American Audio Mixer QSpand User Manual

							 Q-SPAND™                      CONTROLS AND FUNCTIONS
47. CHANNEL 2 LINE LEVEL SELECTOR SWITCH -  This switch is used to change the mode of 
Channel 2: Phono 2 Input/Aux 2 Jacks (46) . When connecting turntable to the Channel 2: Phono 2 
Input/Aux 2 Jacks (46)  be sure this 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.
48. CHANNEL 1: LINE 1 RCA INPUT JACKS -  These Jacks are used for line level inputs. Connect 
CD players or Tape Decks to LINE inputs. Line level musical instruments with stereo out\
puts 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. Input volume will be controlled by ch\
annel one  Channel Fader (9). 
The channel  Source Selector Switch (5)  must be in the Line 1 position, to monitor any source con-
nected to these jacks.
49. CHANNEL 1: PHONO 1 INPUT/AUX 1 JACKS -  The type of input must directly re ect the selected 
mode of the  Line Level Selector Switch (5) . Connect turntables equipped with MM pickup cartridge 
to PHONO inputs (All DJ turntable use MM pick-up cartridges). CD playe\
rs or Tape Decks and other 
line level instruments may be connected to these jacks as long as the  Line Level Selector Switch 
(5)  is in the “AUX 1” position. 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  Channel Fader 
(9) . The channel  Source Selector Switch (5)  must be in the Phono 1/Aux 1 position, to monitor any 
source connected to these jacks.
50. CHANNEL 1 LINE LEVEL SELECTOR SWITCH -  This switch is used to change the mode of 
Channel 1: Phono 1 Input/Aux 1 Jacks (49) . When connecting turntable to the Channel 1: Phono 1 
Input/Aux 1 Jacks (49)  be sure this 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.
51. MICROPHONE 3 CONNECTOR -  This jack is used to a connect a microphone to the mixer. Con-
nect you microphone via this 1/4 inch (6.3mm) jack. The signal volume will be controlled by the  Mic 3 
V olume Knob (19).  The bass and treble levels can also be adjusted by the  Microphone EQ (1 & 17).
52. MICROPHONE 2 CONNECTOR -  This jack is used to a connect a microphone to the mixer. Con-
nect you microphone via this 1/4 inch (6.3mm) jack. The signal volume will be controlled by the  Mic 2 
V olume Knob (19).  The bass and treble levels can also be adjusted by the  Microphone EQ (1 & 17).
53. GND (GROUND TERMINAL) -  Be sure to connect turntable ground leads to any of the three 
ground terminal. This will reduce the humming and popping noises associated with magnetic\
 phono 
cartridges.
©American Audio®   -   www.americanaudio.us   -   Q-SPAND™ Instruction Manual Page 11 
						

							 Q-SPAND™                              Typical Mixer Set-Up
CASSETTE DECK
TURNTABLE
TURNTABLE
©American Audio®   -   www.americanaudio.us   -   Q-SPAND™ Instruction Manual Page 12 
						

							 Q-SPAND™                              Typical Mixer Set-Up
Speaker Cables
Balanced XLR-XLR Cables
©American Audio®   -   www.americanaudio.us   -   Q-SPAND™ Instruction Manual Page 13
American Audio  V4000™
Typical Balanced Output Set-up
This image details a typical stereo output layout. Note the use of the B\
alanced XLR Jacks on both the 
mixer and the ampli 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 enti\
re audio system. 
						

							Due to fog residue, smoke, and dust, cleaning the mixer should be carrie\
d out periodically to 
optimize light output.  
1.   Use normal glass cleaner and a soft cloth to wipe down the outside casin\
g.
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.   Clean should be carried out every 30-60 days.
4.   Always be sure to dry all parts completely before plugging the   mixer in.
Cleaning frequency depends on the environment in which the mixer operate\
s (i.e. smoke, fog 
residue, dust, dew).
The crossfader is “Hot Swappable” which means it may be replaced a\
t 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 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  t one way, so don’t worry about the connectors 
  orientation.
5.   Connect the new crossfader to the ribbon cable and replace in reverse or\
der.
  Q-SPAND™               Cleaning
 Q-SPAND™           Cross Fader Replacement
©American Audio®   -   www.americanaudio.us   -   Q-SPAND™ Instruction Manual Page 14 
						

