American Audio V4000 plus User Manual

AMERICAN AUDIO

®

4295 Charter Street

POW ER

ON

OFF

LIM ITER

ON

PROFESSIONAL POWER AMPLIFIER

LIM ITER

ON

MONO STER EO BRID GE

-15d B

SIGN AL

-10d B

-5dB

CLIP

PROT ECT

OVER HEAT

0

10

0

10

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 suf cient magnitude to

This symbol is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

Risk of the electrical shock -

To reduce the risk of electrical shock, do not remove cover. No user serviceable parts inside. Refer all servicing to quali ed service personnel.

To prevent electrical shock or  re hazard, do not expose this ampli er to rain or moisture. Before using this ampli er, read the user manual for further warnings.

ATTENTION:

Risque de choc électrique -

NE PAS OUVRIR!

ATTENTION:

Afin de réduire le risque de choc électrique, ne pas enlever le couvercle. Il ne se trouve à l’intérieur aucune piéce pouvant être réparée par l'utilisateur. Confier

AVERTISSEMENT:

Afin de prévenir les risque de décharge ou de feu, n’exposez pas cet appareil à la pluie ou à l’humidité. Avant d’utiliser cet amplificateur, lisez les aver-

tissements supplémentaries situés dans le guide.

ATTENTION:

ATTENTION:

AVERTISSEMENT:

PRECAUCIÓN:

PRECAUCIÓN:

ADVERTENCIA:

PRECAUCIÓN:

ADVERTENCIA:

trischen Schlag verursachen zu können.

fen.

Risiko - Elektrischer Schlag! Nicht öffnen!

Um ddas Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es be nden sich keine Teile darin, die vom Anwender repariert

werden könnten. Reparaturen nur von quali zierte Fachpersonal durchführen lassen.

ACHTUNG:

Um einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte diesen Gerät nicht dem Regen oder Feuchtigkeit ausgesetz werden. Vor Inbetriebnahme

ACHTUNG:

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 2

THERE ARE NO USER SERVICEABLE PARTS

AUTHORIZED AMERICAN AUDIO

®

CAUTION

AMPLIFIER WITH A SPEAKER LOAD

TOGETHER ARE LESS THAN 2 OHMS!

The lightning flash with an arrow triangular

tute a risk of electric shock.

The exclamation point triangular symbol is

A UNE CHARGE D’IMPEDANCE TOTALE

AVEC UN H.P., IL FAUT UNE CHARGE

AVEC DEUX H.P., FAUT POUR CHAOUN UNE

AVEC TROIS H.P., FAUT POUR CHAOUN UNE

Thermal Protection...........................................................................................................................................................................11

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 3

Important Precautions

To reduce the risk of electrical shock or  re, do not expose this

frayed or broken

the electrical cord. This prong is used to reduce the risk of elec-

trical shock and  re in case of an internal short

Always be sure to mount this unit in an area that will allow

This unit is intended for indoor use only, use of this product out-

Always mount this unit in a safe and stable manner

walked on, pinched by items placed upon or against them.

The fixture should be serviced by qualified service personnel

when:

A. The power-supply cord or the plug has been damaged.

marked change in performance.

Introduction

the American Audio

®

V4000

plus™

amplifier. This amplifier is a

plus™

ampli er has been thoroughly

tested and has been shipped in perfect operating condition.

tact our toll free customer support number for further instructions.

This amplifier is designed to mount into a standard

American Audio

®

provides a toll free custom-

tion. You may also visit us on the web at www.americandj.com for

®

Voice:

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 4

This switch is used to control the units main power.

2. Channel 1 Gain Control -

This rotary knob is used to control the out-

3. Channel 1 Limiter Switch -

This is used to activate the channels

4. Channel 1 Clip Indicator -

This red LED will begin to  ash when

5. Channel 1 Protect Indicator -

The red Protect LED will begin to glow

when the channel goes into protect mode. When the channel goes into

6. Channel 1 Overheat Indicator -

This indicator will begin to glow

when the channel goes into thermal protection mode. When the unit

These green and yellow LED’s will glow

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 5

Front Panel Control

POWE R

ON

OFF

LIMI TER

ON

PROFESSIONAL POWER AMPLIFIER

LIMI TER

ON

MONO STE REO BRIDG E

-15dB

SIGNAL

-10dB

-5dB

CLIP

PROTEC T

OVER HE AT

0

10

0

10

943

2

8. Function Indicators -

These indicators detail the operating mode of

the ampli er. These LEDs will also function as a power indicator.

