Azden Mixer FMX 42 User Manual

FMX-42  
INSTRUCTIONS  
4-CHANNEL FIELD MIXER  
Azden Corporation  
147 New Hyde Park Road  
P.O. Box 10  
Franklin Square, NY 11010  
vox 516.328.7500 • fax 516.328.7506  
[email protected]www.azdencorp.com  
Rev. 4  
© Azden Corp. 2007  
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OUTPUTS and SETTINGS  
INTRODUCTION:  
Thank you for purchasingAzdens FMX-42 4-channel field mixer. The FMX-42 has  
many unique features, making it very important to read and understand this manual  
completely before use. Designed to work with most microphones that have a low-  
impedance XLR output or line-level devices, the FMX-42s output can be connected  
to virtually any video camera or audio recorder, which has XLR or mini-connector  
mic/line inputs.  
Monitor LEVELand MONITOR” Output Jack:  
The MONITOR” “LEVEL” (22)adjusts the volume of headphones connected to the  
“MONITOR” output jack (23). Zero is the lowest (quietest) setting, 10 is the highest  
(loudest).  
Monitor SELECT:  
Normally, the monitor SELECT” switch (24) is set to position L/R. In this position  
you will monitor the sound of all connected microphones using stereo headphones.  
If you only want to hear the L” output, use stereo headphones and set the switch to  
position L”. Or, if you only want to hear the R” output, use stereo headphones and  
set the switch to position R. The use of mono headphones is not recommended.  
POWERING THE FMX-42  
Battery Power:  
Make sure the mixer is turned OFF” (2). Remove the battery cover (1) by  
pressing the clip in and then lifting up and removing the cover from the unit. Install 6  
fresh AA” ALKALINE batteries following the polarity diagram inside the battery  
compartment. Do not force the batteries. When all 6 batteries are installed, replace  
the battery cover and move the power switch (2) to the BATT” position. The  
POWER” LED (4) will turn GREEN. When the battery voltage level becomes too  
low for proper operation the POWER” LED will turn RED. When this happens  
replace the batteries with fresh, new AA” ALKALINE batteries.When not in use,  
turn the mixer POWER” switch (2) to OFF” to conserve battery life.  
“OUTPUT” “L” and R:  
Connect a cable from OUTPUT” “L” (14) and/or OUTPUT” “R” (15) to the micro-  
phone or line input of your video camera or audio recorder. These outputs accept  
a standard 3-pin female XLR connector equipped cable. Push the cable connector  
into the output jack until it locks. To remove the connector press the release tab on  
the connector and pull the connector out.  
“OUTPUT” “LEVEL” Settings:  
Select the OUTPUT” “LEVEL” (26) that is best-suited for your video camera or  
audio recorder. The +4 dBu” setting is for line-level audio inputs and the -36 dBu”  
setting is for a microphone-level audio input.  
External Power:  
The FMX-42 can be powered from an external power supply. After attaching the  
power supply to an active 110VAC source and to the EXT DC IN” jack (3) on the  
FMX-42, move the power switch (2) to the EXT” position. The POWER” LED (4)  
will turn green. When not in use, turn the mixer POWER” switch to OFF” and  
disconnect the power supply from the mixer.  
STEREO” Mini-Connector Output:  
The STEREO” mini-connector (3.5 mm) output (25) is designed for video cameras  
or audio recorders which have mini-connector microphone-level inputs.This output  
is stereo (dual-channel) and unbalanced. It is recommended to use a stereo-to-  
stereo mini-cable (not supplied) from the STEREO” mini-connector output to the  
microphone or line-level input of your video camera or audio recorder. Because  
the FMX-42 has low-impedance XLR inputs and a mini-connector output, users of  
mini DV cameras that have mini-connector microphone inputs can now use high-  
quality microphones with XLR outputs.  
Note:The FMX-42 is not supplied with an external power supply.An optional power supply,  
part number BC-26U, is available fromAzdens web site: www.azdencorp.com.  
Wearing the FMX-42:  
The FMX-42 is supplied with a ballistic nylon case. Place the mixer in the case and  
adjust the neck strap to achieve the most comfortable position for you. A back  
harness (not supplied) can be secured to the metal rings on the case for additional  
support and comfort.  
EXTERNAL DC IN”:  
For external powering of the mixer, connect a power supply to this input (3).  
Maximum rating of the power supply should not exceed 12 volts DC, 350mA.  
Azden recommends using its BC-26U.  
INPUTS and SETTINGS  
“INPUT” Channels: CH 1, CH 2, CH 3” and CH 4”  
Connect the output of a microphone, wireless receiver or line-level audio compo-  
nent to INPUT CH 1” (5) and/or CH 2” (5) and/or CH 3” (5) and/or CH 4” (5).  
The inputs accept a standard 3-pin male XLR connector equipped cable. Push the  
connector into the input jack until it locks. To remove the connector, press the  
PUSH” tab (6) and pull the connector out.  
“METER ILLUM:  
Turn this switch (27) ON” to light up the VU Meters and set your audio levels.  
Turn this switch OFF” when not using the meters to conserve battery power.  
4
Illustration numbers:  
1
Shown in the instructions within ( ), these numbers refer to the illustrations on the inside cover.  
