Phoenix Gold ZDA4.8 Amp 4 Channel DSP Digital Sound Processor Amplifier 4x70w
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The Phoenix Gold ZDA4.8 is a 4-channel Class A/B amplifier with a built-in 8-channel DSP, delivering 4 x 70W RMS. Its 20-pin Molex connector works with ZDC-ISO and ZDT- plug-and-play harnesses, making it suited to factory system upgrades without cutting wires. It is part of the Phoenix Gold ZDA (ZD) series.
Other models in the range: ZDA6.8 6-channel DSP amplifier and ZDA8.8 8-channel DSP amplifier.
Key specifications
- Power output: 4 x 70W RMS
- Amplifier class: A/B
- DSP: 8-channel, 31-band parametric EQ
- DSP sampling rate: 48kHz
- DAC: PCM1681
- Bluetooth: 5.0
- Tuning: free PC software (Windows 10 and 11) via USB-B
- Connector: 20-pin Molex (ZDC-ISO and ZDT- harnesses)
ZDA4.8 4-Channel DSP Amplifier
The ZDA4.8 is a 4 x 70W RMS Class A/B amplifier with an integrated 8-channel DSP. The Class A/B design produces a warm, natural sound with no cooling fan required.
Made for Plug and Play
The ZDA4.8 features a 20-pin Molex connector compatible with ZDC-ISO and ZDT- harnesses, allowing a clean installation without modifying your vehicle's original wiring.
Key Features
- Burr Brown OPs – the same technology used in the Phoenix Gold ZQ series for precise audio performance.
- Burr DAC PCM1681 – premium digital-to-analogue conversion.
- Bluetooth 5.0 – wireless connectivity for stable signal transmission.
- Toshiba TDA Transistor Package – efficient power delivery.
- Die-cast heatsink – effective thermal management without a fan.
- 48kHz DSP sampling rate – high-resolution audio processing.
- Gold PCB design – durable, quality construction.
- Molex connectors – secure, reliable connections.
- 8-channel DSP – full customisation across all models in the ZDA range.
- Class A/B design – natural sound without fan noise.
The ZDA4.8 is designed to replace or improve upon standard factory amplifiers. Even without DSP adjustment, audio quality is notably improved over a typical OEM setup. The built-in DSP allows further fine-tuning to suit your preferences and vehicle acoustics.
Software
Free PC software (Windows 10 and 11) is included, connecting via USB-B. It provides the following tuning tools:
- 31-band parametric EQ (PEQ) for precise frequency adjustment
- Filter types: Bessel, Butterworth, Linkwitz-Riley, with adjustable slopes from -6dB to -48dB
- Time alignment with a built-in delay calculator
- Fully custom channel routing
- Custom link options (Copy or Relate)
The ZDA4.8 is engineered with low EMI emissions to avoid interference with vehicle electronics or FM signals.
Explore the full range in Phoenix Gold Amplifiers.
Specification
| Bluetooth | 5.0 – Seamless wireless connectivity with cutting-edge stability and performance. |
|---|---|
More specs
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What's Included
- Phoenix Gold ZDA4.8
Phoenix Gold
About the Phoenix Gold ZDA4.8
From our tech experts at CEN
A 4-channel amplifier from Phoenix Gold, with a digital sound processor built in.
Who it suits
Drivers whose speakers have outgrown the head unit. The on-board processing also makes it a tidy answer in cars keeping their factory head unit, since it can correct that signal.
Our tech experts advise
Processing is worth only what the tuning puts into it: measurements in the car rather than a preset. 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 Phoenix Gold range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Phoenix Gold
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
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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 ZDA4.8 deliver?
A: The ZDA4.8 delivers 4 x 70W RMS from a Class A/B output stage.
Q: Does the ZDA4.8 have Bluetooth?
A: Yes. It has Bluetooth 5.0 for wireless connectivity, alongside its built-in 8-channel DSP.
Q: How is the ZDA4.8 tuned?
A: It is tuned with free PC software for Windows 10 and 11 over the included USB-B cable, with a 31-band parametric EQ, selectable filter types and slopes from -6dB to -48dB, time alignment and custom channel routing.
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