You have no items in your shopping cart.

Product was successfully added to your shopping cart.

Zapco Studio D Series ST-4D Full Range 4 Channel Amplifier 640 Watts RMS Class D

Be the first to review this product

Quick Overview

Zapco Studio D Series ST-4D Full Range 4 Channel Amplifier 640 Watts RMS Class D

Availability: Out of stock




4 Channel Full range class D

Power @ 2?: 4 x 160 watts

Power @ 4?: 2 x 320 watts

RMS Rated Power @ < 0.05%THD

Power @ 2?: 4 x 160watts

Power @ 4?: 4 x 100watts

Bridged @ 4?: 2 x 320watts

Class-D bridgeable 12V amplifier

4/2 channel bridgeable 12V amplifier

Stable into 4 ohms bridged or 2 ohms stereo load

PWM MOSFET power supply

18dB octave crossover slope

Variable FULL / LP / HP Electronic Crossover -Variable bass boost

RCA Signal input and output connectors

4-way protection circuitry

Thermal / over current / speaker short / DC

Tested voltage & THD: 14.4V & less than 0.05%

Dimensions in Inches: 6.7(W) x 2.2(H) x 7.87(L)

Additional Information

Model ST-4D
Brand Zapco
Condition New
Amplifier Class D
Number of Channels 4 Channel
Peak Power 640 Watts
Power at 4 Ohms 4 x 100w
Power at 2 Ohms 4 x 160w
Bridged Power 2 x 320w @ 4 Ohm
Crossover Variable FULL / LP / HP Electronic Crossover -Variable bass boost

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

  1. Be the first to review this product

Write Your Own Review

Only registered users can write reviews. Please, log in or register

1-3 Business Days

Vortex Audio Shipping Policy

  • We offer FREE standard shipping on all our items with NO minimums, for all orders shipped to a physical address within the continental US (faster shipping methods may be available for additional fee).
  • Free Shipping is only for physical residential or commercial destinations within the continental 48 United States. Please contact us for a shipping quote for shipping to PO BOX or to any destination outside of the 48 continental US states, including international locations (restrictions apply).
  • Some of our items do not ship to APO/FPO/PO Boxes or Internationally. Please contact us before making a purchase to check if specific item can be delivered to one of these destinations.
  • Delivery times, when specified, exclude weekends, holidays and handling. Delivery dates are estimated on previous shipments, and may slightly vary (unfortunately we cannot guarantee delivery times).
  • Most of our items are shipped via FedEx, UPS or USPS (we may, at our own discretion, switch shipping methods and shipping carriers with similar or better delivery time).
  • We only ship to the address provided at the time of checkout, the address cannot be changed after that (please verify the shipping address before confirming your payment).