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“INPUT LEVEL” Settings: +4”, -30 dBu, -50 dBu”  
PAN” control left will decrease the sound output in the Right channel. Moving the  
PAN” control right will decrease the sound output in the L”eft channel.  
Each input channel of the FMX-42 has its own level setting (7). Select the input level  
that is best suited for the microphone, wireless receiver or line-level audio compo-  
nent that you are connecting to each input. The +4” setting is for line-level audio, -  
30 dBu” and -50 dBu” are both microphone-level settings. For the microphone-  
level settings, start with the -30 dBu” position. If your microphone seems to have too  
much gain (volume) try the -50 dBu” setting.  
“LIMITER” Switch:  
Each INPUT” channel of the FMX-42 has a switchable LIMITER” (16). After  
setting the input LEVEL”, turn this switch to ON”. The “LIMITER” circuit acts as a  
safety and reduces the possibility of overload distortion from very loud sounds  
without affecting normal sound volume. If you prefer the overall sound quality of the  
mixer without the LIMITER” circuit engaged leave the switch OFF”.  
PHANTOM DC48V” Switch:  
Each channel of the FMX-42 has its own PHANTOM DC48V” power setting (8).  
When using a dynamic microphone be sure to turn the corresponding PHANTOM  
DC48Vswitch to the OFF” position. When using a condenser microphone that  
requires 48VDC external power, turn the corresponding PHANTOM DC48V”  
switch to the ON” position. The PHANTOM DC48V” only opterates in the -30  
dBu” and -50” INPUT LEVEL” position  
“HPF” - High Pass Filter:  
Each INPUT” channel of the FMX-42 has a switchable high pass (low cut) filter -  
“HPF” (17). This filter is useful for removing unwanted low frequencies, such as  
wind and air-conditioning noise. For most applications engaging the high pass filter  
will improve overall sound quality.  
WARNING: With the PHANTOM DC48V” power turned ON” the FMX-42 supplies  
48VDC to the microphone. Please make sure that your microphone is designed to  
handle 48VDC or you may damage it. Check the microphones user manual or with  
the manufacturer of your microphone.  
“MASTER” Level Control:  
The MASTER” knob (18) controls the overall volume of all connected sources  
(microphones and/or line-level devices). For the best possible sound and lowest  
noise, try to keep this control set at its midpoint while maintaining the VU meters at  
their 0 dB range with the input LEVELcontrols.  
FRONT PANEL CONTROLS and SETTINGS  
VU Meters - L” and R”  
Input LEVELControls:  
For the best sound, while keeping the MASTER” control at its midpoint, increase or  
decrease each channels LEVEL control (9) until the L” and/or RVU meter (10)  
peaks at 0 dB. If the LEVEL” is set too low, sound may be accompanied by  
background hiss. If the LEVEL” is set too high the sound may be distorted. Monitor  
the sound with headphones and adjust the LEVEL for the best sound.Apeak level  
LED (19) will light RED if your overall levels are set too high.  
Each INPUT” channel of the FMX-42 has an adjustable input LEVELcontrol (9)  
(this is the inner-smaller control). This controls the input volume of the microphone  
connected to each corresponding INPUT”. Zero is the lowest (quietest) setting  
while 10 is the highest (loudest). For the best sound with the lowest noise, increase  
the input level control until the corresponding VU Meter (10) peaks at 0 dB.  
Input PEAK” Level LEDs:  
SLATE MIC”:  
Each INPUT” channel of the FMX-42 has 2 PEAK” level LEDs. These LEDs are  
provided to help set precise input LEVELadjustments. The LEDs are located to the  
left of each input LEVELcontrol. The lower LED (11) indicates the level of the input  
electronically prior to the LEVEL control. The upper LED (12) indicates the level  
electronically after the LEVEL control. The lower LED (11) lighting RED indicates  
that the item attached to the mixers “INPUT” has a signal that is too high and should  
be reduced either by changing the INPUT LEVEL” switch (7) or at the device itself.  
The upper PEAK” level LED (12) should only light RED occasionally. If this LED  
stays lit continuously lower the input LEVEL(9) and/or change your INPUT  
LEVEL(7) settings. These LEDs help reduce signal overload and distortion.  
Press and hold this button (20) to engage the SLATE MIC” (microphone). The  
SLATE MIC” is used to pick up audio at the mixers location and is not intended for  
serious audio recording. It is however, very useful for notating scenes or other on-  
location documentation .  
“1 kHz TONE”:  
Press and hold this button (21) to generate the 1 kHz tone. This output tone is used  
to set the recording levels of your video camera or audio recorder to their optimum  
level. While generating the 1 kHz tone, set the recording levels of your video camera  
or audio recorder to the specified level as recommend in the owners manual. The  
signal is generated at +4 dBu.  
PAN” Controls:  
Each channel of the FMX-42 has an adjustable PAN” control (13) (this is the outer-  
larger control). When the PAN” control is in the center position, an equal amount of  
sound will come from OUTPUT” “L” (14) and OUTPUT” “R” (15) for any micro-  
phone or line-level input connected to the corresponding INPUT”. Moving the  
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