELECTRONIC TOPOLOGYThe new DV Promix 3 Mixer was designed from a clean sheet of paper. It
utilizes completely new circuitry designs based upon the latest advances in semi
conductor technology.
This new design uses modern semi-conductors from such sources as Linear
Technology, National Semiconductor and Texas Instruments to name but a few.
These operational amplifiers, voltage regulators and precision voltage referencesfeature low power consumption, low noise and low distortion.
C.

ENVIRONMENTAL OPERATIONYour new DV Promix 3 Mixer has been designed to operate under extreme field
conditions. The electronics have been designed to operate over a temperature
range of -4 to 158 degrees Fahrenheit (-20 to +70C) less the affects on batteries.
This in addition to the DV Promix 3’s ability to operate under high humidity
conditions makes it perfect for harsh field conditions.
INTERFACINGA.

TO PROFESSIONAL DV CAMS (XLR CONNECTORS):

17

The PSC DV Promix 3 Mixer is especially designed for easy interfacing with all
popular DV Cameras. The DV Promix 3 is equipped with two XLR maleconnectors on the right side panel. These XLR outputs can provide audio ateither Line Level (0dBv) Consumer Line Level (-10dB) or Microphone Level (40dBv). These outputs are normally used to feed audio to any device withbalanced (XLR) inputs. You can connect your DV Promix to most, but not allcameras with XLR input connectors using standard XLR microphone cables.
Keep in mind that you must match up the output level of the DV Promix 3 to the
input level required by your camera. I.E. if your camera has microphone level
XLR inputs, then set the DV Promix 3’s output level switches to “-40dB”. On theother hand, if your camera accepts line level inputs, then you may set the output
level switches to “-10dB or 0dB”.

B:

TO PRO-SUMER CAMCORDERS (3.5MM JACK):The PSC DV Promix 3 is also equipped with a dedicated microphone level output
designed to interface the mixer with cameras that are only equipped with a
3.5mm external microphone input jack. To interface this mixer to these types ofcameras, you simply need to plug in one end of the supplied 3.5mm cable to the
DV Promix 3’s “MIC” output jack and the other end into your camera’s external
MIC input jack. The DV Promix 3 has special circuitry incorporated to block yourcameras built in mic powering from interfering with the DV Promix operation.

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C:

TO WIRELESS MICROPHONES:

Receivers:
The DV Promix 3 Mixer will easily accept the output signal from virtually any
wireless receiver. It can accept microphone or line level signal via a simple
switch setting. Please note that most wireless receivers are not compatible with
48PH. You should always set the DV Promix 3’s MIC powering switch to “D”
dynamic when using wireless receivers.
Transmitters:
The DV Promix 3 Mixer can also be used to send audio signals to DV Cams via
wireless transmitters. The use of transmitters is normally accomplished byconnecting the DV Promix 3’s output XLR to the audio input of the specifictransmitter. Many transmitter manufacturers supply application specific cables
for this purpose. The DV Promix 3 Mixer has been designed to minimize RFinterference through the use of balanced outputs and other RF filtering. It is
important to note that transmitter placement greatly affects transmit range andclarity. For best results, transmitters should be mounted away from the mixers
metal surface allowing unimpeded RF radiation from the transmitter. When themixer is worn over the shoulder of the operator, you should mount the wirelesstransmitters to the shoulder strap for best operation.

D:

INPUT SETTING CHART:

DEVICE:
GENERIC DYNAMIC
MICROPHONESAZDEN # DX-580
AKG # D660S
AUDIO TECHNICA#PRO2AXBEYER DYNAMIC #M300
ELECTRO-VOICE # RE50
ELECTRO-VOICE # 635
SHURE # SM58
PROFESSIONALCONDENSERMICROPHONESAZDEN #SGM-1X
AZDEN #SGM-2X
AUDIO TECHNICA #835B
AUDIO TECHNICA #897
BEYER DYNAMIC #875
SONY #ECM670

INPUT LEVEL:“D”

MICROPHONE POWER:
“DYN”

“D”
“D”
“D”

“DYN”
“DYN”
“DYN”

“D”
“D”
“D”
“D”
“C”

“DYN”
“DYN”
“DYN”
“DYN”
“48PH”

“C”
“C”
“C”
“C”
“C”
“C”

“DYN”
“DYN”
“48PH”“48PH”“48PH”“48PH”

19

The Above chart represents only a small fraction of the possibilities thatexist when interfacing to microphones of every brand and type. We have
tried to list common examples for your use.

