American Audio Mixer Q2422SX User Manual

							 REAR PANEL - CONTROLS AND FUNCTIONS
©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 11
25. GND (GROUND TERMINALS) - 
Connect the ground lead of the turntables with these terminals. This will reduce humming and pop-
ping noises. There are two convenient ground terminals located on the rear of the mixer.
26. AC VOLTAGE SELECTOR - 
Select  between  115V/50Hz  or  230V/60Hz.  Make  sure  that  the  selector  is  set  to  the  proper  voltage 
you are using.
27.  AC CONNECTION - 
This connection is used for your detachable AC power cord. Be sure to only plug your unit in to the 
recommended power supply.
28. BALANCED XLR MASTER OUTPUTS - 
The  Master  Output  includes  a  pair XLR  BALANCED  JACKS  as  well  as  a  pair RCA  UNBALANCED 
JACKS (31). The 3-pin XLR jacks send a high current balanced output signal. These jacks should be 
used when you will be driving an amp or other audio equipment with a balanced input, or whenever 
you will be running a signal line greater than 15 feet.
29. LIGHT CONTROL OUTPUT - 
This  jack  provides  a  preset  mono  audio  output  signal.  There  is  no  way  to  adjust  this  level,  however 
this level will directly reflect the output level of the CHANNEL SLIDERS (6). This buffered audio out-
put  should  only  be  used  with  light  controllers  that  can  accept  an  external  audio  input  signal.  Great 
for Touch Panels and Chase Controllers.
30. PLAYER CONTROL - 
These jacks are used to input 1/8" mono mini plugs from a compatible American Audio "Q" series CD 
players also featuring Fader “Q” Start. This feature is used to remote control a CD player. By moving 
the mixer crossfader (30) from left to right you can start and pause a "Q" series compact disc player. 
In  other  words,  when  the  mixer  crossfader  is  to  the  left,  and  you  move  it  at  least  20%  to  the  right, 
any  player  connected  to  the "B"  PLAYER  CONTROL  will  begin  to  play.  When  the  crossfader  is  to 
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							©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 12
the right, and you move it at least 20% to the left position, any player connected to the "A" PLAYER 
CONTROL will begin to play. You can create great effects similar to scratching with this feature. 
31. RCA MASTER OUTPUTS - 
The Master Output includes a pair XLR BALANCED JACKS (28) as well as a pair RCA UNBALANCED 
JACKS.  The  RCA  jacks  send  a  low  current  unbalanced  output  signal.  These  jacks  should  only  be 
used  for  shorter  cable  runs  to  signal  processors  or  looping  to  another  mixer.  For  cable  runs  greater 
than 15 feet use the XLR BALANCED JACKS (28).
32. ZONE LEVEL OUTPUTS - 
The  RCA  jacks  send  a  low  current,  unbalanced  output  signal.  These  jacks  should  only  be  used  for 
shorter cable runs to signal processors or looping to another mixer. 
33. REC OUT - 
This  is  a  low  current  unbalanced  output  source  designed  for  various  tape  and  CD  recorders.  The 
Record Out (REC OUT) level is dictated by the CHANNEL FADER LEVEL (6), it is not influenced by 
the MASTER VOLUME CONTROL (13).
34.  CHANNEL 3 - LINE 3/ LINE 4 RCA INPUT JACKS - 
Connect  CD  players  or  Tape  Decks  to  these  line  level  inputs.  Line  level  musical  instruments  with 
stereo  outputs  such  as  Rhythm  Machines  or  Samplers  should  also  be  connected  to  LINE  inputs. 
Turntables  should  only  be  connected  to  "Phono"  inputs.  The  red  colored  RCA  jack  represents  the 
right channel input and the white represents the left channel input. 
35.  CHANNEL 2 JACKS - 
   PHONO 2/AUX2 INPUT JACKS - The type of input must directly reflect the selected mode of  
   the CHANNEL 2 - LINE LEVEL SELECTOR SWITCH (36). Connect turntables equipped with  
   MM pickup cartridge to PHONO inputs (All DJ turntable use MM pick-up cartridges). CD 
   players or Tape Decks and other line level instruments may be connected to these jacks as long 
   as the CHANNEL 2 - LINE LEVEL SELECTOR SWITCH (36) is in the "AUX 2" position. The 
   red colored RCA jack represents the right channel input and the white represents the left    
   channel input.       
   LINE 2 RCA INPUT JACKS - Connect CD players or Tape Decks to these line level inputs. Line
   level musical instruments with stereo outputs such as Rhythm Machines or Samplers should 
   also be connected to LINE inputs. Turntables should only be connected to "Phono" inputs. The
   red colored RCA jack represents the right channel input and the white represents the left 
   channel input. 
36.  LINE LEVEL SELECTOR SWITCH - 
   CHANNEL 1 - This switch is used to change the mode of CHANNEL 1 - PHONO 1/AUX1  
   INPUT JACKS. When connecting turntable to these jacks be sure the switch is in the PHONO 
   position, and when using line level input devices select AUX. Always be sure main power is 
   shut off before change the position of the Line Level Selector Switch.
      CHANNEL 2 - This switch is used to change the mode of CHANNEL 2 - PHONO 2/AUX2  
   INPUT JACKS. When connecting turntable to these jacks be sure the switch is in the PHONO 
   position, and when using line level input devices select AUX. Always be sure main power is  
 REAR PANEL - CONTROLS AND FUNCTIONS 
						

