Zapco ST-5B 5-Ch. Class AB Amplifier 13.5" Subwoofer Very small sealed enclosure volume

Very small sealed enclosure volume requirements

The port mouth is flared to minimize air-flow noises

referred to 1 W >50 dB (A-weighted

- Steel basket with anti-resonant painting

Large LED backlit push-button controls are easy-to-see and easy-to-use

Zapco ST-5B 5-Ch. Class AB Amplifier 13.5" Subwoofer Very small sealed enclosure volumeThe 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.