Ground Zero GZRA 65.4-MICRO 4 Channel Class D Amplifier 300w
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GZRA 65.4-MICRO
Plug and play micro 4-channel ISO-amplifier
The Ground Zero GZRA 65.4-MICRO is a 4-channel ISO micro amplifier designed for plug-and-play installations, either as a replacement for or as an addition to an OEM system. Its ultra-compact design and surface-mount components ensure discreet integration into even the most demanding vehicles, without sacrificing sound quality. Thanks to its high-level input with automatic signal detection (auto-on), it connects directly to the speaker outputs of the original head unit.
Features
- Micro 4-channel ISO-amplifier
- SMD components
- Class D technology
- Fixed high-pass filter for easy setup
- Easy integration of additional mono amplifiers
- Stable power supply
- Compact heatsink with engraved Ground Zero lettering
- High-level input with auto-on function
- Incl. ISO harness
Explore the full range in Ground Zero.
Specification
| Type | Class D amplifier |
|---|---|
| Channels | 4 |
| Output Power (@ 4Ω) | 4x 65 Watts RMS |
| Output Power (@ 2Ω) | 4x 75 Watts RMS |
| Output Power (@ 4Ω) bridged | 2x 150 Watts RMS |
| max. Output Power | 340 Watts |
| Frequency Response | 10 Hz – 22 kHz |
| HPF / LPF / BPF | Yes / Yes / Yes |
| Bass Boost / Phase switch | No / No |
| High level input / Auto-on | Yes / Yes |
| Remote Control | No |
| BIAS Setting | No |
| Linkmode | No |
| Dimensions | (w x l x h) 82 x 185 x 40 mm / 3.23″ x 7.28″ x 1.57″ |
What's Included
- GZRA 65.4-MICRO
Ground Zero
About the Ground Zero GZRA 65.4-MICRO
From our tech experts at CEN
A 4-channel amplifier from Ground Zero, Class D, rated at 300w.
Who it suits
Drivers who have upgraded their speakers and found the head unit cannot drive them properly. Ground Zero is a German brand with a strong following in competition and SPL circles, and the amplifiers reflect that.
Our tech experts advise
Matching matters more than headline watts, and gains want setting 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.
Explore the full Ground Zero range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Ground Zero
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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.
