Alpine V12 Expert 4 Channel Amplifier MRV-F405 Vintage Amp Made in Japan | eBay
Alpine PDX-F6 150w x 4 SQ Amplifier. Very Lightly Used with Original Box - One of Alpine's BEST Amps, Quiet & Very Under-Rated! $345 + S&H | DIYMobileAudio.com Car Stereo Forum
Alpine MRP-F300 V-Power Series 4-channel car amplifier — 50 watts RMS x 4 at Crutchfield
Amazon.com: Alpine MRV-F300 4-Channel Car Amplifier, 50 Watts RMS x 4 : Electronics