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51 dB SPL Effective Piston Area (Sd) 98
1 x Remote control input Input sensitivity RCA / Cinch 0
The sharp look matching the Black and Copper theme of the AP amplifiers is only the beginning
allowing the tweeter to reproduce very high frequencies
that can be easily installed in the original installation position of the vehicle in an acoustically optimized way with the matching FlexMount adapter ring
Zapco ST-4B 4-Ch. Class AB Amplifier 20 Channel DSP 51 dB SPL Effective PistonThe ST B Series. Great sound for every day use. Zapco has a reputation for sound reproduction and quality that is unsurpassed. It is our dedication to sonic purity and our passion for performance that built Zapco's reputation. With all the new amps coming into the market, not one has been any threat to Zapco's standing as the premium amp and processor line. Just check the audio competition scene and the audio forums. The pros know what to use to win.