put). 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 usually be traced to a bad cable or a bad speaker component and is rarely traced to the amplifier itself.

Thermal Protection - Dual variable speed fans on the V4000plus amplifier provide adequate cooling. During low level output the fans run at normal speeds. During high output and as heat raises, (exceeding 90°C.), the fans will run at higher speeds to aid the cooling process. If the heatsink temperature exceeds 91°C., the amplifier will mute until the amplifier cools down. When the amplifier cools below 90°C., the amplifier will return to normal operations. Be sure not to operate your amplifier below the minimum load ratings to reduce the risk of overheating problems.

Input/Output Protection - The input circuits are isolated by 10k resistors. An ultrasonic network uncouples RF from the output and helps keep the amplifier stable with reactive loads.

Operating Voltage (AC Mains) - The serial number label indicates the correct AC main voltage. Connecting to the wrong voltage is dangerous and may damage the amplifier. Always be sure the source voltage for your areas matches the required voltage for your amplifier.

Gain Controls - The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain. It is best to adjust the amplifier so no “hissing” is heard from speakers with no music being played, this will ensure the lowest possible distortion during normal operation.

AMPLIFIER FEATURES:

THRU - 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 as there is no excessive level loss. Is not affected by crossover setting.

GROUND LIFT SWITCH - Applying or lifting the ground switch will change the level for background noise and hum, if the noise level remains the same in either position, it is better to keep the ground lift switch in the ground position. This will eliminate 60Hz cycle hum that is sometimes induced when mounting several units in the same rack.

OPERATING VOLTAGE (AC MAINS) - The serial number label indicates the correct AC main voltage. Connecting to the wrong voltage is dangerous and may damage the amplifier.

GAIN CONTROLS - The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain. It is best to adjust the amplifier so no “hissing” is heard from speakers with no music being played, this will ensure the lowest possible distortion during normal operation.

LED INDICATORS - Each channel has seven LEDS. Four LEDs indicate signal level activity; two green LED and two yellow LED. One red LED indicates signal clipping. One red LED indicates protections mode for shorts/ overload. One red LED indicating overheating situations. Both channels will also share the center green LED that indicate the amplifier operating mode.

FUNCTION INDICATORS - These green LED indicators detail the amplifiers current operating mode (Stereo, Mono, or Bridge).

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

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American Audio V4000 plus manual Amplifier Features
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V4000 plus specifications

The American Audio V4000 Plus is a professional-grade mixer designed for DJs and sound engineers looking for a versatile and feature-rich device to enhance their performance. This innovative mixing console combines a range of advanced technologies and characteristics that make it an essential tool for live events, parties, and club performances.

One of the standout features of the V4000 Plus is its four-channel mixer configuration, allowing DJs to mix multiple audio sources seamlessly. Each channel can accommodate both line and phono inputs, providing flexibility for connecting various media players, turntables, and other audio equipment. Additionally, the mixer includes a dedicated microphone input with a three-band EQ, ensuring users can integrate vocal performances effortlessly.

The V4000 Plus also comes equipped with a built-in digital effects processor, offering a variety of effects such as echo, delay, and reverb. These effects can be applied to individual channels or the master output, allowing for creative sound manipulation during performances. The easy-to-use interface enables DJs to tweak effect parameters in real-time, enhancing their creative output.

Another significant feature of this mixer is its LED VU meters, which provide visual feedback on audio levels. This is particularly useful for DJs during live sets, as it helps prevent distortion and ensures optimal sound quality. With a robust construction and user-friendly layout, the V4000 Plus is both durable and intuitive, making it suitable for both beginners and experienced professionals.

The American Audio V4000 Plus also emphasizes connectivity with multiple outputs, including master and zone outputs. This allows users to route their audio signal to different destinations, such as external speakers or recording devices, with ease. Furthermore, the mixer supports USB connectivity, enabling direct audio streaming to and from a computer, making it ideal for hybrid DJ setups.

In summary, the American Audio V4000 Plus is a feature-packed mixer that caters to the needs of modern DJs. With its four-channel configuration, built-in effects, LED VU meters, and extensive connectivity options, it stands out as a reliable choice for anyone looking to elevate their sound mixing capabilities.
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