American audio VX Manual

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Professional Power Amplifiers

American Audio®

6122 S. Eastern Ave Los Angeles Ca. 90040

6/09

VX Series

User Instructions

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 remove cover. No user serviceable parts inside. Refer all servicing to qualified service personnel.

Warning: To prevent electrical shock or fire hazard, do not expose this amplifier to rain or moisture. Before using this amplifier, read the user manual for further warnings.

Este símbolo tiene el propósito de alertar al usuario de la presencia de “voltaje peligroso“ que no tiene aislamiento dentro de la caja del producto que puede tener una magnitud suficiente como para constituir riesgo de corrientazo.

Este símbolo tiene el propósito de alertar al usuario de la presencia de instrucciones importantes sobre la operación y mantenimiento en la literatura que vienc con el producto.

Precaución: Riesgo del choque eléctrico - no se abra

Precaución: Para disminuir el riesgo de choque eléctrico, no quite la cubierta. No hay piezas adentro que el usario puede reparar. Deje todo mantenimiento al los técnicos cualificados.

Advertencia: Para prevenir choque eléctrico o riesgo de incendios, no deja expuesto a la lluvia o a la humedad este amplificador. Antes de usar este amplificador, lea mas advertencias en la guia de operacion.

Ce symbole est utilisé pur indiquer à l’utilisateur la présence à l'intérieur de ce produit de tension non-isolée dangereuse pouvant être d'intensité suffisante pour constituer un risque de choc électrique.

Ce symbole est utilisé pour indiquer à l’utilisateur qu'il trouvera d'importantes instructions importantes sur l'utilisation et l'entretien de l'appareil dans la littérature accompagnant le produit.

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 l'entretien à un personnel qualifié.

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 avertissements supplémentaries situés dans le guide.

Dieses Symobl soll den Anwender vor unisollierten gefährlichen Spannungen innerhalb des Gehäuses warnen, die von Ausreichender Stärke sind, um einen elektrischen Schlag verursachen zu können.

Dieses Symobl soll den Benutzer auf wichtige Instruktionen in der Bedienungsanleitung aufmerksam machen, die Handhabung und Wartung des Produkts betreffen.

Vorsicht: Risiko - Elektrischer Schlag! Nicht öffnen!

Vorsicht: Um ddas Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es befinden sich keine Teile darin, die vom Anwender repariert werden könnten. Reparaturen nur von qualifizierte Fachpersonal durchführen lassen.

ACHTUNG: Um einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte diesen Gerät nicht dem Regen oder Feuchtigkeit ausgesetz werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.

©American Audio® - www.americanaudio.com - VX Series™ Power Amplifier User Manual Page 2

CAUTION

Do not open - risk of electric shock

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 voltage” within the products enclosure, and may be of sufficient magnitude to constitute a risk of electric shock.

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.

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!

USING ONE SPEAKER, IT MUST BE RATED AT 4 OR MORE OHMS.

USING TWO SPEAKERS, THEY MUST RATED EACH AT 4 OR MORE OHMS.

USING THREE SPEAKERS, THEY MUST BE RATED EACH AT 8 OR MORE OHMS.

POUR ASSURER LA FIABILETE ET OBTENIT UNE PERFORMANCE OPTIMALE, NESOUMETTE JAMAIS L’AMPLIFICATEUR A UNE CHARGE D’IMPEDANCE TOTALE INFERIEURE A 2 OHMS, NI AVEC UN H.P. NI EN COMBINAISON DES H.P.

AVEC UN H.P., IL FAUT UNE CHARGE D’IMPEDANCE MINIMUM DE 2 OHMS.

AVEC DEUX H.P., FAUT POUR CHAOUN UNE CHARGE D’IMPEDANCE MINIMUM DE 4 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...........................................................................................................................................................................................................	8
Outputs............................................................................................................................................................................................................	8
Speakon Output Connector Assembly.......................................................................................................................................................	10
Operating Modes........................................................................................................................................................................................	11
Protection Circuitry
Limiter.................................................................................................................................................................................................	13
Short Circuit Protection...................................................................................................................................................................	13
Thermal Protection..........................................................................................................................................................................	13
Amplifier Features.......................................................................................................................................................................................	13
Amplifier Password/Lock Feature...............................................................................................................................................................	16
Speaker Setup............................................................................................................................................................................................	15
Warranty.................................................................................................................................................................................................	16
Specifications...............................................................................................................................................................................................	17

©American Audio® - www.americanaudio.com - VX Series™ Power Amplifier User Manual Page 3