							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 i\
ts original package. No accessories 
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 acc\
essories, nor for the safe return 
thereof.  
C.  This warranty is void if the serial number has been altered or removed;\
 if the product is modi ed 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 main\
tenance, cleaning or peri-
odic check-up. During the period speci ed above, American Audio
®  will replace defective parts at its 
expense, and will absorb all expenses for warranty service and repair la\
bor by reason of defects in 
material or workmanship. The sole responsibility of American Audio
®  under this warranty shall be lim-
ited to the repair of the product, or replacement thereof, including par\
ts, at the sole discretion of Ameri-
can 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 it\
s prod-
ucts without any obligation to include these changes in any products the\
retofore manufactured. 
F.   No warranty, whether expressed or implied, is given or made with respect to any acc\
essory supplied 
with products described above. Except to the extent prohibited by applic\
able law, all implied warran-
ties made by American Audio
®  in connection with this product, including warranties of merchantability\
 
or  tness, are limited in duration to the warranty period set forth above. And no warranties, whether 
expressed or implied, including warranties of merchantability or  tness, shall apply to this product after 
said period has expired. The consumer’s and or Dealer’s sole remedy shall be such repair or replace-
ment 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-SPAND™ carries a two 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 freigh\
t 
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 out toll free number.
  Q-SPAND™              Warranty
©American Audio®   -   www.americanaudio.us   -   Q-SPAND™ Instruction Manual Page 15 
						

							Model: Q-SPAND 4 Channel Mixer
POWER SUPPLY:    AC 115/230V, 50/60Hz Selectable
DIMENSIONS:       482 x 176 x 72mm
WEIGHT:     7.5 Lbs. / 2.8 kg
CROSSFADER:       Feather Fader Plus - VCA detecting fader start control - 
          Low grounding impedance crossfader
POWER CONSUMPTION:   5W typical, 7W w/ full headphone output
HEADPHONE IMPEDANCE:   16 Ohms
ENVIRONMENTAL CONDITION:  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): LOAD=47K OHM
LINE:       -14dBV / 10K Ohm ±3dB
PHONO:       -50dBV / 47K Ohm ±3dB
MICROPHONE:      -54dBV / 3K Ohm ±3 dB
AUX:       -14dBV / 47K Ohm ±3dB
Output Sensitivity (Level/Impedence): Note: 0dBV=1Vrms
MASTER OUT (XLR):     0dBV /470 Ohm ±3dB
REC OUT (RCA):     -5.5dBV /1K Ohm ±3dB
PHONES (LOAD=32 OHMS):    -2dBV /33 Ohm, PGM IN ±3dB -3dBV / 33 Ohm, CUE IN +/-3dB  
Maximum Output (Load = 47K, THD = 5%)
MASTER/ZONE:       More than 18dBV (8V)
PHONES (Load=32 ohms):    More than 4.6dBV (1.7V)
CHANNEL BALANCE:         WITHIN 3dB
Frequency Response:
LINE/AUX:            20Hz - 20KHz, ±2dB
PHONO:             20Hz - 20KHz, +2/-3dB (RIAA)
MICROPHONE:           20Hz - 20KHz, +2,-3dB
Output Noise (IEC-A WEIGHTED):
LINE/AUX:            LESS THAN  -70dBV
PHONO:            LESS THAN  -65dBV
MIC:              LESS THAN  -55dBV
THD - Total Harmonic Distortion (1Khz, 0dBV Output):
MASTER OUTPUT (LOAD = 47K OHMS):   LESS THAN 0.2%
PHONO: (LOAD = 32 OHMS):       LESS THAN 0.3%
CROSS TALK:      More than 40dB
Channel Equalizer:
BASS:      +12 ±3dB / Less than -25dB at 70Hz
MID:       +12 ±3dB / Less than -18dB at 1KHz
TREBLE:      +11 ±2dB / Less than -12dB at 13KHz
Microphone Equalizer:
BASS:        +12 ±2dB / Less than -20dB at 70Hz  
TREBLE:      +12 ±2dB / Less than -15dB at 13KHz
  Q-SPAND™             Specifications
©American Audio®   -   www.americanaudio.us   -   Q-SPAND™ Instruction Manual Page 16 
						

							SRS, WOW  and the symbol are trademarks of SRS Labs, Inc. SRS technology is incorporated under li\
cense from SRS Labs, Inc.
©American Audio  Supply
American Audio  World  Headquarters: 4295 Charter Street 
Los Angeles,  CA 90058  USA
T el: 323-582-2650 Fax: 323-582-2610
Web: www.americanaudio.us E-mail: [email protected]