							©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 13
   shut off before change the position of the Line Level Selector Switch.
37.  CHANNEL 1 INPUT JACKS - 
   PHONO 1/AUX1 INPUT JACKS - The type of input must directly reflect the selected mode of  
   the CHANNEL 1 - LINE LEVEL SELECTOR SWITCH (36). Connect turntables equipped with 
   MM pickup cartridge to PHONO inputs (All DJ turntable use MM pick-up cartridges). CD 
   players or Tape Decks and other line level instruments may be connected to these jacks as long 
   as the CHANNEL 1 - LINE LEVEL SELECTOR SWITCH (36) is in the "AUX 1" position. The 
   red colored RCA jack represents the right channel input and the white represents the left 
   channel input.      
   LINE 1 RCA INPUT JACKS - Connect CD players or Tape Decks to these line level inputs. 
   Line level musical instruments with stereo outputs such as Rhythm Machines or Samplers
    should also be connected to LINE inputs. Turntables should only be connected to "Phono" 
   inputs. The red colored RCA jack represents the right channel input and the white represents  
   the left channel input. 
38.  MIC 2 INPUT JACK - 
This  jack  is  used  to  a  connect  a  microphone  to  the  mixer.  Connect  you  mic  to MIC  2 via  1/4  inch 
(6.3mm) jack. The signal level will be controlled by the MIC 2 VOLUME CONTROL KNOB (18). BASS 
(9), MID (9), and TREBLE (9) levels can be adjusted.
 REAR PANEL - CONTROLS AND FUNCTIONS 
						

