Boss MC450 Audio System

Package includes four 3" water-resistant speakers and 4-channel amplifier

Item #: 104MC450

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3 Reviews

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Weather the weather

Do you have a motorcycle or an ATV without a way to hear your favorite tunes, or a boat that needs accompaniment? Do you want the music to keep playing whatever the weather? The MC450 audio system from Boss can satisfy your needs. It's made to be weatherproof: the MC450's components, including the speakers, circuit boards, and amplifier connections, have been specially coated and sealed to protect them from water.

Ready for anything

The MC450 system boasts four 3” speakers in streamlined chromed plastic pods, with adjustable brackets that attach to a handlebar or rail, all powered by a compact 4-channel amp. Connect your media player to the system's 1/8" or RCA input jacks and the system's 1000 watts of power will rock the outdoors. Wherever you go, the MC450 can handle the conditions and pump out the tunes.

Product Highlights:

  • sound system designed for motorcycles, ATVs, UTVs, and boats
  • system includes 4-channel amplifier and four 3" enclosed speakers
  • chromed plastic speaker pods
  • peak power output: 1000 watts
  • includes adjustable mounting brackets
  • marine-grade construction for weather resistance
  • frequency response: 80-15,000 Hz
  • amp dimensions: 4-1/16"L x 3-1/8"W x 1-5/8"H
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • 4 Speakers (each with 37" wire and mounting bracket attached)
  • 4-channel amp (with wiring attached)
  • Wired volume control (attached to amp with 76" cable)
  • Four 0.235" spacers
  • Four 0.185" spacers
  • Four 0.155" spacers
  • Four 0.120" spacers
  • Four 0.078" spacers
  • Four 0.040" spacers
  • Four M10x45mm bolts (installed)
  • Four M10 Split lock washers (installed)
  • Four M10 Flat washers (installed)
  • Four M10x30mm bolts
  • Two 10-amp ATO fuses (one installed/one spare)
  • Four 3/4" Self-tapping screws
  • 4 Small split lock washers
  • 4 Small flat washers
  • User manual
  • Warranty information
  • Boss Facebook note

Product Research


Amplifier Inputs: The amp has two inputs; RCA and mini-jack. Both are live simultaneously, so if both are connected, selection must be made by turning one source off.

Note: If both sources connected to the line inputs (RCA and 3.5mm) are turned on, it's likely you'll hear static through the speakers in addition to music, even if one is muted or paused.

Speaker Mounting: The speakers are designed to mount to a round tube using the adjustable stainless steel clamps. Six different spacer sizes are included for use with tubes from 5/8" to 1-1/2" (approximately). Once the speakers are in place, but before the brackets are tightened, you can adjust the mounting angle. After mounting, the speakers can still swivel almost 360°.

Wiring: All the wiring is fixed length and already attached to the speakers and amplifier. Each speaker has a 37" input wire attached and the wires from all four speakers are attached to a single Molex plug. The speaker output wires and the power and ground wires attached to the amplifier are routed together for 18" in a nylon sleeve. Three inches from the sleeve, the speaker wires are attached to a Molex plug (which connects to the plug attached to the speaker wires). The power and ground wires extend 6-1/2' beyond the sleeve with a 10 amp fuse in-line with the power wire.

Volume: The rotary volume control has a 76" cable attached that plugs into the amp and mounts in a round hole in a panel, 0.27" diameter.


  • Speakers:
    • Width: 4-1/8"
    • Height: 4-1/4"
    • Mounting Height: 5-1/2" (above center of the bar to which the speaker is mounted)
    • Depth: 4-3/4"
  • Amplifier:
    • Width: 2-5/8" (3-1/8" including mounting flange)
    • Height: 1-5/8"
    • Length: 4-3/8" (5" including wiring)


  • Voltage: 10-16 volts DC
  • Max Power: 1,000 watts
  • THD: <0.1%
  • Signal to Noise Ratio: >85 dB
  • Channel Separation: >50 dB
  • Frequency Response: 80 Hz - 15 kHz
  • Sensitivity: 150 mV - 1 V

Extended Warranty: Units purchased from Crutchfield after 3/1/2015 carry an extended warranty relative to purchases from Boss' standard dealer network. The new warranty is 3 years parts and labor.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Boss MC450 Audio System Reviews

Average Customer Review:

3 reviews
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Written By JUNE, CLARKSVILLE, TX on Tuesday, December 30, 2014

Crutchfield Customer Review (What's this?)


great deal

Written By junior, seminole oklahoma on Friday, July 25, 2014

Crutchfield Customer Review (What's this?)

Great sound system for a motorcycle. Sounds great and looks great.

Great product

Written By Kevin, Greenville, NC on Thursday, June 19, 2014

Crutchfield Customer Review (What's this?)

This is a great product, and very well priced for what you get in the box. The amp is very small and fits nicely into many cramped areas. There is also a remote volume control with this kit, 2 length bolts for the clamps depending on your mounting choice. The wiring is already done, just plug and play once hooked to power and ground. There is plenty of volume in this package as well. Good overall product and value.

Pros: Ease of installation, you just need to wire into power and ground.

Cons: All 4 speakers are wired into one plug making the process of hiding the wires a little more difficult.

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