Boss Audio MR800 2-channel MOSFET Bridgeable Marine Power Amplifier
w/ Remote Subwoofer Level Control:
All MR Series amplifiers feature a unique rubber sealing door which tightly seals all control panel openings when not in use. It also uses in-line weatherproof connectors for all input and output connections, which are run through grommeted openings in end panels.

MR800 Marine Power Amplifier Features:

MAX POWER 2 OHM: 400w x 2
RMS POWER, 4 OHM: 125w x 2
MAX BRIDGED POWER, 4 OHM: 800w x 1
SIGNAL-TO-NOISE RATIO: >102 dB
THD: 0.01%
DIMENSIONS: 8-3/4" L