Kenwood Excelon XR901-5, 5-channel car amplifier — 60 watts RMS x 4 at 4 ohms + 600 watts RMS x 1 at 2 ohms

Product Highlights:

• 5-channel amplifier
• 60 watts RMS x 4 + 400 watts RMS x 1 at 4 ohms
• 75 watts RMS x 4 + 600 watts RMS x 1 at 2 ohms
• 150 watts RMS x 2 bridged at 4 ohms + 600 watts RMS at 2 ohms
• CEA-2006 compliant
• variable high- and low-pass filters on front and rear channels (50-200 Hz, 12 dB/octave)
• variable low-pass filter on subwoofer channel (50-200 Hz, 24 dB/octave)
• Class-D amplifier design
• cooling fan
• frequency response: 20-20k Hz
• preamp inputs
• fuse rating: 40A x 3
• 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
• 10-1/4"W x 2"H x 8"D
• warranty: 2 years

Car amps have come a long way. Kenwood's Excelon XR900-5 car amplifier can power your entire audio system while taking up an astonishingly small amount of space — it's about the size of a piece of computer paper, and it stands only 2" tall. But this compact 5-channel workhorse will send 60 watts RMS to each of your front and rear speakers, along with up to 600 watts RMS to your subs. You could also use the XR900-5 in 3-channel mode to drive a pair of high-performance speakers or components with 150 watts RMS each, while still feeding 600 watts RMS to your sub.