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 - Creative Audio
Amazon.com: JVC KS-DR1004D 400 Watt 4-Channel Bridgeable Amplifier for Car & Marine and RZR/ATV/UTV/Cart Motorsports : Electronics
JVC CS-DR421 DRVN Series 4" 2-way car speakers at Crutchfield
JVC 4VN-770 4 Channel Integrated Amplifier Incredible Pure Sound made 1971-1973 | eBay
JVC KS-DR1004D Class-D Compact 4 Channel Class-D Marine Power Amplifier
KS-DR3004|Amplifiers|JVC New Zealand - Products -
KS-DR1004D|Marine / MotorSports|JVC USA - Products -