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Item#: 9SIA34A2RG0770

Boss Audio 1000W 4 Channels Bridgeable Marine Amplifier

  • Boss Audio
  • Class AB
  • Bridgeable
  • Built-in Crossover
  • 1000 Watts
  • 250W x 4 @ 2 ohm
  • 100W x 4 @ 4 ohm

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

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.


Boss Audio
Marine Amplifier

Marine Amplifier

Amplifier Class
Class AB
Amplifier Channels
4 Channels
Built-in Crossover
Crossover Frequency Range
Variable Low Pass Crossover: 40 to 150 Hz
Bass Boost Control
0 - 18dB
Fuse Rating
40A x 1


Peak Power
1000 Watts
RMS Power
250W x 4 @ 2 ohm

100W x 4 @ 4 ohm
Bridged Power
500W x 2 @ 4 ohm


Frequency Response
6 Hz - 50 kHz
102 dB

Dimension & Weight

Physical Dimension
7.32" x 2.25" x 12.72"


Fully Marinized

Feature a unique rubber door which tightly seals all control panel openings when not in use.

It uses inline weatherproof connectors for all input and output connections

Tri-Mode Operation

Power & Protection LEDs

Remote Subwoofer Level Control

Input Sensitivity Selector
Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 90 days
  • Read full details

Do you own this product? Write a Review

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  • Josh M.
  • 8/14/2012 7:49:11 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks well!

Pros: Easy hook-ups, Newegg's fast delivery and great service, device is marinized, price was the best I could find, and it's got a 1 year manufacturer's warranty. Sounds incredible for the price! Remote subwoofer control is clutch! I can fine-tune the bass for each song, on the fly, with the control mounted right under the dash in my boat, which, coincidentally, is right where my subwoofer is installed! The remote control unit also emits a blue LED light, which looks cool at night. I wish my boat's gauge panel lights were blue to match it (they're red).

Cons: Only two minor complaints: 1. It runs a little hot. However, it hasn't shut off on me yet, and to be fair, I have it hooked up in a storage compartment on the port side of my boat where it doesn't get much airflow, and I've been out in 90+ degree heat most of the summer. I keep it turned up very loud for 5-10 minutes during a wakeboard set, and then turn the volume down between sets, but it's running for hours on end each time I go out. 2. The speaker and power terminals aren't your standard screw-down type. It took me some MacGuyver-type maneuvers to get it hooked up, but it works!

Like I said, these are minor complaints, and not enough to knock off an egg, just wanted others to be aware!

Other Thoughts: I have this amp running two 6.5" boat speakers (mounted on my wakeboard tower) and a 12" sub. I have channels 1 and 2 going to the tower speakers, and channels 3 and 4 bridged to the sub. And I've got the high-pass and low-pass filters adjusted accordingly. All other boat speakers are running directly from the head unit.

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