JVC KS-DR2104DBT Bluetooth 4-Channel Amp + 2 Pairs CS-MS620 6.5" Marine Speakers

JVC CS-MS620 6-1/2 inch 2-Way Marine Speakers featuring Water Resistant Polypropylene Cone / Durable Rubber Surround - • Power Handling Capacity (Peak Power): 100W • Power Handling Capacity (RMS): 30W • Impedance: 4 ohms • Sound Pressure Level: 87 dB/ W at 1m • Frequency Response: 60Hz-20kHz • Cutout Diameter: 5 inch • Mounting Depth: 2-5/16 inch JVC KS-DR2104DBT 4-Channel Compact Digital Amplifier featuring Bluetooth for Compact Car, Marine, UTV and Motorcycle / Max Power 600W / 50W RMS x 4 @ 4 ohms - • IP67/IP66 Waterproof & Dustproof • ASTM B117 Rustproof • Vibration-proof • Increased Power Flow • High Quality Capacitors • Magnetic Shielding • Easy-to-Use Waterproof Bluetooth Remote Control • Qualcomm Bluetooth 5.0 • Versatile Installation Specifications • Audio unit • Max Power Output: 600W • Rated Power Output: • Stereo (4Ω) 50W x 4 (20Hz–20kHz, ≤1.0% THD) • Stereo (2Ω) 75W x 4 (1kHz, ≤1.0% THD) • Bridged (4Ω) 150W x 2 (1kHz, ≤1.0% THD) • Speaker Impedance: 4Ω (2Ω to 8Ω allowable) • (Bridged connection: 4Ω to 8Ω allowable) • Frequency response (+0, –3dB): 10Hz–20kHz • Signal to noise ratio: 89dB • Low pass filter frequency (–12dB/oct.): 50Hz–200Hz (variable) • High pass filter frequency (–12dB/oct.): 50Hz–200Hz (variable) • Preout: 5V (Max)