American Audio Stereo Amplifier V 01 Plus Series User Manual

Professional Power Amplifiers  
V-01 Plus Series  
User Instructions  
AMERICAN AUDIO®  
4295 Charter Street  
Los Angeles Ca. 90058  
Re. 9/06  
 
CAUTION  
Do not open -  
risk of electric shock  
POUR ASSURER L A FIABILETE ET  
OBTENIT UNE PERFORMANCE OPTIMALE,  
NESOUMETTE JAMAIS LAMPLIFICATEUR  
A UNE CHARGE D’IMPEDANCE TOTALE  
INFERIEURE A 2 OHMS, NI AVEC UN H.P. NI  
EN COMBINAISON DES H.P.  
FOR OPTIMUM PERFORMANCE AND  
RELIABILITY DO NOT PRESENT THE  
AMPLIFIER WITH A SPEAKER LOAD  
OF LESS THAN 2 OHMS OR ANY  
COMBINATION OF SPEAKERS THAT  
TOGETHER ARE LESS THAN 2 OHMS!  
CAUTION: TO REDUCE THE RISK OF ELECTRIC  
SHOCK, DO NOT REMOVE THE COVER.  
THERE ARE NO USER SERVICEABLE PARTS  
INSIDE. REFER ALL SERVICE TO YOUR  
AUTHORIZED AMERICAN AUDIO® DEALER.  
The lightning flash with an arrow triangular  
symbol is intended to alert the user to the  
presence of non insulated “dangerous volt-  
age” within the products enclosure, and  
may be of sufficient magnitude to consti-  
tute a risk of electric shock.  
AVEC UN H.P., IL FAUT UNE CHARGE  
D’IMPEDANCE MINIMUM DE 2 OHMS.  
USING ONE SPEAKER, IT MUST BE  
RATED AT 4 OR MORE OHMS.  
USING TWO SPEAKERS, THEY MUST  
RATED EACH AT 4 OR MORE OHMS.  
AVEC DEUX H.P., FAUT POUR CHAOUN UNE  
CHARGE D’IMPEDANCE MINIMUM DE 4  
OHMS.  
The exclamation point triangular symbol is  
intended to alert the user to the presence  
of important operating and maintenance  
(servicing) instructions in the user manual  
accompanying the amplifier.  
USING THREE SPEAKERS, THEY  
MUST BE RATED EACH AT 8 OR MORE  
OHMS.  
AVEC TROIS H.P., FAUT POUR CHAOUN UNE  
CHURGE D’IMPEDANCE MINIMUM DE 8  
OHMS.  
CONTENTS:  
Safety Precautions.......................................................................................................................................................................................4  
Introduction...............................................................................................................................................................................................4  
Front Panel...................................................................................................................................................................................................5  
Rear Panels..................................................................................................................................................................................................6  
Inputs...........................................................................................................................................................................................................11  
Outputs............................................................................................................................................................................................................11  
Speakon Output Connector Assembly.......................................................................................................................................................13  
Operating Modes........................................................................................................................................................................................14  
Protection Circuitry  
Limiter.................................................................................................................................................................................................15  
Short Circuit Protection...................................................................................................................................................................15  
Thermal Protection..........................................................................................................................................................................16  
Amplifier Features.......................................................................................................................................................................................16  
Subwoofer and Speaker Setup..............................................................................................................................................................17-18  
Warranty.................................................................................................................................................................................................19  
Specifications...............................................................................................................................................................................................20  
 
