Zapco ST-6X SQ III LE 6-Channel Class AB Sound Quality Amplifier
Zapco ST-6X SQ III LE 6-Channel Class AB Sound Quality Amplifier
The Zapco ST-6X SQ III LE is a 6-channel, full-range Class AB amplifier built for sound quality. It makes 6 x 100 W at 4 ohms, 6 x 150 W at 2 ohms, or 3 x 300 W bridged into 4 ohms, enough to run front components, rear speakers and a subwoofer from one chassis. The LE version upgrades the op-amps and capacitors, moves to a new aluminum chassis with Tiffany-style RCA jacks, and adds speaker-level inputs with auto turn-on.
Part of the Zapco ST-X III Series.
Highlights
- 6-channel, full-range Class AB design
- Sound-quality upgrades to the op-amps and capacitors
- Tiffany-style panel-mount RCA jacks
- RCA and speaker-level inputs, with auto turn-on on speaker-level
- 2/4/6-channel input mode selector
- Variable input gain, electronic crossover and bass boost
- New ST-X III LE aluminum chassis
Best for
A complete system from one amplifier: front stage, rears or center, and a bridged sub channel. For more bass, add an ST-2000XM III LE.
Specifications
| Type | 6-channel Class AB, full range |
|---|---|
| Power, 4Ω | 6 x 100 W |
| Power, 2Ω | 6 x 150 W |
| Power, bridged 4Ω | 3 x 300 W RMS |
| THD at rated power | < 0.5% |
| THD + noise | < 0.05% |
| Signal-to-noise ratio | > 95 dB |
| Channel separation | > 60 dB |
| Frequency response | 15 Hz – 30 kHz ±1 dB |
| Input sensitivity | 0.25 V – 5 V |
| Dimensions, net (W x H x L) | 160 x 58 x 450 mm |
| Dimensions, overall (W x H x L) | 160 x 58 x 475 mm |
Download the Zapco ST-X III owner's manual (PDF)
Why buy Zapco from ShopAlumapro
ShopAlumapro is an authorized Zapco dealer. Orders of $499 or more ship free, and we can install your Zapco amplifier at our shop in Cary, Illinois. See installation or talk to us about your build.
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