Brand

Skar, Alpine, Kenwood, Infinity

Skar Audio RP-75.4AB 500 Watt 4 -Channel $109 - 500-Watt MOSFET 4-Channel Class A/B Power Car Amplifier - RMS Power at 2 Ohms: 125 Watts x 4 Channels - RMS Power at 4 Ohms: 75 Watts x 4 Channel - User Adjustable Controls: Gain, Variable LPF, HPF, Bass EQ Switch (0, +6, +12 dB) - 4 Way Protection Circuitry | Frequency Response: 20 Hz - 20,000 Hz - Signal to Noise Ratio: 105 dB Alpine MRV-M500 (2) $130 & $120 (w/ missing remote screw) Product highlights: mono subwoofer car amplifier 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms) CEA-2006 compliant variable low-pass filter (50-400 Hz, 24 dB/octave) variable bass boost (0-12 dB at 50 Hz) Class D amp with MOSFET power supply preamp and speaker-level inputs preamp outputs Remote Sensing automatic turn-on when using speaker-level inputs optional RUX-KNOB.2 wired remote level control gold-plated screw terminals fuse rating: 30A x 2 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier 8-1/4"W x 2-3/16"H x 7-15/16"D Kenwood KAC-8402 4-channel Amp $100 Product highlights: 4-channel car amplifier 60 watts RMS x 4 at 4 ohms (90 watts x 4 at 2 ohms) 180 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode) front channel high-pass filters (50-200 Hz at 12 dB per octave), rear channel high- and low-pass filters (50-200 Hz with 12 dB/octave high-pass and 18 dB/octave low pass) bass boost (6 dB at 90 Hz), channels 3 and 4 MOSFET power supply CEA-2006 compliant Tri-way capable (Tri-Way crossover required) preamp- and speaker-level inputs preamp outputs requires 8-gauge power and ground leads — wiring and hardware not included with amplifier fuse rating: 40A x 1 15"W x 2-7/16"H x 11-5/16"D Infinity Reference 7541a 4-channel Amp $125 Product highlights: 4-channel car amplifier 111 watts RMS x 4 at 4 ohms (139 watts x 4 at 2 ohms) 278 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode) front and rear variable high-/low-pass filters (32-320 Hz, 12 dB/octave) variable bass boost (0-12 dB at 50 Hz) MOSFET power supplies CEA-2006 compliant Tri-way capable (Tri-Way crossover required) preamp- and speaker-level inputs preamp outputs 8-gauge power and ground leads with a 60A fuse recommended — wiring and hardware not included with amplifier fuse rating: 30A x 2 16-3/8"W x 2-11/16"H x 12-1/8"D