							©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 14
 SET-UP INSTRUCTIONS
Figure 3
2 Hot (+ data)
3 Negative (- data)1 Ground/Return/ 0v)
1
2
3
Male XLR Pin Configuration:
Connections (Refer to the diagrams on pages 15 & 16)
 Before you connect the unit's main power supply, be sure local voltage matches that of the required 
mixer  voltage. Remember the mixer can be selected to operate with either 115v or 230v. Operational 
can be  changed by the VOLTAGE SELECTOR (26) on the rear of the unit. 
Be sure the power switch is in the OFF position before making any type of connections to the mixer. 
Also be  sure the power on all units being connected to the mixer have been switched off. 
Before switch the power on the mixer be sure MASTER VOLUME (13) is turned down and the power 
switch to  all your amplifier are in  the "OFF" position.
Connect the mixers MASTER OUTPUT JACKS (31) to your audio system. Make sure that the chan-
nels  are  set  properly.  When  using  the BALANCED  OUTPUT  JACKS  (30)  be  sure  your  cable  follow 
the above Pin Configuration (Figure 3). 
For recording, connect your tape recorder or cassette deck to the REC OUT JACKS (33). The Record 
Out level  will  not  be  influenced  by  the MASTER  VOLUME  CONTROL  (13).  The  Record  Out  (REC 
OUT) level is  dictated by the CHANNEL FADER LEVEL (6).
Connect a microphone to any of the two available MIC INPUT JACKS (15 & 38). 
 You  can  connect  2  turntables  using  the PHONO  1  (37) or PHONO  2  (35) RCA  jacks  on  the  rear 
panel. The mixer will only accept turntable level signal if the LINE LEVEL SWITCHES (36) are in the 
"PHONO" position. 
Connect  your  tape  recorder,  tuner,  sound  effects,  CD  player,  and  cassette  decks  etc.  to  the  RCA 
LINE LEVEL  INPUT JACKS on the rear panel. CD players, cassette decks and other line level instru-
ments may also be connected to the PHONO RCA JACKS as long as the LINE LEVEL SWITCHES 
are in the "AUX" position.  
INPUTS/OUTPUTS:
OUTPUTS:
The Q-2422/SX allows you two types of output connectors BALANCED XLR (28) and UNBALANCED 
RCA (31, 32, & 33). Use these connection to connect the output signal from your mixer to the inputs 
of a cross-over, EQ, or other type processor. A balanced connection is recommended for cable runs 
longer  that  15  feet.  When  constructing  your  own  XLR  cables  follow  the  pin  configuration  describe 
below  for  proper  connectivity.  For  cable  runs  shorter  than  15  feet  you  may  choose  the  RCA  unbal-
anced  output  option.  The  unbalanced  output  option  may  be  more  convenient  for  most  users  due  to 
the abundant supply of prefabricated RCA cables on the market.
INPUTS:
All the input options on the mixer are unbalanced RCA's. For best results do not use cable run longer 
than 15 feet for any incoming audio source, longer cable runs will result in inferior sound quality.    
						

							Typical Mixer Set-Up (Inputs)
This image details a typical DJ Set Up consisting of a microphone, turntables, CD players, and a tape deck.
Note: Turntables can only be connected to the PHONO LEVEL RCA JACKS (37, 35). Be sure the LINE 
LEVEL SELECTOR SWITCHES (36) are in the "PHONO" position when using turntables. 
©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 15
 SET-UP INSTRUCTIONS
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							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 amplifier.  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 (Output)
Figure 9
©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 16
 SET-UP INSTRUCTIONS 
						

							©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 17
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 designed to only fit one way, so don't worry about the connec- 
   tors 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, mois-
ture or dust! There should not be any cables lying around. Doing so endangers you as well as oth-
ers. Do not operate the mixer in extremely hot (more than 30°C/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 per-
sons 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 DETERMINATIONS
 CROSSFADER REPLACEMENT INSTRUCTIONS 
						

							Technical Specifications - Model Q-2422/SX
Model: Q-2422/SX™, 2 Channel Mixer
Power supply: AC 115/230V, 50/60Hz selectable
Dimensions: 19” W x 7” D x 2.25” H / 482x 176x 65mm
Weight: 8.5 lbs. / 3.8 kg
Crossfader: FF-Plus - Optical detecting faders start control - Low grounding impedance crossfader
Power Consumption: 5W typical, 7W w/ full headphone output
Headphone impedance: 16 Ohms
Input Sensitivity (Level/Impedance):
Line: -14dBV (200mV) 12K Ohm +/- 2dB
Microphone: -49 dBV (3.6mV / 3K Ohms +/- 3 dB
Phono: -48dBV (4mV) 47K Ohms +/- 3dB
Aux: -14 dBV (200mV) / 47K Ohms +/- 2dB
Output Sensitivity (Level/Impedance):
Rec Out (RCA): -10dBV (316mV) / 2.2K Ohms +/- 2dB
Master Out (RCA): 0dBV (1V) / 610 Ohms +/-2dB
Phones (Load+32 Ohms): -8dBV (0.4V) /33 Ohms +/-2dB
Maximum Output (Load = 47K, THD = 5%)
Rec: < 18dBV (8V)
Master (RCA): < 18dBV (8V)
Balanced (XLR): < 18dBV (8V)
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 0.2%
Phono (Load = 32K Ohms): Less than 0.5%
Channel Equalizer:
Bass: +12 ± 1dB, -22 ± 2 dB at 70KHz 
Mid: +12 ± 1dB, -27 ± 2 dB at 1KHz 
Treble: +13 ±1dB, -17 ± 2 dB at 13KHz
Microphone Equalizer:
Bass: +12 ± 1dB, -12 ± 1 dB at 100KHz  
Treble: +12 ± 1dB, -12 ± 1 dB at 10KHz
NOTES:
The specifications are subject to change to any improvement by negotiations in advance.The parts are subject to change to any improvement within the range of the specifications.
©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 18
 TECHNICAL SPECIFICATIONS 
						

