Boss MC420B Compact Bluetooth Marine/UTV 2‑Channel Amplifier –

This listing is for a Boss Audio Systems MC420B 2-Channel Bluetooth Amplifier. Designed for motorcycles, UTVs, ATVs, and marine vehicles, this compact amp delivers crisp audio over Bluetooth and is built with a rugged, weather-resistant enclosure.

This is a new, open box item. It has never been used or installed but was removed from its original kit. The unit is sold as pictured, with included wiring harness — no speakers or remote included.

• Model: Boss MC420B

• Type: Compact Bluetooth Amplifier

• Power Output: 600W peak total (300W per channel)

• Channels: 2-Channel

• Connectivity: Bluetooth + 3.5mm Aux-In

• Use Case: Motorcycle, UTV, ATV, Marine, Powersports

• Weatherproof: Yes – sealed housing

• Condition: New Open Box – never installed

• Includes: Amplifier + integrated wiring (as shown)

✔ New, unused open box item
✔ Original wiring intact
✔ No cosmetic wear
✖ No retail packaging
✖ No speakers or volume controller included

• Ships within 1 business day

• Professionally packed for safe delivery

• Tracking number provided

• Domestic & international shipping available

🔊 Ideal for custom audio installs where only the amplifier module is needed.
🛒 Grab this new open-box unit at a below-cost price while it lasts!