Infinity M704A Marine Amplifier – SoundHub

Infinity M704A Marine Amplifier

  • Sale
  • $289.00
  • Regular price $599.00
Tax included.


Power delivered in style

Do you want to bring the party on board? Infinity's handsome M704A marine amplifier will add a lot of happy to your music, sending 70 watts RMS to each of four speakers. The amp could also power two speakers and a sub, in 3-channel mode. For even louder fun, you could bridge the amp to 2-channel mode and power a couple high-performance speakers with 200 watts RMS each. The amp features a coated circuit board and stainless-steel connectors that will stand up to the sun, salt, and spray.

Works with almost any system

Speaker-level inputs allow this amplifier to work in almost any system, even if you're keeping your boat's original radio. The separate high- and low-pass filters on the front and rear channels help maximize the performance of your speakers and subs.

Product highlights:

  • 4-channel marine 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
  • conformal-coated circuit board and stainless steel connections resist salt water corrosion
  • preamp and speaker-level inputs
    • high-level input adapter included
  • preamp outputs
  • fuse rating: 30A x 2
  • wiring and hardware not included with amplifier
    • 8-gauge power and ground leads recommended
  • dimensions: 14-1/8"W x 2-3/16"H x 7-3/8"D