							2-YEAR LIMITED WARRANTY
A. American Audio® hereby warrants, to the original purchaser, American Audio® products to be free 
of manufacturing defects in material and workmanship for a period of 2 Year (730 days) from the date 
of purchase. This warranty shall be valid only if the product is purchased within the United States of 
America, including possessions and territories. It is the owner’s responsibility to establish the date and 
place of purchase by acceptable evidence, at the time service is sought. 
B. For warranty service, send the product only to the American Audio® factory. All shipping charges 
must be pre-paid. If the requested repairs or service (including parts replacement) are within the terms 
of  this  warranty,  American  Audio®  will  pay  return  shipping  charges  only  to  a  designated  point  within 
the United States. If the entire instrument is sent, it must be shipped in its original package. No acces-
sories should be shipped with the product. If any accessories are shipped with the product,  American  
Audio®  shall  have no liability whatsoever for loss of or damage to any such accessories, nor for the 
safe return thereof.  
C. This warranty is void if the serial number has been altered or removed; if the product is modified in 
any manner which American Audio® concludes, after inspection, affects the reliability of the product; 
if the product has been repaired or serviced by anyone other than the American Audio® factory unless 
prior  written  authorization  was  issued  to  purchaser  by  American  Audio®;  if  the  product  is  damaged 
because not properly maintained as set forth in the instruction manual. 
D. This is not a service contract, and this warranty does not include maintenance, cleaning or peri-
odic  check-up.  During  the  period  specified  above,  American  Audio®  will  replace  defective  parts  at 
its  expense,  and  will  absorb  all  expenses  for  warranty  service  and  repair  labor  by  reason  of  defects 
in  material  or  workmanship.  The  sole  responsibility  of  American  Audio®  under  this  warranty  shall  be 
limited  to  the  repair  of  the  product,  or  replacement  thereof,  including  parts,  at  the  sole  discretion  of 
American Audio®. All products covered by this warranty were manufactured after January 1, 1990, and 
bear identifying marks to that effect. 
E. American  Audio®  reserves  the  right  to  make  changes  in  design  and/or  improvements  upon  its 
products without any obligation to include these changes in any products theretofore manufactured. 
F. No warranty, whether expressed or implied, is given or made with respect to any accessory sup-
plied  with  products  described  above.  Except  to  the  extent  prohibited  by  applicable  law,  all  implied 
warranties  made  by  American  Audio®  in  connection  with  this  product,  including  warranties  of  mer-
chantability or fitness, are limited in duration to the warranty period set forth above. And no warranties, 
whether  expressed  or  implied,  including  warranties  of  merchantability  or  fitness,  shall  apply  to  this 
product after said period has expired. The consumer’s and or Dealer’s sole remedy shall be such repair 
or replacement as is expressly provided above; and under no circumstances shall American Audio® be 
liable for any loss or damage, direct or consequential, arising out of the use of, or inability to use, this 
product.  
G.  This warranty is the only written warranty applicable to American Audio® Products and supersedes 
all prior warranties and written descriptions of warranty terms and conditions heretofore published. 
  WARRANTY
©American Audio® - www.AmericanAudio.com - Q-2422/SX  User Instructions page 19 
						

							American Audio World Headquarters:
4295 Charter Street Los Angeles, CA 90058 USA
Tel: 323-582-2650  Fax: 323-582-2610
Web: www.AmericanAudio.com  E-mail: 
[email protected]