The Boss Audio MGR450B fits a standard gauge opening and delivers AM/FM reception, Bluetooth streaming, and rear USB/AUX connectivity in a compact marine-grade package. An IPX6-rated water-resistant face panel, conformal-coated circuit boards, and oversized controls stand up to sun, salt spray, and moisture, while the blue-backlit white LCD keeps your source and volume readable at a glance. Full preamp outputs make it straightforward to add marine amplifiers or subwoofers down the road.

Specifications:

• Marine digital media receiver with built-in amplifier
• 240 watts peak power
• AM/FM tuner with 18 presets (12 FM / 6 AM)
• Weather Band reception
• Bluetooth audio streaming
• Rear USB and AUX inputs
• Preset EQ modes
• Full preamp outputs for system expansion
• White LCD display with blue backlit illumination
• IPX6-rated water-resistant face panel
• Waterproof, conformal-coated circuit boards
• Gauge-style chassis
• Dimensions (H x W x D): 4.5" x 4.5" x 3.325"

In the Box:

• MGR450B stereo head unit
• Mounting hardware
• Owner's manual

Resources:

• Owner's Manual (PDF)

⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.