American Audio Mixer Q2422 MKII User Manual

							
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 11
 Q-2422  MKII™
                         FRONT PANEL - CONTROLS AND FUNCTIONS CONT.
20
. Q-START ON/OFF  BUTTON - This function works in conjunction with a compatible American DJ® 
or  American  Audio
®  “Q”  Start  CD  player.  When  used  with  a  compatible  CD  player,  you  can  use  the 
crossfader to start and stop a CD Player with the slide of the mixer’s  CROSSFADER (
22). The ON/OFF 
“Q" START  BUTTTON activates the FADER “Q" START feature. When in the ON position (GREEN LED 
WILL BE LIT)
, the FADER “Q" START automatically returns the CD player to the preset CUE POINT.
  For example; Assuming you have two compatible American Audio™ CD players or a
 compatible dual CD player connected to channels one and two. When the Fader "Q" Start     
 option is turned on, sliding the crossfader to the far left position will trigger playback on CD    
 player 1. When the crossfader is pushed to the far right position, playback on CD player 2 will 
 begin, and CD player 1 will return to the cue position. Refer to your American Audio CD player    
 user manual for setting CUE POINTS. Turn the ON/OFF BUTTON to the OFF position (RED    
  LED IS NOT LIT)
 to disengaged “Q” Start function and resume to a normal fader.
21. FADER ASSIGN SWITCH -  This is a four position switch that assigns a channel to the CROSS-
FADER  (
22).  When  a  channel  is  assigned  to  the  left  side  of  the  CROSSFADER  (22)  that  channels 
output level is routed to and controlled by the
  CROSSFADER (22). Sliding the CROSSFADER (22) to 
left position will send 
the  volume output  of the assigned channel to the MASTER VOLUME LEVEL (17), 
siding  the  CROSSFADER  (22) to  right  position  will  cut  that  channels  volume  to MASTER  VOLUME 
LEVEL (
17).  The reverse is true for the right channel fader assign switch. When the assign switch  is set 
to the "OFF" position the crossfader will have no function.
22.  FEATHER FADER PLUS CROSSFADER - This fader is used to blend the output signals of chan-
nels one and two together. When the fader is in the full left position (channel 1), the output signal of 
channel one will be controlled by the master volume level. The same fundamentals will apply for chan
-
nel  two.  Sliding  the  fader  from  one  position  to  another  will  vary  the  output  signals  of  channels  one 
and two respectively. When the crossfader is set in the center position, the output signals of both the 
channels one and channels two will be even.
23 . CHANNEL VOLUME FADER -
 These faders are used to control the output signal of any source 
assigned  to  its  particular  channel.  However,  master  volume  is  controlled  by  the
  MASTER  VOLUME 
CONTROL (17).
24
. MIC 2 VOLUME CONTROL - This knob controls the output volume of MICROPHONE 2 (28).
However, master volume is controlled by the MASTER VOLUME CONTROL (17).  
25
. MIC 1 VOLUME CONTROL - This knob controls the output volume of MICROPHONE 1 (2).
However, master volume is controlled by the MASTER VOLUME CONTROL (17).
26
.  TALKOVER CONTROL -  This function decreases all signal output except the  microphone signal. 
The amount of decrease is preset to -14dB and is not user selectable.  
						

