Blaupunkt GTA 470 SF 4-channel car amplifier — 70 watts RMS x 4 at Crutchfield
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Amplifier Blaupunkt Gta-470 Sf Sound Amplifier Subwoofer In The Car Audio For Cars Speakers Board Stereo Dl Power Monoblock Channel Preamplifier - Industrial Computer & Accessories - AliExpress
Blaupunkt GTA 470 4-Channel Car Amp for sale online | eBay