MICRO1-4000D Class D Compact Monoblock Car Amplifier
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$125.99at Power AcoustikChecked 14 h ago
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The Power Acoustik MICRO1-4000D is a compact Class D monoblock subwoofer amplifier rated at 1,000W RMS at 1 ohm and 750W RMS at 2 ohms, with a 4,000W max figure that reflects peak rather than continuous output. Its 3.5-inch-wide chassis and aluminum heatsink let it fit in tight spaces where full-size amps won't. A variable low-pass, high-pass and subsonic crossover plus 12dB bass boost gives basic tuning, and a dash-mount gain knob is included. It suits budget-minded bass builds that need real 1-ohm power in a small footprint; rivals at this level often match the features but not the size, and owners report it delivers solid output for the money while running hot under heavy loads.
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Lowest price we've seen: $125.99 on Nov 11 at Power Acoustik. Tracked across 1 store since Nov 11.
Owner feedback is mixed. People like the small size and the bass output for the money, but several report heat and reliability concerns when the amp is driven hard at low impedance.
Micro Series Class D Monoblock Car Amplifier
Max Power (Watts)
4,000 Watts
RMS Power @ 1Ω
1 x 1,000
RMS Power @ 2Ω
1 x 750
RMS Power @ 4Ω
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