Zapco ST-1000XM III Amp Mono 1 Channel Class D Subwoofer Amplifier with Remote
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The Zapco ST-1000XM III is a mono, single-channel Class D subwoofer amplifier from Zapco's ST-X III series, delivering 1000W at 1 ohm, 700W at 2 ohms and 500W at 4 ohms. It includes a dash-mount remote gain control as standard.
The included remote is the Zapco ST-BR remote level control, supplied with Zapco's ST-X mono amplifiers. Higher-powered versions in the same series are the ST-1500XM III and ST-2000XM III.
Key specifications
- Model: ST-1000XM III
- Channels: 1 (mono), Class D
- Power @ 1 ohm: 1 x 1000W
- Power @ 2 ohms: 1 x 700W
- Power @ 4 ohms: 1 x 500W
- Frequency response: 10Hz – 200Hz ±1dB
- Signal to noise ratio: >100dB
- Efficiency: >85%
- Dimensions: 160 x 58 x 325 mm (W x H x L, overall)
ST-1000XM III
Mono Class D Amplifier
A single-channel Class D bass amplifier built on a new aluminium chassis, giving precise control over subwoofer output.
- Variable input gain control
- Variable electronic crossover
- Variable subsonic filter
- Variable bass boost control
- Variable centre frequency for bass boost
- Variable phase control
- Strappable to run a pair of amps on a single voice coil
- Dash-mount remote gain control included
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Specification
| Power @ 1Ω | 1 x 1000 watts |
|---|---|
| Power @ 2Ω | 1 x 700 watts |
| Power @ 4Ω | 1 x 500 watts |
| Frequency Response | 10Hz to 200Hz ±1dB |
| Net Dimensions (mm) | 160(W) x 58(H) x 300(L) |
| Overall Dimensions (mm) | 160(W) x 58(H) x 325(L) |
More specs
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What's Included
- Zapco ST-1000XM III
- Zapco ST-BR remote level control
Zapco
About the Zapco ST-1000XM III
From our tech experts at CEN
The Zapco ST-1000XM III is a mono Class D subwoofer amplifier from Zapco's ST-X III series, rated at 1000W RMS into 1 ohm, 700W at 2 ohms and 500W at 4 ohms. The aluminium chassis measures 160 x 58 x 325 mm overall. A Zapco ST-BR dash-mount remote gain control is included in the box.
Who it suits
This amp suits those building a dedicated high-power bass system who need precise control over subwoofer output. On-board variable controls include gain, electronic crossover, subsonic filter, bass boost and phase. For a lower-power mono option, the Zapco ST-1B delivers 200W Class AB mono output.
Our tech experts advise
Two ST-1000XM III amplifiers can be strapped together to drive a single voice coil subwoofer. Input sensitivity is adjustable from 0.25V to 5V, and the frequency response runs from 10Hz to 200Hz ±1dB. Installation is priced per vehicle; see our Nottingham fitting service for details.
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What wiring do I need to install this amplifier?
A: You will need an amplifier wiring kit sized to the amplifier's power draw, typically including power and earth cable, a fuse, RCA leads and a remote wire. CEN stocks complete wiring kits, and the amplifier's fuse rating is the guide to the cable gauge required.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
Q: How much power does the Zapco ST-1000XM III produce?
A: The ST-1000XM III is rated at 1 x 1000 watts at 1 ohm, 1 x 700 watts at 2 ohms and 1 x 500 watts at 4 ohms.
Q: Does the ST-1000XM III come with a bass remote?
A: Yes. It has a dash mount remote gain control. Zapco includes the ST-BR remote level control with its ST-X mono amplifiers.
Q: Can two ST-1000XM III amplifiers be linked?
A: Yes. The ST-1000XM III is strappable, so a pair of amps can be used on a single voice coil.
