


Phoenix Gold ZR6004R Amp ZR Series Class D 4 Channel Amplifier With Bass Remote
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The Phoenix Gold ZR6004R is a 600W 4-channel Class D amplifier from the ZR Series, rated at 4 x 105W RMS at 4 ohms and supplied with a bass remote. It is designed for compact installations where space is limited, suiting speaker upgrades and small subwoofer systems.
Key specifications
- Channels: 4 (Class D)
- RMS power: 4 x 105W @ 4 ohm / 4 x 175W @ 2 ohm
- Bridged: 2 x 350W @ 4 ohm
- Frequency response: 12Hz – 22kHz
- Filters: HPF and LPF 40Hz – 6kHz (12dB/Oct)
- Bass boost: 0 to +18dB @ 45Hz
- Inputs: high and low level, auto turn-on
- Fuses: 2 x 20A
- Dimensions: 254 x 160 x 48.3mm
- Weight: 1.76kg
- Bass remote: included
ZR6004R 4-Channel Amplifier With Bass Remote
The ZR6004R is a 600W 4-channel Class D amplifier with a compact design suited to even the smallest installs. Its high-grade connection terminal delivers clean, crisp power to all connected components. A bass remote is included, giving full control over your sound.
Key Features
- ZR Series compact amplifier with Class D design
- Real-power amplifier built with the latest Class D technology
- Full-function filters
- Low and high-level input
- Autostart on high-level input
- Balanced differential input design
- High-grade terminals
- High-grade aluminium chassis
- Fanless design
- Unique HP & LP function 12dB filter from 40Hz–6kHz to accommodate active filtering for midrange and tweeter
- Pair with an aftermarket head unit for a bandpass filter in an active front system
- Mono amp subsonic filter
- Remote gain controller
- Short, thermal and overload protection circuits
- Minimum 10% power margin (1000W model delivers over 1500W RMS under low load)
The ZR6004R delivers 4 x 175W at 2 ohms, 4 x 105W at 4 ohms, and 2 x 350W bridged at 4 ohms, giving it versatility across a range of impedance configurations. This adaptability allows it to integrate into diverse audio setups, from power-hungry builds to more controlled installations.
At 254 x 160 x 48.3mm, it fits easily into space-restricted installs without sacrificing performance.
Full-function 12dB high-pass and low-pass filters, extended to 6kHz, provide precise frequency control so you can tailor the audio output accurately. A low-level differential balanced input further improves compatibility and signal fidelity.
The ZR6004R includes full circuit protection against short circuits, thermal overload and electrical faults. Its fanless design ensures efficient, quiet operation over the long term. The AutoStart function detects a high-level input signal and initiates operation automatically.
These amplifiers are engineered with low EMI emissions, so they do not interfere with the vehicle's electronics or FM signal reception.
Explore the full range in Phoenix Gold Amplifiers.
Specification
| Frequency Response | 12Hz 22kHz |
|---|---|
| RMS Power Rating (1Ω) | N/A |
| RMS Power Rating (2Ω) | 4 x 175W |
| RMS Power Rating (4Ω) | 4 x 105W 2 x 350W Bridged |
| Total Harmonic Distortion (THD) | <1% |
| Low Pass Filter (LPF) | 40Hz – 6kHz (12dB/Oct) |
| High Pass Filter (HPF) | 40Hz – 6kHz (12dB/Oct) |
| Subsonic | N/A |
| Bass Boost @ 45Hz | 0 +18dB |
| Crosstalk | -60dB |
| Input Sensitivity | 0.25V 9.8V |
| Fuses | 2 x 20A |
| Remote | Yes (Included) |
| High-level Input Via RCA | Yes |
| Auto Turn-on | Yes |
| Phase Control | N/A |
| Operating Voltage | 9-16Volt |
| Idle Current | 0.55A |
| Current Draw | (Max) 34A |
| Total Efficiency | (4Ω) 88% |
| Power Terminal | 20mm |
| Speaker Terminal | 4mm |
| Dimensions | (LxWxH) 254 x 160 x 48.3mm |
| Weight | 1.76 kg |
More specs
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What's Included
- Phoenix Gold ZR6004R
Phoenix Gold
About the Phoenix Gold ZR6004R
From our tech experts at CEN
The Phoenix Gold ZR6004R is a ZR Series Class D 4-channel amplifier rated at 4 x 105W RMS at 4 ohms, 4 x 175W at 2 ohms, or 2 x 350W bridged at 4 ohms. It measures 254 x 160 x 48.3mm and includes a bass remote. 12dB high-pass and low-pass filters cover 40Hz to 6kHz, with up to +18dB bass boost at 45Hz.
Who it suits
The ZR6004R suits drivers powering a full set of speakers or combining front speakers with a small subwoofer in a space-restricted vehicle. Its bridging capability gives wiring flexibility for different configurations. For more output per channel, consider the Phoenix Gold ZQ9004 at 4 x 150W RMS.
Our tech experts advise
Confirm speaker impedance before wiring: this amp runs at 2 or 4 ohms per channel, or bridged at 4 ohms. AutoStart detects a high-level input, so an aftermarket head unit is not required. Operating voltage is 9–16V for standard 12V systems. Installation cost varies by vehicle; see our car audio installation page for details.
Explore the full Phoenix Gold range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Phoenix Gold
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Bring it to our Beeston workshop and we do the rest.
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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 Phoenix Gold ZR6004R produce?
A: The ZR6004R delivers 4 x 105W RMS at 4 ohms, 4 x 175W RMS at 2 ohms, or 2 x 350W RMS bridged at 4 ohms.
Q: Does the ZR6004R come with a remote?
A: Yes. A bass remote is included for adjusting level from the driving position.
Q: Will the ZR6004R work with a factory head unit?
A: Yes. It has high and low level inputs with auto turn-on on the high level input, and a balanced differential input design.
Q: Can the ZR6004R run midrange and tweeters actively?
A: Yes. The high pass and low pass filters are adjustable from 40Hz to 6kHz at 12dB per octave, so the channels can be set up as an active filter for midrange and tweeter speakers.
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