MB Quart - 640W Class AB Bridgeable Multichannel Amplifier - Black
- Model: ZA1-640.4
- SKU: 9120093
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What's Included
- 640W Class AB Bridgeable Multichannel Amplifier
- Owner's manual
Ratings & Reviews
Product Features
Up to 640W (160W x 4) @ 2 ohms
As well as up to 320W (80W x 4) @ 4 ohms or 640W (320W x 2) @ 4 ohms bridged for robust audio. The high-frequency power supply delivers maximum power with minimal impact on your vehicle's electrical system.
Variable electronic crossover
With a 60Hz - 13kHz high-pass range and a 30-250Hz low-pass range allows precise control of the amplifier output.
Top-mounted controls
Make operation simple.
Q-Stasis preamplifier stage
Allows low-voltage signals from the source to enter the amplifier with minimal distortion.
Focused-mass aluminum heat sink
Helps dissipate heat to keep components cool.
LED system protection circuitry
With overload and speaker short protection to safeguard the amplifier. Includes lighted indicators on the end panel that keep you apprised.
RCA outputs
Offer a reliable connection. You can also daisy-chain multiple amplifiers together (additional amplifiers not included).