Important Precautions  
Introduction  
To reduce the risk of electrical shock or fire, do not expose this Introduction: Congratulations and thank you for purchasing  
unit rain or moisture.  
the American Audio® V-01 Series™ amplifier. This amplifier is a  
representation of American Audio’s continuing commitment to  
produce the best and highest quality products all at an affordable  
price. Please read and understand this manual completely before  
attempting to operate your new amplifier. This booklet contains  
• Do not spill water or other liquids into or on to your unit.  
• Do not attempt to operate this unit if the power cord has been  
frayed or broken.  
• Do not attempt to remove or break off the ground prong from  
the electrical cord. This prong is used to reduce the risk of elec- important information concerning the proper and safe operation of  
trical shock and fire in case of an internal short.  
• Disconnect main power before making any type of connection  
• Do not remove the cover under any conditions. There are no  
user serviceable parts inside.  
your new amplifier.  
Unpacking: Every V-01 Series™ amplifier has been thoroughly  
tested and has been shipped in perfect operating condition.  
Carefully check the shipping carton for damage that may have  
occurred during shipping. If the carton appears to be damaged,  
carefully inspect your unit for any damage and be sure all acces-  
sories necessary to operate the unit has arrived intact. In the event  
damage has been found or parts are missing, please contact our  
toll free customer support number for further instructions. Please  
do not return the amplifier to your dealer without contacting cus-  
tomer support first.  
• Never plug this unit in to a dimmer pack.  
• Always be sure to mount this unit in an area that will allow  
proper ventilation. Allow about 6” (15cm) between this device  
and a wall.  
• Do not attempt to operate this unit, if it becomes damaged.  
• This unit is intended for indoor use only, use of this product out-  
doors voids all warranties.  
• During long periods of non-use, disconnect the unit’s main  
power.  
Installation: This amplifier is designed to mount into a standard  
19” rack. The front panel provides four holes used to screw the  
unit into a rack. The unit also provides a way to rear mount the  
unit into a rack for added security. Rear mounting the unit is espe-  
cially recommended for this amplifier if the unit is to mounted into  
a mobile rack.  
• Always mount this unit in a safe and stable manner.  
• Power cords should be routed so they are not likely to be  
walked on, pinched by items placed upon or against them.  
• Cleaning -The outside of the unit should be wipe down with a  
soft cloth and mild cleaner when needed.  
Customer Support: American Audio® provides a toll free custom-  
er support line, to provide set up help and to answer any question  
should you encounter problems during your set up or initial opera-  
for any comments or suggestions. For service related issue please  
contact American Audio®. Service Hours are Monday through  
Friday 9:00 a.m. to 5:00 p.m. Pacific Standard Time.  
• Heat -The appliance should be situated away from heat sources  
such as radiators, heat registers, stoves, or other appliances  
(including amplifiers) that produce heat.  
• The fixture should be serviced by qualified service personnel  
when:  
A. The power-supply cord or the plug has been damaged.  
B. Objects have fallen on, or liquid has been spilled into the unit.  
C. The appliance has been exposed to rain or water.  
D. The fixture does not appear to operate normally or exhibits a  
marked change in performance.  
Voice: (800) 322-6337  
Fax: (323) 582-2610  
 
1
2
3 4  
5
67  
8
Front Panel Control  
All amplifiers in the  
series.  
STEREO  
POWER  
PROTECT  
CLIP  
ON  
-10dB  
-20dB  
SIGNAL  
OFF  
0
10  
0
10  
PROFESSIONAL POWER AMPLIFIER  
Figure 1  
9
10  
1. Power Switch - This switch is used to control the units main power.  
2. Channel 1 Gain Control - This rotary knob is used to control the output signal of channel one. Turning the knob in a clockwise direction will in-  
crease signal output.  
3. Channel 1 Clip Indicator - This red LED will begin to flash when channel one begins to overload (clip). At this point channel one will begin to  
distort. Under heavy clipping activity lower the channel one gain control to reduce the risk of damage to your speakers and amplifier. This LED may  
glow when the unit has been turned off, this is normal.  
4. Channel 1 Protect Indicator - The red Protect LED will begin to glow when the channel goes into protect mode. When the channel goes into  
protect mode all output for that channel will turn off. This is to protect any speakers connected to the channel.  
5. Function Indicators - This indicator details the operating mode of the amplifier. This LED also functions as a power indicator.  
6. Channel 2 Protect Indicator - The red Protect LED will begin to glow when the channel goes into protect mode. When the channel goes into  
protect mode all output for that channel will turn off. This is to protect any speakers connected to the channel.  
7. Channel 2 Clip Indicator - This red LED will begin to flash when channel one begins to overload (clip). At this point channel one will begin to  
distort. Under heavy clipping activity lower the channel one gain control to reduce the risk of damage to your speakers and amplifier. This LED may  
glow when the unit has been turned off, this is normal.  
8. Channel 2 Gain Control - This rotary knob is used to control the output signal of channel two. Turning the knob in a clockwise direction will in-  
crease signal output.  
9. Channel 2 Signal Indicators - These green and yellow LED’s will glow according to the average signal output.  
10. Channel 1 Signal Indicators - These green and yellow LED’s will glow according to the average signal output.  
 
