ST-4X SQ III
4-Channel SQ Class AB Amplifier delivering 70W 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 4-Channel SQ, the ST-4X SQ III is rated at 4x70W @4Ω, 4x125W @2Ω. It is 4Ω / 2Ω stable.Ideal for a plug-and-play SQ build, it pairs naturally with ESB 5000 and 8000 Series component speakers.
- Max Output
- 125 W
- Impedance
- 4Ω / 2Ω stable
Our actual price is below the manufacturer's advertised minimum — final price is shown in cart.
- Authorized dealer
- Free US shipping
- Manufacturer warranty
SKU: ZAP-AMP-ST4XSQIII-4CHAB
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 4-Channel SQ, the ST-4X SQ III is rated at 4x70W @4Ω, 4x125W @2Ω. It is 4Ω / 2Ω stable.
Ideal for a plug-and-play SQ build, it pairs naturally with ESB 5000 and 8000 Series component speakers.
Measured, not marketed
Power
| Configuration | Class AB 4-Channel SQ |
|---|---|
| RMS | 4x70W @4Ω, 4x125W @2Ω |
Electrical
| Class | Class AB |
|---|---|
| Impedance | 4Ω / 2Ω stable |
| Frequency Response | — |
Physical
| Weight | 13.2kg |
|---|---|
| EAN | 8033373005350 |
Datasheets, manuals & templates
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