Rockville SS8P 8" Powered Under-Seat Car Subwoofer with RWK10 Amp Kit
- 8 inch powered subwoofer, under-seat mount
- 400 watts maximum output
- 20 hertz frequency response, 2 ohm impedance
- 12 volt input, 90 db signal to noise ratio
- 11 x 14.1 x 5.4 inch enclosure, 11 pounds
- RWK10 10 gauge amp kit with ANL fuse holder and RCA
- 1 year manufacturer warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A slim powered sub with its amplifier built in and a wiring kit included, aimed at cars and trucks with little room. It is mono and not waterproof.
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ASIN: B079PSSD6NModel: SS8P+RWK10Category: Enclosed Subwoofer Systems
Overview
A driver who wants more low end without a bulky box gets a slim under-seat enclosure with its own amplifier built in. The package adds an amp installation kit with a fuse holder and copper RCA cable.
Power, enclosure and wiring come in one purchase, which removes the guesswork over amp size and cable gauge. The limitation is a single smaller driver with mono output, and the listing shows it is not waterproof.
Who it's for
Car and truck owners who have little room and want a self-contained bass upgrade suit this. Those wanting a large, loud enclosure or wet use should look elsewhere, as the listing marks it as not waterproof.
Pros and cons
- Built-in amplifier, no separate amp needed
- Slim under-seat enclosure
- Amp wiring kit included
- Remote control for adjustment
- Mono output only
- Single smaller driver
- Some listing specs read as unrelated
Performance notes
Output depends on the vehicle supply and the wire gauge feeding the built-in amplifier, so the included gauge kit and fuse holder matter. The slim shape limits cone area and enclosure volume, which sets how low and loud the bass plays. Remote control lets the level be adjusted from the driver position.
Specifications
| Brand | Rockville |
|---|---|
| Model | SS8P+RWK10 |
| Dimensions & fit | |
| Driver size | 8 inches |
| Dimensions (D x W x H) | 11 x 14.1 x 5.4 inches (D x W x H) |
| Item weight | 11 pounds |
| Capacity & performance | |
| Maximum power | 400 watts |
| Output mode | Mono |
| Signal to noise ratio | 90 db |
| Power & efficiency | |
| Input voltage | 12 volts |
| Construction & materials | |
| Enclosure | Aluminum |
| Compatibility & installation | |
| Vehicle type | Car, Truck |
| Mounting | Under-Seat |
| Connectivity | RCA |
| Warranty & support | |
| Warranty | 1 Year Manufacturer |
| Other details | |
| Impedance | 2 ohm |
| Frequency response | 20 hertz |
| Waterproof | No |
| Control | Remote |
| Included | Subwoofer and RWK10 10 gauge amp installation kit with ANL fuse holder and RCA |
Frequently asked questions
What do I need to install the Rockville SS8P under a seat?
The package includes the RWK10 10 gauge amp installation kit with an ANL fuse holder and RCA cable. The listing gives no mounting hardware or seat clearance, so measure the space under your seat against the enclosure dimensions.
Does the Rockville SS8P need a separate amplifier?
No. The description calls it a 400 watt slim under-seat active powered subwoofer, so the amplifier is built in.
Is the Rockville SS8P waterproof?
No. The listing marks it as not waterproof.
Can the Rockville SS8P go in a truck?
The compatible vehicle types are listed as car and truck.