Infinity's Reference 6001A mono subwoofer amplifier will add some bass muscle to your music without breaking a sweat, and it'll look good doing it. This powerhouse delivers 600-Watts RMS to your subwoofer, and its Class D design ensures the amp's high output will put minimal strain your vehicle's electrical system. Speaker-level inputs allow this amplifier to work in almost any system, even if you're hanging on to your factory radio. You can use the low-pass filter and variable bass boost to maximize the performance of your subwoofer and enclosure, while a phase switch ensures that the bass will blend well with your full-range speakers. Compact size The Infinity Reference 7005A amplifier feature a low-profile chassis and a small overall footprint to fit in more vehicles where available space is limited. High and low level input Speaker-level and low-level inputs allow the Reference 7005A to integrate with both aftermarket and factory car stereo systems.. Variable crossover and bass boost Unlike many amplifiers available at similar prices, Infinity Reference amps feature variable electronic crossovers and bass boost circuit to allow for fine-tuning.. Low noise and distortion Produces tight bass with low distortion at high SPL. Balanced Differential Inputs are used to ensure low noise. Input Level Control When low-level inputs are used, this control adjusts the input sensitivity between 200mVrms and 2.0 Vrms. When high-level inputs are used, this control adjusts the input sensitivity between 2Vrms and 20Vrms. Full on-board protection The on-board circuitry to protect them from shorts, temperature, overvoltage and undervoltage. An LED indicator is included on all four models to let you know when one of these conditions exists. Phase Switch This switch changes the input phase to inverted or non-inverted. This is especially helpful with the subwoofer channel. RBC wired remote The RBC wired remote is an easy installation and can be mounted for convenient volume adjustment from driver's seat. | Number of Channels 1 Class D Peak Power Rating (Watts) RMS Power Rating (Watts x Channels) - 4 Ohms 350 x 1 RMS Power Rating (Watts x Channels) - 2 Ohms 600 x 1 Bridged RMS Power Rating (Watts x Channels) Minimum Impedance Unbridged (Ohms) 2 Minimum Impedance Bridged (Ohms) THD at Rated RMS Power 1.0% Bulit-in Crossover - Low Pass Yes Built-in Crossover - High Pass High Pass Crossover Frequency (Hz) Low Pass Crossover Frequency (Hz) 32-320Hz Signal-to-Noise Ratio 80dB Bass Boost 0-12dB Bass Remote Included Fuse Rating 60A CEA-2006 Compliant Yes Maximum Power Wire Gauge Size 4 Gauge Warranty 1 Year