13 14 15 16 17 18 19 20  
21  
22  
23  
13  
Figure 2  
36 35 3433 32 3130 29  
28 27 26 25 24  
13. Cooling Fans - Dual variable speed cooling fans  
14. Channel 1 XLR THRU Jack - This jack is used to send a parallel signal from the channel one input jacks to another device or amplifier.  
15. Channel 1 XLR input - Channel one balanced input jack. This combo jack will accept a standard 1/4 plug or XLR 3-pin balanced male  
plug.  
16. Channel 1 Limiter Switch - This is used to activate the channels built-in limiter. The limiter reduces the average input level when the signal  
begins to distort, this process is designed to reduce distortion and protect the speakers. See limiter page 15.  
17. Channel 1 HPF (High Pass Filter) Switch - When this function is activated it removes all frequencies below 40Hz. Therefore the reproduction  
of the signal’s bass portion is optimized, since all ultra-low frequencies are eliminated.  
18. Channel 1 Frequency Adjustment - This knob is used to adjust the frequency level sent to your speaker on channel one when running the  
channel in subwoofer mode.  
19. Channel 1 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel one on and off.  
20. Channel 1 Rear Gain Control - This rotary knob is used to control the output signal of channel one. Turning the knob in a clockwise direction  
will increase signal output. You must have the VOLUME CONTROL SWITCH in the “Rear” position to use this gain control.  
21. Channel 1 Output Jack/5 way Binding Post - Connect to your speaker’s input jack. Red is positive signal and Black is negative signal.  
22. Channel 1 Speakon Output - Optional speaker output connections. Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your  
speaker’s Speakon input jack. In Mono Bridge mode, use pins 1+ and 2+ of this 4-pole Speakon connector.  
23. Reset Button - This button is used to reset the breaker.  
24. AC Cord - Plug this cable into a standard 110~120v wall outlet. Check that the voltage in your area matches the amplifiers required voltage.  
25. Channel 2 Speakon Output - Optional speaker output connections. Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your  
 
speaker’s Speakon input jack.  
26. Ground Switch - If hear a hum or any interference, put the Ground switch in the “On” postion .  
27. Channel 2 Output Jack/5 way Binding Post - Connect to your speaker’s input jack. Red is positive signal and Black is negative signal.  
28. Mode Switch - This switch controls the amplifier’s operating mode. The amplifier can operate in three different modes; Mono Bridge, Parallel  
Mono, or Stereo. The amplifier is shipped in stereo mode.  
29. Channel 2 Limiter Switch - This is used to activate the channels built-in limiter. The limiter reduces the average input level when the signal  
begins to distort, this process is designed to reduce distortion and protect the speakers. See limiter page 15.  
30. Channel 2 Rear Gain Control - This rotary knob is used to control the output signal of channel two. Turning the knob in a clockwise direction  
will increase signal output. You must have the VOLUME CONTROL SWITCH in the “Rear” position to use this gain control.  
31. Channel 2 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel two on and off.  
32. Channel 2 Frequency Adjustment - This knob is used to adjust the frequency level sent to your speaker on channel two when running the  
channel in subwoofer mode.  
33. Channel 2 HPF (High Pass Filter) Switch - When this function is activated it removes all frequencies below 40Hz. Therefore the reproduction  
of the signal’s bass portion is optimized, since all ultra-low frequencies are eliminated.  
34. Volume Control Switch “Contractor Smart” - This switchs control of the amplifier’s volume control. The amplifier’s volume can be either con-  
trolled from the rear of the unit or the front. If the switch is in the “Rear” position, the volume control located in the rear is used to control the volume.  
In this same postion the volume controls in the front of the unit will be disabled and cannot be used to adjust the volume.  
35. Channel 2 XLR THRU Jack - This jack is used to send a parallel signal from the channel two input jacks to another device or amplifier.  
36. Channel 2 XLR Input - Channel two balanced input jack. This combo jack will accept a standard 1/4 plug or XLR 3-pin balanced male  
plug.