Infinity's Reference 704a amplifier will add plenty of muscle to your music without breaking a sweat, and it'll look good doing it. This 4-channel powerhouse will send 70 watts RMS to each of the front and rear speakers in your car. Into planning ahead? You could use this amp in 2-channel mode now to drive a couple subwoofers with 200 watts RMS each, then reassign it to your front and rear speakers when you get a bigger sub amp.

Product Highlights:

• 4-channel car amplifier
• 70 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
• 200 watts RMS x 2 at 4 ohms in bridged mode (4-ohm stable in bridged mode)
• Class D amp technology
• variable high- and low-pass filters (32-320 Hz, 12 dB/octave) on front and rear channels
• preamp and speaker-level inputs
• preamp outputs
• ADAS and HALOsonic inputs for advanced integration in select vehicles
• fuse rating: 30A x 2
• 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
• 14-3/4"W x 2-3/8"H x 7-7/16"D

warranty: 1 year