Pyle PLMRA410BT 4-Channel Bridgeable Marine Bluetooth Amplifier — 400W Waterproof

The Pyle PLMRA410BT is a bridgeable 4-channel marine amplifier built to deliver reliable, weather-resistant audio for boats. It provides a 400-watt MAX output via a dual MOSFET power supply and delivers Max power: 100 watts x 4 channels. Wireless audio is handled by Bluetooth version: 2.1 with a Bluetooth wireless range: 25-Feet and a smart auto connect that remembers paired devices. Designed for marine environments, this amp carries a waterproof marine-grade rating of IP 01 and uses silver-plated stereo speaker terminal connectors to resist corrosion. Its rugged construction includes a heavy-duty aluminum alloy heatsink along with thermal overload and speaker short protection, plus an LED light indicator to help prevent short-circuit conditions and protect your boat’s electrical system. Controls and audio tuning are flexible: the unit features a bridge mode selection switch, a high or low electronic crossover network, and dual adjustable gain level controls. Additional protections and convenience features are built in to ensure stable operation and easy integration. Technical Specifications: - Amplifier class: AB - Bluetooth version: 2.1 - Bluetooth wireless range: 25-Feet - Max power: 100 watts x 4 channels - Fuse type: 20-amp - Input gain impedance adjustment: 1 to 300mV - Frequency response: 15Hz to 30kHz +/- 3dB - Input impedance: 10k ohms (Low), 100-ohm (High) - Input sensitivity: 250mV (Low), 2.5V (High) - T.H.D.: <0.04% - S/N ratio: 95dB - Power supply: DC 12-volt - Matching speaker impedance: 4 to 8 ohms - Color: White - Dimensions (L x W x H): 8.0 x 7.9 x 2 inches - Weight: 4.13 pounds - Manufacturer warranty: 1-year warranty This compact marine amplifier combines corrosion-resistant hardware and multiple protection features with Bluetooth convenience and flexible crossover/bridging options for boat audio systems.