Zapco 4-Channel Sound Q Class A/B Amplifier

Zapco ST-4X SQ 4-Channel Sound Q Class A/B Amplifier

  • $229.99

This item is currently out of stock.

Features and Functions

4-Channel, Full Range, Class A/B
SQ Upgrades: Op-amps, Caps, Etc.
Tiffany style Panel Mount RCA’s
RCA and Speaker Level Inputs
Variable input gain control
Variable electronic crossover
Auto-on with Speaker level inputs
Compact chassis
Variable bass boost control


Power @ 4?: 4 x 65 watts
THD @ Rated Power < 0.5% THD
Power @ 2?: 4 x 95 watts
Power Bridged @ 4?: 2 x 190W RMS
Signal to Noise Ratio > 90dB
THD + Noise < 0.2%
Channel Separation >60dB
Frequency Response 15Hz to 30KHz ±1dB
Input Sensitivity .25v to 5v
Dimensions in mm: 160(W) x 52(H) x 282(L) Overall: 160(W) x 52(H) x 320(L)