							
SERIALNO:MODELNO:Q-2422POWERSOURCE:115/230V~50/60Hz13WMKII
MADEINCHINA
MINMAXTRIMOUTPUT
AB
BOOTH

©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 12
 Q-2422  MKII™
                            REAR PANEL - CONTROLS AND FUNCTIONS
27. GND (GROUND TERMINAL) -  Be sure to connect turntable ground leads to either or both of the 
two available ground terminals. This will reduce the humming and popping noises associated with 
magnetic phono cartridges.
28 .  MICROPHONE  2  CONNECTOR  - This  jack  is  used  to  a  connect  a  microphone  to  the  mixer. 
Connect you microphone via this 1/4 inch (6.3mm) jack.  The volume output level for this 
microphone 
will be controlled by its own respective CHANNEL KNOB (24).
29 .  CHANNEL  LINE LEVEL SELECTOR SWITCHES -  These switches are used to change the volt
-
age line levels of there respected  Phono / Aux RCA inputs jacks. When connecting turntables with 
magnetic  cartridges  to  these  jacks  be  sure  the  corresponding  switch  is  in  the  “PHONO”  position, 
and when using line level input devices be sure this switch is in the “AUX” position. Always be sure 
main power is shut off before change the position of the Line Level Selector Switch.
30 . CHANNEL 1: PHONO 1/AUX 1 INPUT -  The type of input must directly reflect the selected  mode 
of the
 LINE LEVEL SELECTOR SWITCH (29). Turntables equipped with MM pickup cartridge (All DJ 
turntable use MM pick-up cartridges) may be connected to these jacks as long as the  LINE LEVEL 
SELECTOR SWITCH (29)  is in the “PHONO 1” position. CD players, Tape Decks and other line level 
instruments may only be connected to these jacks as long as the  LINE LEVEL SELECTOR SWITCH 
(29)
  is  in  the  “AUX  1”  position.  Never  connect  line  level  instruments  (CD  players,  tape  decks,  etc.) 
to these jacks when the  LINE LEVEL SELECTOR SWITCH (29)  is in the “PHONO 1” position, THIS 
MAY  SERIOUSLY  DAMAGE  YOUR  MIXER!  The  red  colored  RCA  jack  represents  the  right  channel 
input and the white represents the left channel input. Input volume will be controlled by the channel 
on
e  fader . The channel SOURCE SELECTOR SWITCH (3)  must be in the "Phono 1/Aux 1" position, 
to monitor any source connected to these jacks.
     
  CHANNEL  1:  LINE  1  INPUT  JACKS  -   DO  NOT  CONNECT  TURNTABLES  TO  THESE  JACKS! 
CD players, Tape Decks and other line level instruments may be connected to these jacks. The red 
colored RCA jack represents the right channel input and the white represents the left channel input. 
Input volume will be controlled by channel  one
 fader . The channel SOURCE SELECTOR SWITCH (3) 
must be in the "Line 1" position, to monitor any source connected to these jacks.
31 . CHANNEL 2: PHONO 2/AUX 2 INPUT -  The type of input must directly reflect the selected mode 
of the
 LINE LEVEL SELECTOR SWITCH (29). Turntables equipped with MM pickup cartridge (All DJ 
turntable use MM pick-up cartridges) may be connected to these jacks as long as the  LINE LEVEL 
SELECTOR SWITCH (29)  is in the “PHONO 2” position. CD players, Tape Decks and other line level 
instruments may only be connected to these jacks as long as the  LINE LEVEL SELECTOR SWITCH 
(29)
  is  in  the  “AUX  2”  position.  Never  connect  line  level  instruments  (CD  players,  tape  decks,  etc.) 
to these jacks when the  LINE LEVEL SELECTOR SWITCH (29)  is in the “PHONO 2” position, THIS 
27
3129302928403938373635343332 
						

							
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 13
 Q-2422  MKII™
                             REAR PANEL - CONTROLS AND FUNCTIONS CONT.
MAY  SERIOUSLY  DAMAGE  YOUR  MIXER! 
The  red  colored  RCA  jack  represents  the  right  channel 
input and the white represents the left channel input. Input volume will be controlled by the channel 
two
  fader . The channel SOURCE SELECTOR SWITCH (3)  must be in the "Phono 2/Aux 2" position, 
to monitor any source connected to these jacks.
          CHANNEL  2:  LINE  2  INPUT  JACKS  -   DO  NOT  CONNECT  TURNTABLES  TO  THESE  JACKS!
 
CD players, Tape Decks and other line level instruments may be connected to these jacks. The red 
colored RCA jack represents the right channel input and the white represents the left channel input. 
Input volume will be controlled by channel  two
 fader . The channel SOURCE SELECTOR SWITCH (3) 
must be in the "Line 2" position, to monitor any source connected to these jacks.
32.   CHANNEL  3:  LINE  3  INPUT  JACKS  -   DO  NOT  CONNECT  TURNTABLES  TO  THESE  JACKS!
 
