Authorized Dealer
Zapco ST-6X SQ III — Amplifier photo
Zapco · Amplifier

ST-6X SQ III

6-Channel SQ Class AB Amplifier delivering 100W RMS of audiophile Zapco power.

Committed to Excellence. The ST-X III series is Zapco's plug-and-play platform of SQ amplifiers and integrated DSP-amplifier combos. It sits in the versatile center of the Zapco lineup, engineering competition-grade sound into installs that go in fast and tune easily. Configured as Class AB 6-Channel SQ, the ST-6X SQ III is rated at 6x100W @4Ω, 6x125W @2Ω. It is 4Ω / 2Ω stable. Ideal for a plug-and-play SQ build, it pairs naturally with ESB 4000 and 5000 Series component speakers.

SQDAILY
Max Output
125 W
Impedance
4Ω / 2Ω stable
$639.99

Our actual price is below the manufacturer's advertised minimum — final price is shown in cart.

View Cart
  • Authorized dealer
  • Free US shipping
  • Manufacturer warranty

SKU: ZAP-AMP-ST6XSQIII-6CHAB

Overview

Built for the install, not the spec sheet

Committed to Excellence. The ST-X III series is Zapco's plug-and-play platform of SQ amplifiers and integrated DSP-amplifier combos. It sits in the versatile center of the Zapco lineup, engineering competition-grade sound into installs that go in fast and tune easily.

Configured as Class AB 6-Channel SQ, the ST-6X SQ III is rated at 6x100W @4Ω, 6x125W @2Ω. It is 4Ω / 2Ω stable.

Ideal for a plug-and-play SQ build, it pairs naturally with ESB 4000 and 5000 Series component speakers.

Specifications

Measured, not marketed

Power

ConfigurationClass AB 6-Channel SQ
RMS6x100W @4Ω, 6x125W @2Ω

Electrical

ClassClass AB
Impedance4Ω / 2Ω stable
Frequency Response

Physical

Weight23.1kg
EAN8033373005367
Documents

Datasheets, manuals & templates

No documents attached yet.

Designed For

Which build is this for?

SQ

Sound Quality

Detail, staging and tonal accuracy.

See matching SQ builds
DAILY

Daily Driver

Balanced everyday upgrade.

See matching DAILY builds
Complete the System

Pair this with