9. Channel 2 Overheat Indicator -

This indicator will begin to glow

when the channel goes into thermal protection mode. When the unit

The red Protect LED will begin to

tect any speakers connected to the channel.

This red LED will begin to  ash when

This is used to activate the channels

This rotary knob is used to control the

will increase signal output.

These green and yellow LED’s will

32

33

Rear Panel Control

ther a balanced or unbalanced plug. See page 7 for more details.

Turns the subwoofer

This knob is used to adjust the

frequency level sent to your speaker on channel two when running the

20. Channel 1 XLR input -

21. Channel 1 Frequency Adjustment -

This knob is used to adjust the

frequency level sent to your speaker on channel one when running the

22. Channel 1 TRS Input -

ther a balanced or unbalanced plug. See page 7 for more details.

23. Channel 1 Subwoofer Mode On/Off Switch -

Turns the subwoofer

24. Channel 2 XLR THRU Jack -

This jack is used to send a parallel

25. Mode Switch -

This switch controls the ampli er’s operating mode.

The ampli er can operate in three different modes; Mono Bridge, Parallel

26. Channel 1 XLR THRU Jack -

This jack is used to send a parallel

27. Fuse Holder -

This holder houses the external 20 amp fuse. Always

®

28. Channel 2 Speakon Output -

29. Channel 1 Speakon Output -

30. Channel 2 Output Jack/5 way Binding Post -

31. Channel 1 Output Jack/5 way Binding Post -

32. Ground Lift Switch -

This switch is used to disconnect the internal

33. AC Cord -

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 6

Hot (+)

Ne

gati

ve

(-)

Diagram 5

Plug

Ground/Shield

Hot (+)

Ne

gati

ve

(-)

Diagram 4

gati

v

e (- data)

2

3

gu

Diagram 3

Connect your speakers to the binding post outputs on the rear of the ampli er. The

Important Notice:

Although a speaker will operate with the positive and negative leads plugged into either termi-

the red terminal. Ensuring proper polarity will avoid speakers being out of phase, that can cause a loss of bass

Important Notice:

jack is inserted securely to avoid the risk of it popping out.

Set Up

- The V4000

plus

amplifier allows you to use two types of input connector per a channel, a XLR jack for balanced connections

plus

amplifier. A balanced connection is recommended for cable runs longer that 20ft. When

to jump a parallel connection to another amplifier or other device. For Example: Connect a XLR cable to the input of channel one. You

will reduce the use of “Y” cables.

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 7

When connecting your speakers to the amplifier using bare wire; Unscrew the red and black

that of another.

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-

with that of another.

When connecting your speakers to the amplifier using banana jacks; Be sure that the red and black caps on

the binding post are tighten down completely. Insert the banana jacks into the caps of the binding post, be

Typical speaker output using bare wire. Insert

Typical speaker output using

®

to the speaker. The Speakon connector used on this ampli er meets all known safety regulations. Once wired correctly, the connector

®

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 8

Always configure your amplifier operating mode before beginning operation. If you want to change it dur-

Stereo Operation -

Page 10/Figure 9 details an example of a typical stereo set-up. Connect your inputs into channels one and

two of the amplifier. Connect your speakers to the outputs on the rear of the amplifier. Be sure that your front gain controls are turned

Mono Bridge Operation -

Page 9/Figure 8 details a mono bridge set-up. Be sure your amplifier and all other audio equipment

your speaker across the red output binding post on the rear of your amplifier. Turn your equipment on (your amplifier should always