CD players, Tape Decks and other line level instruments may be connected to these jacks. The red 
colored RCA jack represents the right channel input and the white represents the left channel input. 
Input volume will be controlled by channel three
  fader . The channel SOURCE SELECTOR SWITCH 
(3)  must be in the "Line 3" position, to monitor any source connected to these jacks.
          CHANNEL  3 :  LINE  4  INPUT  JACKS  -  DO  NOT  CONNECT  TURNTABLES  TO  THESE  JACKS!
 
These  Jacks  are  used  for  line  level  inputs.  Connect  CD  players  or  Tape  Decks  to  line  level  inputs. 
Line  level  musical  instruments  with  stereo  outputs  such  as  Rhythm  Machines  or  Samplers  should 
also be connected to line level inputs. The red colored RCA jack represents the right channel input 
and the white represents the left channel input. Input volume will be controlled by the channel  three
 
fader
.  The  channel SOURCE  SELECTOR  SWITCH  (3) must  be  in  the  "Line  4"  position,  to  monitor 
any source connected to these jacks.
 
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 (23),  it is not 
influenced by the  MASTER VOLUME CONTROL (17).
34. ZONE LEVEL OUTPUT -  Use this separate output signal to drive a booth monitor or separate 
sound  system.  The  output  level  for  these  jacks  will  be  controlled  by  the
  ZONE   VOLUME  KNOB 
(13).  These RCA jacks send a low current, unbalanced output signal. These jacks should only be 
used for shorter cable runs  (under 15 feet) to signal processors or looping to another mixer.
 
35 .  RCA  MASTER  OUTPUTS  -  The  Master  Output  includes  a  pair
 XLR  BALANCED  JACKS  (38) 
as well as a pair of RC A 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 (38).
36 . PLAYER CONTROL - 
  PLAYER A CONTROL -  This jack is used to control the “Q-Start” function between the mixer 
and  a  compatible  American  Audio
®  or  American  DJ®  CD  Player.  Using  the  mini  plug  included  with 
your CD player, connect from the CD player controller out jack to this jack. Player A “Q-Start” func
-
tionallity  will  be  controlled  by  the  left  side  (X)  of  the  CROSSFADER  (22).  For  more  information  on 
“Q-Start” functionallity refer to the user manual included with your CD player.  Be sure to only use 
the  mono  tip  mini  plug  included  with  your  CD  player  to  avoid  damage  to  the  mixer  and/or  the  CD 
player.
  PLAYER B CONTROL -  This jack is used to control the “Q-Start” function between the mixer 
and  a  compatible  American  Audio
®  or  American  DJ®  CD  Player.  Using  the  mini  plug  included  with 
your CD player, connect from the CD player controller out jack to this jack. Player B “Q-Start” func
-
tionallity will be controlled by the right side (Y) of the  CROSSFADER (22). For more information on 
“Q-Start” functionallity refer to the user manual included with your CD player.  Be sure to only use  
						

							
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 14
 Q-2422  MKII™
                             REAR PANEL - CONTROLS AND FUNCTIONS CONT.
the  mono  tip  mini  plug  included  with  your  CD  player  to  avoid  damage  to  the  mixer  and/or  the  CD 
player.
37
. TRIM OUTPUT -  This knob is used to adjust the maximum voltage output level. Output voltage 
wil range from 0v ~ 9v. This function may be used to limit the maximum siganl output level.
38 .  BALANCED  XLR  MASTER  OUTPUTS  JACKS  -  The  Master  Output  includes  a  pair  of  XLR 
Balanced  jacks  as  well  as  a  pair  of  RCA  UNBALANCED  JACKS  (34)
.  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. Always, use these jacks whenever possible.
 
39 .  AC  CONNECTION  -  This  connector  is  used  to  supply  main  power  to  the  unit  via  the  included 
detachable power cord.  The power connection uses an I.E.C. type connector,  use only the supplied, 
polarized  AC  power  cord.   Use  only  a  power  cord  that  matches  this  type  of  connection.  Be  sure  to 
only c onnect  this unit  to a power outlet  that matches the printed power label on the unit . Never use 
a power cord when  the ground prong has been removed or broken off . The ground prong is used to 
reduce  the  risk  of  electrical  shock  in  case  of  an  electrical  short.  This  cord  is  designed  to  fit  in  one 
direction  only.  Do  not  attempt  to  force  a  cord  if  it  does  not  fit,  be  sure  the  cord  is  being  inserted 
properly.
40 .  AC  VOLTAGE  SELECTOR  -  This  switch  is  used  to  change  the  operating  voltage.  Operating 
voltage  can  be  toggled  between  115v    or  230v/50~60Hz.  Be  sure  the  selector  is  set  to  the  proper 
voltage for your area before attempting to operate the unit. Always be sure main power is shut off 
before change the position of the Voltage Selector Switch. 
						

