Amazon.com: Massive Audio EX44 - Car Audio 800 Watt, 200w x 4 RMS, Nano Edge Series, 4 Channel Car Amplifier, Bass Boost : Electronics
Roland KC-600 Keyboard Amplifier - 200 watts, 4 Channel Stereo Mixer – Easy Music Center
Amazon.com: Pyle Auto 4-Channel Marine Amplifier - 200 Watt RMS 4 OHM Full Range Stereo with Wireless Bluetooth & Powerful Prime Speaker - High Crossover HD Music Audio Multi Channel System PLMRMB4CB,Black : Electronics
ZR 4-Channel Class D Amplifier 4 x 200 Watts Rms @ 4-ohm
American Pro 4 channel Car Stereo Amplifier Model V.S.-1403 200 W x-over LPF | eBay
Rockford Fosgate Prime Series R2-200X2 200W 2-Channel Amplifier
JVC KS-DR2004D 4-Channel 200 Watt Compact Digital Amplifier for Compact Car, Marine, UTV and Motorcycles - Creative Audio