Ground Shaker GS-F25018B Single 8" Sealed Sub Box — Fits 99–07 Ford F-250 Crew Cab
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Ground Shaker GS-F25018B Single 8" Sealed Sub Box — Fits 99–07 Ford F-250 Crew Cab
Product Overview
Description
Key Features
- Vehicle-specific single 8" sealed subwoofer enclosure — fits 99–07 Ford F-250 Crew Cab
- 0.51 ft³ sealed air volume
- Mounts behind the rear seat, forward-firing
- Built from ⅝" high-quality MDF, carpeted in a durable trunk-liner finish
- Sealed with high-quality Titebond silicone and glued with Titebond wood glue
- 1 binding post terminal
- Install note: removal of plastic tray and rear wall carpet required
Specifications
| SKU | GS-F25018B |
| Application | 99–07 Ford F-250 Crew Cab |
| Woofer Size | Single 8" |
| Cutout Diameter | 7⅛" |
| Air Volume | 0.51 ft³ |
| Mounting Depth | 5" |
| Enclosure Type | Sealed |
| Firing Direction | Forward |
| Height | 15¼" |
| Length | 21¼" |
| Top Depth | 4" |
| Bottom Depth | 6" |
| Construction | ⅝" high-quality MDF, carpeted trunk-liner finish |
| Terminals | 1 binding post terminal |
| Weight | 17 lbs |
| Color | Black |
Subwoofer not included. Price is each.
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.