Hertz Cento Power CP 1.700 Mono 1 Channel Sub Amp Subwoofer Amplifier 700w RMS
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The Hertz Cento Power CP 1.700 is a mono Class D subwoofer amplifier delivering 700W RMS into 2 ohms (400W RMS into 4 ohms), from Hertz's Cento Power range. It features speaker-level inputs, balanced input circuitry, and a 9–18V operating range suitable for conventional and electric vehicles.
For more output, the Hertz Cento Power CP 1.2K delivers 1200W RMS into 2 ohms.
Key specifications
- Channels: 1 (mono), Class D
- Output power: 700W RMS x 1 at 2 ohms, 400W RMS x 1 at 4 ohms
- Minimum load: 2 ohms
- Efficiency: 89%
- Inputs: Pre-In (0.32 to 8V RMS) and Speaker-In (1.6 to 40V RMS)
- Low-pass filter: 50 to 250 Hz at 24 dB/oct
- Subsonic filter: 25 Hz at 24 dB/oct; bass boost 0 to 9 dB at 50 Hz
- Operating voltage: 9 to 18V DC; fuse 2 x 25A
- S/N ratio: 113 dBA
Overview
The CP 1.700 is a compact mono amplifier built around an ADC (Advanced Class-D) circuit housed in an aluminium diecast body. It offers over 89% efficiency and is fully bridgeable.
- Power-to-size ratio: Compact aluminium diecast body with over 89% efficiency; fully bridgeable.
- Connections: Durable long-term Molex connections for straightforward installation.
- Design: LED status indicator, solid machined terminal block, and a removable top panel protecting the control panel.
- Top panel controls: All adjustments remain accessible after installation.
- Control settings: Adjustable input levels, high/band/low-pass crossover filters, bass boost, variable phase control, and subsonic filter.
- Universal Speaker Simulator: Integrated circuit adapts input sensitivity from 1.6 to 40V RMS for compatibility with new class SB head units.
- Electric vehicle ready: Operates across 9 to 18V DC.
- Noise rejection: Balanced input circuitry for both Pre-In and Speaker-In connections.
- Auto remote turn-on/off: Activated by OEM radio speaker outputs.
- Full-range pre-outs: Available with both Speaker-In and Pre-In level inputs.
- HRC 02 remote control compatible: Allows customised subwoofer level adjustment.
High-noise rejection and balanced input circuitry preserve audio integrity, while full-range pre-outs allow flexible system expansion. Top panel controls remain fully accessible after fitting.
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Specification
| Channels | 1 |
|---|---|
| @ 1 Ch | 2 Ω |
More specs
| |
What's Included
- Hertz Cento CP 1.700
Hertz
About the Hertz CP 1.700
From our tech experts at CEN
A monoblock amplifier for subwoofer duty from the Hertz Cento line, rated at 700w RMS. Everything it makes goes to the bass.
Who it suits
Anyone adding a subwoofer that needs real power behind it.
Our tech experts advise
Power figures mean little until the amplifier is matched to the speakers and the gains are set with a meter rather than by ear. It needs a fused feed from the battery on the correct cable gauge. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
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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: 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 Hertz CP 1.700 produce?
A: It delivers 700W RMS into 2 ohms and 400W RMS into 4 ohms, measured at 1% THD. The minimum load is 2 ohms.
Q: Can the CP 1.700 connect to a factory radio without RCA outputs?
A: Yes. It has balanced speaker-level inputs (1.6 to 40 V RMS) with a Universal Speaker Simulator, and it can switch itself on automatically from the radio's speaker outputs.
Q: What fuse rating does the CP 1.700 use?
A: The CP 1.700 uses 2 x 25 A fuses at its nominal 11 to 15 V DC supply. Choose a wiring kit rated for this current.
