Ground Shaker GS-30HZ18B Single 8" 30Hz Competition Ported Sub Box — Universal
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Ground Shaker GS-30HZ18B Single 8" 30Hz Competition Ported Sub Box — Universal
Product Overview
Description
Key Features
- Universal single 8" ported competition enclosure tuned to 30 Hz
- 0.98 FT^3 net air volume
- Slot port: H-9" W-1" L-25"
- 7 1/8" cutout, 12 1/2" mounting depth
- 3/4" MDF construction, carpeted in trunk-liner finish
- Sealed with Titebond silicone and glued with Titebond wood glue
- 1 spring loaded terminal
Specifications
| SKU | GS-30HZ18B |
| Application | Universal (check dimensions for fitment) |
| Woofer Size | 8" × one |
| Enclosure Type | Ported, slot port |
| Tuning Frequency | 30 Hz |
| Cutout Diameter | 7 1/8" |
| Air Volume | 0.98 FT^3 |
| Mounting Depth | 12 1/2" |
| Weight | 33 LBS. |
| Port | 1 slot port, H-9" W-1" L-25" |
| Front Baffle | 1" |
| Height | 10 1/4" |
| Length | 20 3/4" |
| Depth | 15 3/4" |
| Construction | 3/4" MDF, carpeted trunk-liner finish, Titebond silicone seal and wood glue |
| Terminals | 1 Spring Loaded Terminal |
| Color | Black |
Subwoofer not included. Price is each.
Free shipping on orders $150+
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.