							
SERIALNO:MODELNO:Q-2422POWERSOURCE:115/230V~50/60Hz13WMKII
MADEINCHINA
MINMAXTRIMOUTPUT
AB
BOOTH

©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 15
C A S S E T T E   D E C K
TURNTABLE
TURNTABLE
T R A NS
E C H O
S C R A T C H F L AN G E RP ARA M E T ER S G
L / C TN
T I M E A UT O C UE
S A M P L E P I T CH
C U E1   2   3   4   5   6   7   8   9    0R E L O O PS I N G L EL O O PR E M A I NT O T ALE L A PS EDMTS.FP I T CHC UEA U T O
H OL DE J E C T /
S T O P
8 % /12 % / 1 6% O N / O F F
This image details a typical DJ Set Up consisting of a microphone , turn-
tables, CD players, and a tape deck.
Note: Turntables can only be connected to the PHONO LEVEL RCA 
JACKS (30 & 31). Be sure the LINE LEVEL SELECTOR SWITCHES 
(29) are in the "PHONO" position when using turntables. 
  Q-2422  MKII™
                                                                                                        TYPICAL MIXER SET-UP
AUX/IN 
						

							
SERIALNO:MODELNO:Q-2422POWERSOURCE:115/230V~50/60Hz13WMKII
MADEINCHINA
MINMAXTRIMOUTPUT
AB
BOOTH

©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 16
 Q-2422  MKII™ 
                                                                                                      TYPICAL MIXER SET-UP
Speaker Cables
Balanced XLR male to XLR female Cables
C A S S E T T E   D E C K
American Audio V4000™
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 15 feet. 
Using the balanced jacks will ensure a clean signal through out the entire audio system.
RCA to RCA Patch Cables
AUX/IN 
						

							
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 17
Due to fog residue, smoke, and dust, cleaning the mixer should be carried out periodically to residue 
build up.  
1.   Use normal glass cleaner and a soft cloth to wipe down the outside casing.
2.   Use a cleaner specially designed for electronics to spray in and around the knobs and switch.    
  This will reduce small particle built up that can effect the proper operation of the mixer. 
3.   Cleaning should be carried out every 30-60 days to prevent heavy built up.
4.  Always be sure to dry all parts completely before plugging the mixer in.
Cleaning frequency depends on the environment in which the mixer operates (i.e. smoke, fog residue, 
dust, dew).
The crossfader is “Hot Swapable” 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 mixer.
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 cables that attach the crossfader to the    
       PC board. Grasp the crossfader by its base and pull each of the ribbon cables by its connector   
  not the actual cables. The connector is designed 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.
  Q-2422  MKII™                                                                        CLEANING
  Q-2422  MKII™                                                          CROSSFADER  REPLACEMENT 
						

							
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 18
  Q-2422  MKII™                          TROUBLESHOOTING
Trouble Shooting: Listed below are common problems you may encounter, and solutions.
There is no power to the unit:
1.   Be sure you have connected the power cord to a correct wall outlet.
There is little or no sound:
1.   Check the input selector switch. Make sure it is set to the device that is currently playing.
2.   Check to see if the connection cables are connected properly. 
3.   Check the Trim Output level control on the rear panel, make sure it is not set to low.
The sound is distorted:
1.   Check the Trim Output level control on the rear panel, make sure it is not set to high.
2.   Make sure that the Gain level control is not set to high.
Crossfader is not working:
1.   Check and see if any channels have been assigned to the crossfader. 
						

