$240 Firm. Pickup near CSULB Big powerful 650.4 4 channel amp. I used this to power my audiofrog GB60s and my 3" midranges. Slightly underrated amp This is closer to 150RMS each Chanel. This amp Is large it's about the size of a JL 1000/1 amp This Kicker ZX650.4 4-channel amplifier will power up your music with 120 watts RMS to each of your four speakers or components, perfect for handling your front and rear speakers.As another option, you can put the amp in 2-channel mode to drive a couple of subwoofers with up to 325 watts RMS each. This amp will run reliably even when pushed hard, due to its heavy-duty internal components and the efficient cooling system it employs as it boosts your music's power. Product highlights: 4-channel car amplifier 120 watts RMS x 4 at 4 ohms (160 watts RMS x 4 at 2 ohms) 325 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode) CEA-2006 compliant variable high- and low-pass filters (50-200 Hz, 12 dB/octave) variable bass boost (0-18 dB at 40 Hz) Class AB amp technology Fail-Safe Integration Technology eliminates noise from your vehicle's electrical system preamp and speaker-level inputs (speaker-level input requires an optional adapter) optional wired ZXRC Remote Bass Control available for rear channels 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier fuse rating: 40A x 2 20"W x 2-1/8"H x 9-5/8"D