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Free Air Resonance (Fs) 25
The technology that makes this much power possible in such a compact chassis is our advanced NexD™ high-speed switching design
Very small sealed enclosure volume requirements
referred to 1 W >50 dB (A-weighted
Zapco ST-5B 5-Ch. Class AB Amplifier 13.5" Subwoofer Free Air Resonance (Fs) 25The 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.
