American Audio Amplifier VX Series User Manual

User Instructions
AmericAn Audio®
6122 S. eastern Ave
Los Angeles ca. 90040
6/09
Professional Power Amplifiers
VX Series 

This symbol is intended to alert the user to the presence of non insulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to 
constitute a risk of electric shock to persons.
This symbol is intended to alert the user of the presence of important operating and maintenance (servicing) instructions\
 in the literature accompanying the product.
CaUtIon: risk of the electrical shock - Do not open!
CaUtIon: To reduce the risk of electrical shock, do not...

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.
CaUtIon
Do not open -
risk of electric shockFOR  OPTIMUM  PERFORMANCE  AND 
RELIABILITY  DO  NOT  PRESENT  THE 
AMPLIFIER  WITH  A  SPEAKER  LOAD 
O F   L E S S   T H A N   2   O H M S   O R   A N Y 
COMBINATION  OF  SPEAKERS  THAT 
TOGETHER ARE LESS THAN 2 OHMS!
USING  ONE  SPEAKER,  IT  MUST  BE 
RATED AT 4 OR MORE OHMS....

Important Precautions
•   To reduce the risk of electrical shock or fire, do not expose this  
   unit rain or moisture.
•   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- 
   trical shock and fire in case of an internal short.
•   disconnect main power before making...

1. Channel Signal Indicators - These green and yellow Led’s will glow 
according to the average signal output.
2.  Channel  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.
3.  Power Switch - This switch is used to control the units main power. 
4.  LCd  Screen  - This  Lcd  screen  lets  you  know  the...

rear Panel Control
VX1000 & VX1500
21. Cooling Fans - dual high speed cooling fans
22.  Channel a  XLr  Input  - channel  two  3-pin  XLr  balanced  input  jack.  See 
page 9 for more details.
23. Channel a XLr outputs - Channel two 1/4” female jack. Excepts either a  
balanced or unbalanced plug. See page 9 for more details.
24.  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....

©American Audio®  -  www.americanaudio.com  -  VX Series™ Power Amplifier User Manual  Page 7
rear Panel Control
VX2500
33. Cooling Fans - dual high speed cooling fans
34. Channel a XLr Input - channel A 3-pin XLr balanced input jack. See page 
9 for more details.
35. Channel  a XLr ouput - Channel A XLR output jack. Excepts either a  bal-
anced or unbalanced plug. See page 9 for more details.
36.  Channel  a  Speakon output  - optional  speaker  output  connections.  use 
pins 1+ and 1- of this 4-pole...

oUtpUts: 
binding post/banana plug - Connect your speakers to the binding post outputs on the rear of the amplifier. The 
speaker wire may be connect by bare wire (directly connected, usually for permanent connections), banana plug, 
or spade connector. connections are made to  channels 1 and 2 output’s for stereo mode or across the red ter-
minals of Channels 1 and 2 for Mono Bridge Mode. 
Important notice:  Although  a  speaker  will  operate  with  the  positive  and  negative  leads  plugged  into...

©American Audio®  -  www.americanaudio.com  -  vX Series™ power Amplifier user manual  page 9
spade Connector: (Figure 7)
When connecting your speakers to the amplifier using spade connector; Unscrew the red and black caps on 
the binding post, be sure not to completely remove or unscrew the red and black caps. insert the spade con-
nector in to the binding post and tighten the caps down on the spade connector. To reduce the risk of shock 
or  damage  to  your  amplifier,  be  sure  that  the  wire...

©American Audio®  -  www.americanaudio.com  -  vX Series™ power Amplifier user manual  page 10
SP eakon  aSSeMBL y:  You  will  need  a  pair  of  Neutrik  Speakon®  NL4FC 
connectors.  You  will  also  need  high-quality  two  or  four  conductor  speaker 
cable, a pair of needle-nosed pliers and a 1.5-mm Allen key to assemble the 
Speakon connectors to your speaker wire. To assemble the  neutrik Speakon 
NL4FC connector, complete the following steps:
1. Strip back 3/4-inch of the cable casing. Strip...