							
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 19
1-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 1 Year (365 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 prod-
ucts 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 warran
-
ties,  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 her etofore published. 
The Q-2422 MKII™ carries a one year limited warranty. We recommend you fill out the enclosed warranty 
card to validate your purchase. All returned service items whether under warranty or not, must be freight 
pre-paid  and  accompany  a  R.A.  (return  authorization)  number.  If  the  mixer  is  under  warranty,  you  must 
provide a proof of purchase invoice. You may obtain a R.A. number by contacting our customer support 
team on our toll free number. 
Please contact American Audio® customer support  at (800) 322-6337 
for  a  R.A.  number.   All  package  not  displaying  a  R.A.  number  on  the  outside  of  the  package  will 
be  returned  to  the  shipper.
  Q-2422  MKII™                                                                            WARRANTY 
						

							
 TECHNICAL SPECIFICATIONS
Model: Q-2422 MKII 3 Channel Mixer
POWER SUPPLY:
                               AC 115v~60Hz/230v50~60Hz, User Selectable
DIMENSIONS:                          482.6mm (W) x 177mm (D) x 97mm (H)
WEIGHT:
                                 7.49 Lbs. / 3.4Kgs.
CROSSFADER:                               Feather Fader Plus - VCA detecting fader start control - 
                                  Low grounding impedance crossfader
POWER CONSUMPTION:                                        12W typical, 20W w/ full headphone output
HEADPHONE IMPEDANCE:                                        16 Ohms
OPERATING TEMPERATURE:                                       5 to 35 deg. C; Humidity: 25 to 85% RH          
                                                                   (non-condensing); Storage Temperature: -20 to 60 deg. C
Input Sensitivity (Level/Impedence): Note: 0dBV output, load = 100K OHM
LINE, AUX:                                10K OHM / -14dBV (200mV) +/-2dB
PHONO:                      47K OHM / -54dBV (2mV) +/-2dB
MICROPHONE 1:                              2.2K OHM / -54dBV (2mV) +/-2dB
MICROPHONE 2:                                                           2.2K OHM / -60dBV (1mV) +/-2dB
Output Sensitivity (Level/Impedence): Note: 0dBV=1Vrms
MASTER:                     
300 OHM
ZONE:                       
1K OHM / 0dBV (1V) +/-2dB
MASTER OUT (XLR):                    600 OHM / +2.21dBV (1V) +/-2dB
REC OUT (RCA):                              2.2K OHM / -10dBV (316mV) +/-2dB 
PHONES: (LOAD=32 OHMS)                           33 OHM / dBV (1mV) +/-2dB
Maximum Output: (LOAD = 47K, THD = 1%)
MASTER/ZONE:                               MORE THAN +18 dBV (8.0V)
PHONES: (LOAD=32 ohms)                            MORE THAN +4dBV (1.6V)
CHANNEL BALANCE:                                                   WITHIN 3dB 
Frequency Response:
LINE/AUX:                     20 - 20KHz +/-2dB
PHONO:                      20 - 20KHz +2 /-3dB (RIAA)
MICROPHONE:                               20 - 20KHz +2 /-3dB
Noise: (maximum output) JIS-A weighted
LINE/AUX:                     LESS THAN -90dBV
PHONO:                     LESS THAN -66dBV
MIC 1:                       LESS THAN -64dBV
MIC 2:                                  LESS THAN -60dBV
THD - Total Harmonic Distortion: (MASTER = 0dBV OUTPUT, w/ 20KHz LPF):
LINE:                       LESS THAN 0.02% 20 - 20KHz
CROSS TALK: 
                                           (MASTER = 0dBV OUTPUT)
LINE:                                  
MORE THAN 60dB AT 1KHz BETWEEN L AND R
                       MORE THAN 70dB AT 1KHz BETWEEN CHANNELS
Channel Equalizer:
BASS:                       +12 +/-2dB at 70Hz
                   Below -27dB at 70Hz
MID:                       +12 +/-2dB at 1KHz
                   Below -27 at 1KHz
TREBLE:                     +12 +/-2dB at 13KHz
                   -14 +/-3dB at 13KHz
 
Microphone Equalizer:
BASS:                                               +12 +/-2dB at 100Hz, -22 +/-3dB at 100Hz  
TREBLE:                     +12 +/-2dB at 10KHz, -15 +/-3dB at 10KHz
TALKOVER:                      - 14 dB +/- 2dB
©American Audio® - www.AmericanAudio.com - Q-2422 MKII  User Instructions page 20