Bridged-Mono Mode Caution -

The voltage across the output terminals of a bridged V4000

plus™

amplifier may equal or exceed

Parallel Mono -

V4000

plus

to run bass

Subwoofer Mode -

This mode sends low frequencies to your speakers without the use of an external cross-over. The subwoofer

Bridge Subwoofer -

This operation allows you to get the most possible power out of your ampli er for the sole purpose of running a

this mode you may use the frequency adjustment on the rear of the amp, to control the frequency output level. Frequencies may be

Stereo Subwoofer -

This operation is similar to the Bridge Subwoofer operation but in stereo. This operation allows you to run several

frequency adjustment on the rear of the amp, to control the bass frequency output level. Frequencies may be adjusted from 20Hz to

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 9

Mono Subwoofer -

This operation is similar to the Stereo Subwoofer operation but in mono. When running subwoofers it is usually

You may also use your amp to bi-amp your system. You may use one

Limiter -

The V4000

plus™

series comes with a built in limiter. When the input signal overloads, the “CLIP LED’s” indicate a signal

Safe Power Levels at Different Output Loads:

8-Ohm Loads:

The amplifier can operate at practically any power level without risk of overheating. However, if it is pushed hard

4-Ohm Loads:

If the “CLIP” indicator flashes occasionally, the amplifier is approaching its maximum long-term power capacity. If it is

2-Ohm Loads:

Except for an occasional flash, keep the “CLIP” indicator dark to avoid overheating the amplifier channel. Clipping

Short Circuit Protection -

The V4000

plus™

series amplifiers all come with built-in Output Short

from short circuits and stressful loads. If your speaker lines short, the amplifier automatically detects

this problem and discontinues operation for that channel. If one side of your amplifier becomes

fault. All channel output during the “Short Circuit Protection" will be interrupted (i.e. no sound out-

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 10

Short Circuit Protection

can usually be traced back to the signal output line (i.e. speaker line). Check the line from the output

terminal of the amplifier to the speaker. If this line good, check the internal speaker connections and components. A short circuit will

plus

amplifier provide adequate cooling. During low level output the fans

Input/Output Protection -

The input circuits are isolated by 10k resistors. An ultrasonic network uncouples

from the output and

The serial number label indicates the correct AC main voltage. Connecting to the wrong voltage is

The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain. It is best to

AMPLIFIER FEATURES:

Thru will allow the user to daisy-chain one amplifiers signal input into another amplifier. Plug the signal source outputs into the

first amplifier’s input, patch from the amplifier’s THRU jacks to the next amplifier’s input, and so on, daisy-chaining as many amplifiers

Applying or lifting the ground switch will change the level for background noise and hum, if the noise level

that is sometimes induced when mounting several units in the same rack.

The serial number label indicates the correct AC main voltage. Connecting to the wrong voltage

The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain. It is best to

LED INDICATORS -

FUNCTION INDICATORS

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 11

Two red LED’s for this function, one for each

SPEAKON ASSEMBLY:

You will need a pair of Neutrik Speakon

®

NL4FC

tighten the connection (Figure 12).

wire (Figure 13).

that the large notch on the outer edge of the insert lines up with the large

through the housing and out the other side until it extends approximately 3

/4-inch from the end of the housing.

from the back end of the connector.

UTPUT

S

INPUT BA

ANCE

SPEAKON

1+ HO
1

COL
D

-1

4-Conductor Speaker Cable

A C

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 12

ositiv

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 13

TYPICAL MONO BRIDGE SET-UP

TYPICAL STEREO OUTPUT CONNECTIONS

©American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 14

termainals (red) for speaker output.

THD

W

W

y Response:

w rated output,

Total Harmonic Distortion:
20Hz-20kHz, @ rated
output power, 8 ohms

Input Sensitivity and
Impedance: @ rated
output power, 8 ohms

Power Consumption: @
rated output power, 8 ohms

American Audio® - www.americandj.com - V4000plus™ Power Amplifier User Manual Page 15

American Audio® is part of the American DJ® Group of Companies

American DJ® World Headquarters:

Tel: [phone] / Fax: [phone]

web: www.americandj.com / e-mail: [e-mail]