Infinity Reference 1211a Mono subwoofer amplifier 854 watts RMS x 1
Infinity Reference 1211a Mono subwoofer amplifier 854 watts RMS x 1

The high-frequency Class D switching power supply used in the Reference 1211a is more efficient than traditional class A/B supply’s and draws less current from your vehicle’s charging system.The Reference 1211a features a 12dB per octave electronic crossover, allowing you to optimize bass performance based on enclosure type and subwoofer selection.Dynamic Bass Optimization (DBO) provides variable filtering with adjustable “Q” below 100Hz, far beyond conventional “Bass Q” circuits, by allowing the low-frequency output to be optimized for specific subwoofer applications. Frequencies below an enclosure’s tuning frequency can be attenuated, preventing damage to the subwoofer and allowing the amplifier’s power to be better utilized.Full-range preamp outputs facilitate use of multiple amplifiers without the need for noisy and expensive adapters or signal splitters.
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