V4002 - Professional audio amplifier American Audio - Free user manual and instructions
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| Product Type | Power Amplifier |
| Model | V4002 |
| Brand | American Audio |
| Dimensions (W x H x D) | 19 x 3.5 x 11 inches (483 x 89 x 279 mm) |
| Weight | 18 lbs (8.2 kg) |
| Power Supply | AC 100-240V, 50/60Hz |
| Power Output | 2 x 400W at 4Ω, 2 x 250W at 8Ω |
| Frequency Response | 20Hz - 20kHz ±0.5dB |
| Input Impedance | 10kΩ (balanced), 22kΩ (unbalanced) |
| Output Impedance | 0.1Ω |
| Signal-to-Noise Ratio | >100dB |
| THD+N | <0.05% |
| Cooling | Variable speed fan, front to rear airflow |
| Protections | Short circuit, thermal, DC offset, overcurrent |
| Inputs | 2 x XLR/TRS combo jacks |
| Outputs | 2 x Speakon connectors, binding posts |
| Controls | Gain knobs per channel, power switch |
| Indicators | Power, Signal, Clip, Protect LEDs |
| Construction | Steel chassis, rack-mountable with included ears |
| Operating Temperature | 0°C to 40°C |
| Maintenance | Clean with dry cloth; avoid liquids |
| Safety | Class 1 equipment; ground connection required |
Frequently Asked Questions - V4002 American Audio
How do I connect the amplifier to my speakers?
Use Speakon or binding post outputs. Ensure speaker impedance is 4Ω or higher. Connect positive to positive, negative to negative.
What is the power output of the V4002?
It delivers 2 x 400W at 4Ω and 2 x 250W at 8Ω, bridged mono output is 800W at 8Ω.
The amplifier shuts off after a few minutes. What could be wrong?
Check for overheating. Ensure ventilation is not blocked. The thermal protection may be triggered if the amp is overdriven or in a hot environment.
Can I use the amplifier with a low-impedance load?
Minimum load is 4Ω per channel. Using lower impedance can cause overheating and damage. For bridged mode, minimum 8Ω.
What type of input cables should I use?
Use balanced XLR or TRS cables for best noise rejection. Unbalanced TS cables can be used but may pick up interference.
How do I clean the amplifier?
Use a soft dry cloth. Do not use liquid cleaners or spray directly. Avoid getting moisture into vents.
The clip LED is flashing even at low volume. What does this mean?
It indicates the input signal is too high or the gain is set too high. Reduce the input level or gain knob to avoid distortion.
Is the amplifier rack-mountable?
Yes, it has standard 19-inch rack ears included. It occupies 2 rack units (3.5 inches).
What is the warranty period?
American Audio typically offers a 2-year warranty from date of purchase. Check your retailer for specific terms.
Can I use the amplifier in bridged mode?
Yes, use the Mode switch (if available) or follow bridging instructions. Connect speaker to the bridged output (usually channel 1 positive and channel 2 negative). Ensure load is 8Ω.
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USER MANUAL V4002 American Audio
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Product information
Brand : American Audio
Model : V4002
Category : Professional audio amplifier