







DS18 ZXI8 8" High Excursion Subwoofer, Quad Stacked Magnets (DVC 4-Ohm / 2-Ohm) — 600W RMS / 1200W MAX
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DS18 ZXI8 8" High Excursion Subwoofer, Quad Stacked Magnets (DVC 4-Ohm / 2-Ohm) — 600W RMS / 1200W MAX
Product Overview
Description
Key Features
- 8" high excursion subwoofer with quad stacked ferrite magnets — 104 oz (4 × 26 oz)
- 600W RMS / 1200W MAX power handling
- Available in DVC 4-ohm (ZXI8.4D) or DVC 2-ohm (ZXI8.2D)
- 2" CCAW voice coil on a black aluminum former
- Xmax 18.5mm one way — large foam surround for high excursion with cone control near max power
- Low Fs — works in large boxes with lower-than-normal tuning; suits both sealed and ported enclosures
- Non-pressed paper cone, PPI dust cap, black sandblasted aluminum basket with show-quality DS18 logos
- Frequency response 25–880 Hz · Sensitivity 86 dB
Overview
Do you want more excursion, more thumping power, and to shake everyone's mirrors around you? DS18 has the perfect subwoofer to satisfy all your bass head needs in the newly designed ZXI8 high excursion subwoofer. This monster sub packs a 2-inch coil made to withstand high amounts of power with the utmost efficiency while producing thunderous, distortion-free bass.
This sub has a low Fs so it can be used in large boxes with lower than normal tuning. Not only will this subwoofer slay the lows, it is versatile enough to also play higher frequencies in the bass zone of sub frequencies.
The ZXI subline is a great high excursion line of subwoofers that both handle great power and give you smooth clean bass while playing ultra low frequencies. These subs work great in both sealed and ported boxes, giving you many options for placement in any vehicle.
The large foam surround and non-pressed paper cone work together to deliver smooth, crisp bass that can be heard strongly throughout the vehicle.
Great for: Car Audio · Motorcycles · Home Studios · Hi-Fi Installation · DIY Projects
Specifications
| SKU — DVC 4-Ohm | ZXI8.4D (nominal impedance 4 + 4 ohms) |
| SKU — DVC 2-Ohm | ZXI8.2D (nominal impedance 2 + 2 ohms) |
| Nominal Diameter | 8" / 203.2mm |
| RMS Power Handling | 600 Watts |
| MAX Power Handling | 1200 Watts |
| Sensitivity (1w/1m) | 86 dB |
| Frequency Response | 25–880 Hz |
| Recommended Lo-Pass Crossover | 90 Hz |
| Xmax | 18.5mm one way |
| Voice Coil Diameter | 2" / 50.8mm |
| Voice Coil Former | Black aluminum |
| Winding Material | CCAW |
| Cone Material | Non-pressed paper |
| Dust Cap | PPI |
| Surround | Foam |
| Basket | Aluminum, black sandblasted finish |
| Magnet | Ferrite, 104 oz (4 × 26 oz quad stack) |
| Displacement Volume | 1.02L / 0.036 ft³ |
| Overall Diameter | 8.58" / 218mm |
| Overall Depth | 6.83" / 173.5mm |
| Front Mount Baffle Cutout | 7.31" / 185.8mm |
| Mounting Depth | 5.51" / 140mm |
| Motor Diameter | 5.27" / 134mm |
Price is each. All specifications above are shared by both impedance configurations except nominal impedance, per DS18's published spec tables.
Free shipping on orders $100+
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
RMS vs. MAX power — which number do I actually care about?
RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.
What does the IP65 rating on DS18 marine gear actually mean?
It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.
How do I match an amplifier to my speakers without guessing?
Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.
Can I mix marine-grade gear into a standard car audio setup, or the reverse?
You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.
What gauge wiring kit do I need?
It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.