E:

OUTPUT LEVEL INTERFACING CHART:

DEVICE:DEVICEDV PROMIX DV PROMIXINPUTOUTPUTOUTPUTCONECTOR CONECTOR SWITCHSETTING
XLR, LINE
XLR
“0”
LEVEL

PRO AUDIO
RECORDERS
WITH XLRLINE LEVELINPUTSPRO AUDIO
RECORDERS
WITH XLR MICLEVELINPUTSPROCAMERAS
WITH XLRLINE LEVELINPUTSPROCAMERAS
WITH XLR MICLEVELINPUTSSEMI PROCAMERAS
WITH XLRINPUTS (PD –150, ETC)SEMI PROCAMERAS
WITH XLRINPUTS (PD –150, ETC)CONSUMERCAMERAS
WITH 3.5MM
MIC INPUT
JACK ONLY

SIGNALLEVELNOTES:

0dBv

Straight
XLR Cable

XLR, MIC
LEVEL

XLR

“-50”

-50dBv

Straight
XLR Cable

XLR, LINE
LEVEL

XLR

“0”

0dBv

Straight
XLR Cable

XLR, MIC
LEVEL

XLR

“-50”

-50dBv

Straight
XLR Cable

XLR, LINE
LEVEL

XLR

“-10”

Straight
XLR Cable

XLR, MIC
LEVEL

XLR

“-10dB”-10dBvConsumerLine level
PD-150-10dBv

3.5MM
JACK, MIC
LEVEL

3.5MM
JACK

“-40dB”-40dBv

Straight
XLR Cable

Straight
3.5mm to
3.5mm
Cable

The above chart represents only a small fraction of the possibilities thatexist when interfacing to cameras and other audio equipment of every
brand and type. We have tried to list common examples for your use.

20

WARRANTY AND NON-WARRANTY SERVICE
In the unlikely event your DV Promix 3 Mixer requires service, it should be
carefully packed and shipped prepaid to:Professional Sound Corporation
Service Department
28085 Smyth Drive
Valencia, CA 91355 USA
PH 661-295-9395
FAX 661-295-8398
E-mail techsupport@professionalsound.com
Please call before shipping your mixer. We may be able to solve your problem
via the phone. During our 20 years in business, many mixers have been shippedin to us for service with only incorrect switch settings.

WARRANTY:
Complete details of the PSC DV Promix 3 Mixer warranty are given on theenclosed blue warranty registration card. If you did not receive one, pleasecontact your local dealer or call us directly.

21

SPECIFICATIONS
Size:

10.125” x 6.825” x 1.500”(257mm x 173mm x 38mm)

Weight:1lb, 11oz. (0.8Kg)

Temp Range:-4 to +158F (-20 to +70C)

Batteries:

2x 9 Volt Alkaline

External Power:

7 to 16Vdc, 2.5mm pin, center positive

Case Material:

0.040” Aircraft Aluminum

Finish:Semi Matt Black Paint with Grey Silk Screening

Global Gain:

80dB

Freq. Response:

20-20Khz +/-1dB

Signal to Noise:

128dB EIN 150 Ohms

Distortion:

00.1% THD

Low Cut Filter:

80Hz, 150Hz 6dB/Octave

Mic Power:

DYN, 48 PH,

Limiter:

1mS Attack, 100 mS Release
2.7:1 Ratio

Warranty:

6 Months, Limited

Copyright 2006, Professional Sound Corp. This manual and the complete DV
Promix 3 Mixer design is protected under various state, federal and international
copyright and trade secret laws. No portion of this manual or any DV Promix 3
mixer technologies may be reproduced without the specific written permission of
PSC. All rights reserved. This manual and all DV Promix 3 Mixer specifications
subject to change without notice.

22

CE
DECLARATION OF CONFORMITY
EMC: This product is in compliance with the Electromagnetic Compatibility
Directive, 89/336/EEC as defined in EN 50081-1, EN55022 and EN 50082-1.
IEC801-2, IEC801-3 and IEC801-4.

LVD: This product is in compliance with the requirements of the Low Voltage
Directive, 73/23/EEC. 93/68/EEC as defined in EN60065, 1993 and/or
EN60950/A1/A2/A3: 1995

TRADE NAME:
MODEL:PSC
DV ProMix 3 Audio Mixer

RESPONSIBLE PARTY:
28085 Smyth Drive
Valencia, CA 91355 USA

Professional Sound Corp.

CONTACT PERSON:

Ronald Meyer(661) 295-9395

TYPE OF PRODUCT:

Audio Mixer

MANUFACTURER:

Professional Sound Corp.
28085 Smyth Drive
Valencia, CA 91355 USA

We hereby declare that the equipment bearing the trade name and model number
listed above has been tested in accordance with the requirements contained in theabove listed directives. All necessary steps have been taken and are in force toassure that production units manufactured will conform to Directive guidelines.
January 2004

Professional Sound Corporation.

23