Andeman AS-2200.D Car Audio System Owner's Manual

Please read carefully before installing or operating this unit.

Specifications

The amplifier features a sleek black design with the Andeman logo, which consists of a stylized 'A' with a lightning bolt inside, followed by the text 'Andeman'.

WARNING

Make sure you choose a suitable place to mount the unit. The position should be completely dry with good air circulation and be mechanically very stable.

System Planning

Proper system planning is crucial for maximizing your amplifier's performance and reliability. Consult your authorized dealer for assistance with system design and installation to achieve optimal sonic potential.

Speaker Requirements

Each amplifier channel can drive 4Ω speaker loads in stereo mode. When bridged, the recommended minimum load impedance is 3Ω for subwoofers and 4Ω for full-range operation. Operating with lower impedances may cause overheating and engage the thermal protection circuitry, which will shut down the amplifier. Normal operation will resume once the chassis cools, but continuous operation under these conditions is not recommended and will reduce the amplifier's lifespan.

Most car audio speakers are 4Ω. Connecting two 4Ω speakers in parallel results in a 2Ω load, which is not recommended for bridged channels. Some subwoofers have dual 4Ω voice coils; connecting these in parallel also results in a 2Ω nominal impedance, which is not recommended for bridged channels.

Series/Parallel Wiring Examples

Series Wiring: Two 4Ω speakers wired in series create an 8Ω load.

Parallel Wiring: Two 8Ω speakers wired in parallel create a 4Ω load.

Series/Parallel Wiring: Two sets of two 4Ω speakers wired in series, then those two sets wired in parallel, result in a 4Ω load.

Troubleshooting

Symptom: Distorted output, poor bass response, battery fuse blowing, impedance load too low, short in power wire, incorrect power connections, fuse smaller than recommended, too much current drawn, amplifier fuse blowing.

Possible Causes:

• Speakers are blown.
• Speakers wired incorrectly.
• Incorrect polarity causing cancellation at low frequencies.
• Crossover set incorrectly.
• Impedance load to amplifier too low.
• Short in power wire or incorrect power connections.
• Fuse used is smaller than recommended.
• Too much current being drawn.

Actions to Take:

• Check system with known working speakers and repair or replace as needed.
• Check speaker polarity and repair as needed.
• Reset crossovers according to the multi-cross crossover configuration section of this manual.
• Check speaker impedance load; if below 2Ω stereo or 4Ω mono, rewire speakers for higher impedance.
• Check power and ground connections and repair as needed.
• Replace with the proper fuse size.
• Check speaker impedance load; if below 2Ω stereo or 4Ω mono, rewire speakers for higher impedance.
• Check power and ground connections and repair as needed.
• Check speaker impedance load; if below 2Ω stereo or 4Ω mono, rewire speakers for higher impedance and replace with the recommended fuse size.
• Check power and ground connections and repair as needed.
• Replace with the proper fuse size.

Symptom: No output

Possible Causes:

• Low or no remote turn-on input.
• Fuse blown.
• Power wires not connected.
• Audio input not connected or no output from source.
• Speaker wires not connected.
• Speakers are blown.
• Thermal protection engaged (amplifier heatsink temperature exceeds 90°C).
• Loose or poor audio input.
• Amplifier level sensitivity set too high, exceeding maximum output capability.
• Impedance load to amplifier too low.
• Shorted speaker wires.
• Speaker not connected to amplifier properly.

Actions to Take:

• Check remote turn-on voltage output at the amplifier and correct as needed.
• Check power wire integrity and polarity; repair as needed and replace fuse.
• Check power wire and ground connections; repair or replace as needed.
• Check input connections and signal integrity; repair or replace as needed.
• Check speaker wires; repair or replace as needed.
• Check system with known working speakers and repair or replace speakers as needed.
• Ensure proper ventilation for the amplifier and improve ventilation if needed.
• Check input connections; repair or replace as needed.
• Reset gain according to the tuning section of the manual.
• Check speaker impedance load; if below 2Ω stereo or 4Ω mono, rewire speakers for higher impedance.
• Check speaker wire connections; repair or replace as needed.
• Check speaker wiring; repair or replace as needed.
• Refer to the installation section of this manual for detailed instructions.

Power Connection Leads

The diagram shows the power connection leads for the amplifier, including +12V, REM (Remote), and GND (Ground) terminals, as well as speaker outputs.

Notes on the Power Supply

Connect the +12V power input lead only after all other leads have been connected. Ensure the ground wire is securely connected to a metal part of the car to prevent malfunction. The REM terminal turns the unit on when +12V is applied. A thinner connecting wire (18-gauge) is acceptable for the REM terminal. This terminal can be driven by the radio's power antenna control wire. If the power antenna wire is in use, it can be spliced into. This allows the unit to turn on automatically with the radio. Use a power supply lead with a fuse of the same value as the original. Place the fuse as close as possible to the car battery. For full power operation, use leads larger than 10-Gauge (AWG.10) for the +12V and GND terminals.

System Configurations

System 2 Bridged Connection Subwoofer

This configuration shows a bridged connection for a subwoofer, utilizing two channels of the amplifier.

System 1 4 Channel Mode

This diagram illustrates the amplifier operating in a 4-channel mode, connecting to multiple speakers.

Bridge In

This RCA jack receives a signal from the master amplifier when this amplifier is bridged as a slave. Do not use this input jack when the amplifier is working as a slave; all functions will be adjusted by the master amplifier.

Bridge Out

This RCA output sends a bridged signal to another same Class D amplifier in a bridging configuration.