American Audio Mixer QMX2BPM User Manual

							
Typical Balanced Output Set-up
This image details a typical stereo output layout. Note the use of the Balanced XLR Jacks on both the 
mixer and the amplifi er.  Always use the balanced output jacks whenever possible. The balanced output 
jacks should always be used for cable runs in excess of 10 feet. 
Using the balanced jacks will ensure a clean signal through out the entire audio system.
Typical Stereo Set-Up
LOUDSPEAKERLOUDSPEAKER
Figure 9 
						

							
American Audio - www.americanaudio.us - Q-MX2 BPM  User Instructions page 12
The crossfader is Hot Swappable which means it may be replaced at any time, even when power is 
applied. Only replace with American Audio Part Feather Fader Plus. Replacing with any other model 
fader may seriously damage your unit.
Replacing the Crossfader
1.  Disconnect the mixers main power supply
2.   Using a number two Phillips screw driver, unscrew the each of the stainless steel retain screws 
   that hold the crossfader in place.
3.     Gently remove the crossfader from its seated position. You may need to wiggle the crossfader  
   slightly to remove it.
4.     After removing the crossfader, disconnect the ribbon cable that attaches the crossfader to the 
   PC board. Grasp the crossfader by its base and pull the ribbon cable by its connector not the 
   actual cables. The connector is desired to only fit one way, so don't worry about the connectors 
   orientation. 
5.     Connect the new crossfader to the ribbon cable and replace in reverse order.
Operating Determinations
When installing this mixer, please make sure that the device is not exposed to extreme heat, moisture or dust! 
There should not be any cables lying around. Doing so endangers you as well as others. Do not operate the 
mixer in extremely hot (more than 30 ° / 100 °F) or extremely cold (less than 5 °C / 40 °F) surroundings. Keep 
away from direct sunlight and heaters.
Operate the mixer only after becoming familiar with its functions. Do not permit operation by persons not 
qualified for operating the mixer. Most damages are the result of unprofessional operation!
Never use spray cleaners to clean the faders! Never use solvents or abrasive detergents to clean the mixer! 
It is recommended that you use a soft damp cloth. Please consider that unauthorized modifications on the 
device are forbidden due to safety reasons!
 OPERATING INSTRUCTIONS
 CROSSFADER REPLACEMENT INSTRUCTIONS 
						

							
Warranty & Service:
The Q-MX2 BPM has a 2-year limited warranty.  Please mail in warranty card as soon as possible to 
validate your warranty. 
For any service related issues please contact American DJ customer support at (800) 322-6337, Moday through 
friday 9:00 am to 5:00 pm Pacific Standard Time, or contact us on the web at [email protected].
Technical Specifications - Model Q-MX2 BPM
Model:    Q-MX2 BPM, 3 Channel Mixer
Power supply:      AC 115/230V, 50/60Hz switchable
Dimensions:       11" W x 12.25" D x 3" H 
Weight:        8 lbs. / 3.5 kg
Crossfader:     Optical detecting fader start control - Low grounding impedance crossfader
Power Consumption:    5W typical, 7W w/ full headphone output
Headphone impedance:    16 Ohms
Input Sensitivity (Level/Impedence):
Line:      -14 dBV (200mV) / 12K Ohm +/- 3dB
Microphone:       -59 dBV (1.2mV) / 3K Ohms +/- 3dB
Phono:        -51 dBV (2.8mV) / 47K Ohms +/- 3dB
Aux:          -14 dBV (200mV) / 47K Ohms +/- 2dB
Output Sensitivity (Level/Impedence):  Note: 0dBV=1Vrms
Rec Out (RCA):     -10dBV (316mV) / 1K Ohms +/-3dB
Master Out (RCA):      0dBV (1V) / 560 Ohms +/- 3dB
Master Out (XLR):      0dBV (1V) / 470Ohms +/- 3dB
Phones (Load=32 Ohms):   -2dBV (0.4V) /33 Oms +/-32dB
Maximum Output (Load + 47K, THD = 5%)
Rec:      < 18dBV (8V)
Master (RCA):      < 18dBV (8V)
Master (XLR):      < 18dBV (8V)
PHONES (Load=32 ohms):   < 6dBV (2V)
Channel Balance:  Within 3dB
Frequency Response:
Line:          20Hz - 20KHz, ± 1dB 
Phono:       20Hz - 20KHz, ± 1.5dB (RIAA) 
Aux:      20Hz - 20KHz, ± 1dB
Microphone:       20Hz - 20KHz, +1,-3dB
THD - Total Harmonic Distortion (1Khz, 0dBV Output):
Master Output (Load = 47K Ohms):    Less than 0.3%
Phono:  (Load = 32K Ohms):      Less than 0.3%
Cross Talk:  < 40dB @ 1Khz between lef and right channels
Channel Equalizer:
Bass =        +12 ± 1dB, -22 ± 2 dB at 70KHz  
Mid =        +12 ± 1dB, -17 ± 2 dB at 1KHz   
Treble =       +13 ± 1dB, -27 ± 2 dB at 13KHz
American Audio - www.americanaudio.com - Q-MX2 BPM  User Instructions page 13
 TECHNICAL SPECIFICATIONS