Kenwood made their reputation building car amplifiers that offer no-nonsense reliability and superior sound quality. The compact KAC-8404 4-channel amplifier features a rugged cast-aluminum chassis more than 40% smaller than its predecessor, yet it'll still pump out 50 watts RMS to each of 4 channels — ideal for improving the performance of the front and rear speakers in your system. Or, you can bridge the amp to 2-channel mode and drive a couple of subs with 180 watts RMS each without straining your car's electrical system.

Built-in high- and low-pass filters adjust the amplifier output so you'll get the best sound possible from your speaker or subwoofer combo, while the variable bass boost lets you dial in up to 18 dB of bass boost, if you want to fatten up the sound.

The front-mounted controls allow you to tweak the sound easily, and convenient front-side connections make setup a snap. Signal sensing turn-on and speaker-level inputs allow these amps to hook up to factory radios that don't have preamp level outputs.

Details:

• 4-channel car amplifier
• 50 watts RMS x 4 at 4 ohms (75 watts x 4 at 2 ohms)
• 180 watts RMS x 2 bridged output at 4 ohms (4 ohm stable in bridged mode)
• 2-, 3-, and 4-channel operation
• CEA-2006 compliant
• high-pass (12 dB per octave) and low-pass (24 dB per octave) filters variable from 50 to 200 Hz
• variable bass boost (0-18 dB at 40 Hz)
• cooling fan
• MOSFET power supply
• speaker-level inputs with signal sensing turn-on
• preamp-level inputs
• fuse rating: 40A x 1
• 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
• 11-1/16"W x 2-5/16"H x 9-7/8"D