Pyle 6-Channel Audio Marine Amplifier - Compact Power 600 Watt RMS 4 OHM Full Range Stereo with Volume Bass Treble Rotary Control - Wireless Bluetooth Receiver Speaker & LCD Digital Screen PFMRA640BB
Amazon.com: Genius Audio GHD-3000 Compact Full Range Car Amplifier Monoblock 3000 Watts-RMS Class-D 1-Ohm Stable Bass Boost Smart Cooler : Electronics