American Audio Mixer QSD User Manual

							
©American Audio®   -   www.americanaudio.us   -   Q-SD Instruction Manual Page 31
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 o\
ther 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 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.
  Q-SD                                                                                                  C LEANING 
  Q-SD                                                                                       C ROSSfADER  REPLACEMENT 
						

							
©American Audio®   -   www.americanaudio.us   -   Q-SD Instruction Manual Page 32
  Q-SD                                                        TROU bLESHOOTING
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. 
  Q-SD                                    ADDING  MUSIC  TO  YOUR  SD  CARD
When adding music to your SD Card, the files must be in Mp3 format. Make a folder for each artist, 
this will make it easier for you to find your desired songs. Using the Folder knob, you can scroll to 
the your desired artist and with the Track knob find your desired song. remember the Q-sD can 
only load a 4GB sD card max. it cannot read or accept a sDhc card, it must be a regular sD 
card. the files must be Mp3 format.
Loading music into your SD Card:
1. Insert your SD Card into your computer. If there is no SD Card slot available, use an SD Card    
    reader and insert the reader into the USB connection on your computer.
2. The SD Card will appear as "Removable Drive" when you access "My Computer".
3. go to Windows Explorer or a similar program and simply "drag and drop" your music onto the SD          
 
    Card (Removable Drive). Music will be recorded onto your SD Card in the same quality originally    
    recored onto your computer. note: remember it is better if you make a folder for each artist,    
 
    and then drop that folder onto your sD card.
4. Once you are finished loading music onto your SD Card, eject the SD Card, and load it into the     
 
    Q-SD. 
						

							
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 cond\
itions heretofore published. 
The  Q-SD  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-SD                                                                                                      wARRANTY
©American Audio®   -   www.americanaudio.us   -   Q-SD Instruction Manual Page 33 
						

							
©American Audio®   -   www.americanaudio.us   -   Q-SD Instruction Manual Page 34
Q-SD                                                                      TECHNICAL SPECIfICATIONS
Model:                      Q-SD 4 Channel Mixer/ SD Player                   
poWer suppLY:                             Dual Voltage:                                      
                       AC 115v~60Hz/230v-50Hz, User Selectable
                      Single Voltage:
                      AC 100V, 50/60Hz (For Japan)
                       AC 110V, 60Hz (For Colombia)
                      AC 120V, 60Hz (For USA, and Canada)
                      AC 127V, 60Hz (For Mexico)
                      AC 220V, 50Hz (For Chile, and Argentina)
                      AC 220V, 60Hz (For Philippines, and korea)
                      AC 230V, 50Hz (For Europe, U.k., New Zealand, South Africa,    
                      and Singapore)
                      AC 240V, 50Hz (For Australia)
DiMensions:                        482.6mm (W) x 177mm (D) x 109.6mm (H)
WeiGht:                                 8.27 Lbs. / 3.75kgs.
crossFaDer:                               Feather Fader Plus - Fader Start Control - 
                                  Low grounding impedance crossfader
poWer consuMption:                                       12W typical, 21W w/ full headphone \
output
heaDphone iMpeDance:                                       16~32 Ohms
operatinG teMperature:                                       5 to 35 deg. C; Humidity: 25 to 8\
5% RH         
                                                                    (non-condensing); Storage Temperature: -20 to 60 deg. C
Input Impedence & Sensitivity: (EQ Flat, Maximum gain, Load = 100k OHM
Line:                       10k OHM / -14dBV (200mV)
auX:                      47k OHM / -14dBV (200mV)
phono:                     47k OHM / -54dBV (2mV)
Microphone:                             10k OHM / -54dBV (2mV)
Output Impedence & Sensitivity
rec out (rca):                             2.2k OHM / -10dBV (316mV) +/-2dB
Master (unBaL):                   1k OHM /0dBV (1V) +/-2dB
Master (XLr):                  600 OHM / +4dBm (1.23V) +/-2dB
Zone:                       1k OHM / 0dBV (1V) +/-2dB
phones: (LOAD=32 OHMS)                          33 OHM / 0dBV (1V) +/-2dB (Cue Mixing At Cent\
er)
Frequency response: (eQ Flat, Maximum Gain)
Line/auX:                     20 - 20kHz +/-2dB
phono:                      20 - 20kHz +2 /-3dB (RIAA)
Mic:                                             20 - 20kHz +2 /-3dB
THD - Total Harmonic Distortion: (EQ Flat, Maximum gain, W/20kHz LPF):
Line/auX:                     LESS THAN 0.02% 20 - 20kHz
phono:                     LESS THAN 0.15% @ 1kHz (A-Weighted)
Mic:                                LESS THAN 0.2% @ 1kHz (A-Weighted)
Maximum Input: (1kHz Input, Master Output, THD=10%, EQ Flat, Maximum gain)
Line/auX:                     MORE THAN +4dBV
phono:                    MORE THAN -36dBV
Mic:                                MORE THAN -36dBV
Maximum Output: (EQ FLAT, Master Output, THD=10%)
Master/Zone:                               MORE THAN +18 dBV (8.0V)
phones:                                           MORE THAN +3dBV (1.4V) Load=32 OHM
S/N Ratio: (Maximum gain, EQ Flat, W/20kHz LPF, A-Weighted)
Line/auX:                     MORE THAN 90dB
phono:                     MORE THAN 66dB
Mic:                                MORE THAN 65dB
cross t aLk: (Maximum gain, EQ Flat, Master Output)                                           
Line, auX, phono:                   MORE THAN 65dB @ 1kHz BETWEEN CHANNELS L & R 
						

							
©American Audio®   -   www.americanaudio.us   -   Q-SD Instruction Manual Page 35
Microphone Equalizer:
Bass:                                             +12 +/-2dB, -22 +/-2dB at 100Hz  
treBLe:                     +12 +/-2dB, -15 +/-2dB at 10kHz
Channel Equalizer:
Bass:                      12 +/-2dB, Below -27 AT 70Hz 
MiD:                       12 +/-2dB, Below -27 AT 1kHz 
treBLe:                    12 +/-2dB, -14 +/-3 AT 13kHz  
channeL BaLance:                                                   WITHIN 3dB 
Fader kill:
channeL FaDer:                    MORE THAN 80dB at 1kHz For CHANNEL FADER
crossFaDer:                     MORE THAN 70dB at 1kHz For CROSSFADER
sD pLaYer:                                 SD CARD 4gB AND BELOW
ouput LeVeL:                        0dBV +/-2dB (TCD-782 TRk16, 128kbps)
thD + n:                          LESS THAN 0.01% @ 1kHz 0dBfs
                        (TCD-782 TRk2, 128kbps, gain at Center)
s/n ratio:                         MORE THAN 90dB
                        (A-Weighted, TCD-782 TRk2/8, 128kbps, gain at Center)
the Q-sD can only read an sD card up to 4GB.  it cannot read an  sD card higher then 4GB.  it must be 
a normal sD card it cannot read an  sDhc card.
Q-SD                                                                      TECHNICAL  SPECIfICATIONS 
						

							
©American Audio® World Headquarters:
6122 S. Eastern Ave. Los Angeles, CA 90040 USA
Tel: 323-582-3322  Fax: 323-582-3311
Web: www.americanaudio.us  E-mail: [email protected]