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Zapco ST-1B
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ST-1B

Class AB, Mono — Power 2Ω: 1 x 300W, 4Ω: 1 x 200W

$159.99MSRP · USD

The ST-1B is a mono Class AB amplifier in Zapco's ST-B Series, offering dedicated subwoofer power with a subsonic filter, phase control, and variable LP crossover at an accessible price.

Key Features

  • Mono, Class-AB amplifier
  • MOSFET power supply
  • RCA input and output
  • Variable LP electronic crossover
  • Variable bass boost
  • Phase control 0°–180°
  • Subsonic filter

Power Output

4 Ω Mono1 × 200 W
2 Ω Mono1 × 300 W

Performance

Amplifier ClassAB
Channels1
Signal-to-Noise> 97 dB
THD at Rated Power< 0.2%
Frequency Response10 Hz – 30 kHz ±1 dB
Tested Voltage14.4 V

Connections & Controls

InputsRCA
OutputsRCA
GainVariable input gain control

Dimensions

Overall (L × W × H)310 × 182 × 52 mm
Chassis (L × W × H)280 × 182 × 52 mm

Product Details

BrandZapco
SeriesST-B
ModelST-1B
SKUST-1B
EAN8033373003523
Inquire to Order More ST-B

Genuine product · Authorized U.S. dealer · Drop-shipped direct

Documentation

Product Page at Zapco