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.		this American Audio® VX Series™ amplifier. This amplifier is a
• Do not spill water or other liquids into or on to your unit.		representation of American Audio’s continuing commitment to
• Do not attempt to operate this unit if the power cord has been		produce the best and highest quality products all at an affordable
frayed or broken.		price. Please read and understand this manual completely before
• Do not attempt to remove or break off the ground prong from		attempting to operate your new amplifier. This booklet contains
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.		your new amplifier.
• Disconnect main power before making any type of connection		Unpacking: Every VX Series™ amplifier has been thoroughly test-
• Do not remove the cover under any conditions. There are no		ed and has been shipped in perfect operating condition. Carefully
user serviceable parts inside.		check the shipping carton for damage that may have occurred
• Never plug this unit in to a dimmer pack.		during shipping. If the carton appears to be damaged, carefully
• Always be sure to mount this unit in an area that will allow		inspect your unit for any damage and be sure all accessories nec-
proper ventilation. Allow about 6” (15cm) between this device		essary to operate the unit has arrived intact. In the event damage
and a wall.		has been found or parts are missing, please contact our toll free
• Do not attempt to operate this unit, if it becomes damaged.		customer support number for further instructions. Please do not
• This unit is intended for indoor use only, use of this product out-		return the amplifier to your dealer without contacting customer
doors voids all warranties.		support first.
• During long periods of non-use, disconnect the unit’s main		Installation: This amplifier is designed to mount into a standard
power.
power.		19” rack. The front panel provides four holes used to screw the
• Always mount this unit in a safe and stable manner.
• Always mount this unit in a safe and stable manner.		unit into a rack. The unit also provides a way to rear mount the
• Power cords should be routed so they are not likely to be
• Power cords should be routed so they are not likely to be		unit into a rack for added security. Rear mounting the unit is espe-
walked on, pinched by items placed upon or against them.
walked on, pinched by items placed upon or against them.		cially recommended for this amplifier if the unit is to mounted into
• Cleaning -The outside of the unit should be wipe down with a
		a mobile rack.
soft cloth and mild cleaner when needed.		a mobile rack.
soft cloth and mild cleaner when needed.		Customer Support: American Audio® provides a toll free custom-
• Heat -The appliance should be situated away from heat sources
such as radiators, heat registers, stoves, or other appliances		er support line, to provide set up help and to answer any question
		should you encounter problems during your set up or initial opera-
(including amplifiers) that produce heat.
(including amplifiers) that produce heat.		tion. You may also visit us on the web at www.americanaudio.com
• The fixture should be serviced by qualified service personnel
		for any comments or suggestions. For service related issue please
when:
when:		contact American Audio®. Service Hours are Monday through
A. The power-supply cord or the plug has been damaged.		contact American Audio®. Service Hours are Monday through
A. The power-supply cord or the plug has been damaged.		Friday 9:00 a.m. to 5:00 p.m. Pacific Standard Time.
B. Objects have fallen on, or liquid has been spilled into the unit.		Friday 9:00 a.m. to 5:00 p.m. Pacific Standard Time.
C. The appliance has been exposed to rain or water.		Voice: (800) 322-6337 E-mail: support@americanaudio.com
C. The appliance has been exposed to rain or water.		Fax: (323) 582-2610
D. The fixture does not appear to operate normally or exhibits a		Fax: (323) 582-2610

marked change in performance.

©American Audio® - www.americanaudio.com -	VX Series™ Power Amplifier User Manual Page 4

Front Panel	1	2			3	4	5
VX1000
VX1500
VX2500
12		11	10	9	8	7	6	Figure 1
12		11	10	9	8	7	6

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 current temperatures of both channels. It also will display the different menus and settings when accessed using the Menu and Enter buttons.

5.Channel Limiter Indicator - This red LED will begin to flash when the respective channel begins to overload (clip). At this point channel one will begin to distort. Under heavy clipping activity lower the channels 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.

6.Channel B Gain Control - This rotary knob is used to control the output signal of channel B. Turning the knob in a clockwise direction will increase signal output.

7.Enter Button - This button will allow you to access the different settings located in the menu. Push this button to set your desired setting.

8.Down Button - This button allows you to scroll backwards when in the menu settings.

9.Up Button - This button allows you to scroll forwards when in the

menu settings.

10.Menu Button - This button, when pushed, lets you access the amp menu. Continue to push to scroll through the menu choices

11.Function Indicators - These indicators detail the operating mode of the amplifier. This blue LED will also function as a power indicator.

12.Channel A Gain Control - This rotary knob is used to control the output signal of channel A. Turning the knob in a clockwise direction will increase signal output.

Rear Panel Control	21	22	23	24	25	26	21
VX1000 & VX1500	21	22	23	24	25	26	21
VX1000 & VX1500

Figure 2

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.

25.Channel 2 Output Jack/5 way Binding Post - Connect to your speaker’s input jack. Red is positive signal and Black is negative signal.

26.AC Cord - Plug this cable into a standard wall outlet. Check that the voltage in your area matches the amplifiers required voltage.

27.Fuse Holder - This housing stores a 20 amp GMA protective fuse for the

VX1000 and 25 amp GMA protective fuse for the VX 1500. Never defeat the fuse, the fuse is designed to protect the electronics in the event of severe power fluctuations. Always be sure to replace the fuse with an exact match as the one being replaced, unless otherwise told to do so by an authorized American Audio® service technician.

28.Channel 1 Output Jack/5 way Binding Post - Connect to your speaker’s input jack. Red is positive signal and Black is negative signal.

29.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.

30.Ground On/Off Switch - If hear a hum or any interference, put the Ground switch in the “On” postion .

31.Channel B TRS Input - Channel one 1/4” female jack. Excepts either a balanced or unbalanced plug. See page 9 for more details.

32.Channel B XLR input - Channel one 3-pin XLR balanced input jack. See page 9 for more details.

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