Phoenix Gold ZX18PDF 8 Inch Sub Enclosure Slim Passive Subwoofer Box 250w RMS
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The Phoenix Gold ZX18PDF is a slim sealed 8 inch passive subwoofer enclosure rated at 250W RMS (500W max) at 2 ohms, part of Phoenix Gold's ZX Series. It supports 360-degree placement — side, front, back or face down — making it well suited to tight or awkward installs.
Key specifications
- Subwoofer size: 8 inch (200mm)
- Power handling: 250W RMS / 500W max
- Impedance: 2 ohm
- Enclosure: sealed, 4.75L net volume
- Excursion: 24mm peak-to-peak
- Voice coil: 1.5″ high-temperature copper
- Dimensions (LxWxH): 350 x 250 x 135mm
- Placement: 360-degree (side, front, back or face down)
ZX18PDF 8″ Slim Subwoofer Box
The ZX18PDF is a compact sealed enclosure housing an 8″ (200mm) subwoofer at 2 ohms. It handles 250W RMS and peaks at 500W, and its slim profile means it fits where larger boxes won't. The 360-degree positioning means you're not restricted to a single orientation during installation. If you need an active option in the same form factor, the Phoenix Gold Z8AB 8 Inch Active Sub Enclosure includes a built-in amplifier.
Key Features
- 8″ subwoofer: robust bass in a compact form factor.
- 250W RMS / 500W max power handling for dynamic sound reproduction.
- 2-ohm impedance: compatible with a wide range of amplifiers.
- 24mm peak-to-peak excursion for deeper bass response.
- 1.5″ high-temperature copper voice coil for durability under high power.
- Easy-connect speaker terminals for quick, secure installation.
- Black steel material former for structural integrity and heat dissipation.
- High roll rubber stitched surround for improved cone control and longevity.
- 360-degree placement: install on the side, front, back or face down to suit your fitment.
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Specification
| Type | Sealed Enclosure |
|---|---|
| Speaker Size | 8″ (200mm) |
| Impedance | 2 Ω |
| Power Handling | (RMS) 250W |
| Power Handling | (MAX) 500W |
| Volume (Net) | 4.75 L |
| Dimensions | (L x W x H) 350 x 250 x 135mm |
What's Included
-
ZX18PDF 8″ Slim Subwoofer Box
Phoenix Gold
About the Phoenix Gold ZX18PDF
From our tech experts at CEN
A Phoenix Gold 8 inch subwoofer in a matched enclosure, slim enough for tight boot and underseat spaces.
Who it suits
Drivers who want a known result without commissioning a custom build.
Our tech experts advise
Match the amplifier to the enclosure’s rating, and secure the box properly: an unrestrained enclosure is dangerous in a crash. 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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Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: What impedance is the Phoenix Gold ZX18PDF?
A: The ZX18PDF is a 2 ohm subwoofer box, so choose an amplifier that is stable at 2 ohms and delivers around its 250W RMS rating.
Q: Can the ZX18PDF be mounted in any position?
A: Yes. It is designed for 360-degree placement, so it can be installed on its side, front, back or face down to suit your vehicle.
Q: How big is the ZX18PDF?
A: It measures 350 x 250 x 135mm (L x W x H) with a net internal volume of 4.75 litres.
Q: Can CEN fit this subwoofer box for me?
A: Yes. CEN offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to book an installation slot or ask for a fitting quote.
