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Rockville SS8P Bundle: 400-Watt 8 in Slim Under-Seat Active Powered Car/Truck Subwoofer, RWK10 10 Gauge Amp Installation Kit with ANL Fuse Holder and 100% Copper RCA Cable, 2-Items

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Availability: In Stock.
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Arrives Wednesday, Sep 2
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Features

  • Package Includes: (1) Rockville SS8P 400-Watt Slim Under-Seat Active Powered Car/Truck Subwoofer Sub, (1) Rockville RWK10 10 Gauge Amp Installation Kit ANL Fuse Holder 100% Copper RCA
  • Compact Power with Deep Bass: 400W peak / 100W RMS output in a slim 2.8" enclosure for powerful, clear bass that fits easily under car or truck seats.
  • Advanced Controls: Adjustable low-pass filter (50Hz150Hz), phase switch (0/180), subsonic filter (20Hz), and bass boost (012dB @45Hz) for fine-tuned sound performance.
  • High-Quality Design: Cast aluminum enclosure stays cool; 4 impedance, frequency response 20150Hz, SNR >90dB, sensitivity 90dB @1W/1m; single 15A fuse for dependable power.
  • Premium Wiring Kit: RWK10 includes 100% copper RCA cables and 10-gauge SuperFlex power wire with low resistance for efficient current flow and clean, distortion-free audio.

Description

Package Includes: ________________________________________________________________________________________________________________________________________ Description of SS8P: The SS8P is an all in one solution to give you great sounding bass in your vehicle without taking up a lot of space. This sub enclosure is only 2.8" thick so that it can easily fit under your seat. The amplifier is built in, so installation and wiring is clean and simple. This is a true all in one subwoofer solution with the subwoofer built into the enclosure along with a top of the line amplifier built in as well. We focused on making installation a breeze so we designed this unit with you the customer in mind. We added high level inputs so you can install this to an aftermarket or factory system. The high level input allows you to install this even if you have no preamp outputs available. The smart turn-on circuit will sense that an audio signal is present and turn on the amplifier. When you turn off your music signal the amplifier built into this subwoofer system will automatically turn itself off. Something else we did to make installation quick and easy is we put all the inputs and outputs on one side. This makes wiring neater and easier. Our competitor's models are more challenging to install. The SS8P has 400 watts of peak power and 100 watts RMS. This has great controls so you can adjust the sound to your liking. It has a level control for the volume and subsonic filter to filter out the really low frequencies which the human ear cannot hear. This also has a low pass crossover filter, phase control, input sensitivity, and bass boost. Included is a remote bass knob, and mounting hardware but the best thing about our model is the sound. Features: Specifications: ________________________________________________________________________________________________________________________________________ Description of RWK10: The Rockville RWK10 10 AWG (American Wire Gauge) amp kit has the following differences over other amp kits on the market. 1. Our RCA cables are 100 % copper. These are top of the line RCA cables 2. Better Resistance: The only thing that really matters with wires is the resistance rating. This is a measurement of conductivity and how much signal is loss per foot of wire. 3. We do not cheat you on the thickness of the wire. These are standard American wire gauge thickness. Other brands in the market place write 10 gauge, but cheat you on the thickness. We are honest about the thickness. 4. The Rockville amplifier installation kits feature a new soft abrasion proof insulating jacket. This rugged PVC outer jacket allows for 100% improved flexibility over standard power cables making them extremely easy to route through your vehicles interior, and it maintains exceptional resistance to grease and oil. The PVC outer jacket can with-stand an extreme temperature range of -40 to 220 degrees F. The RCA signal transfer cables included in this kit feature blue and silver twisted pair technology in a clear outer jacket insulation skin. Not only do the blue and silver wires look cool but they also provide superior signal transfer with maximum noise suppression. They are 100% copper to provide absolute lossless perfect signal transfer to your receiver. This technology reduces interference, so your audio signal flows clean and pure at all power levels. The included 7 split loom tube provides protection for your power cable from the typically harsh environment found under the hood of your car. AudioSavings product experts have tested this amp kit against many leading amp kits on the market and were were impressed not only by the great looks but by the quality of these Rockville installation kits as well. These kits had a lower resistance rating than the other brands we compared and tested them against. You will hear the difference a Rockville installation kit will make! AudioSavings product experts have tested this amp kit against the leading amp kits on the market. Here are the facts from our testing. The resistance per foot of this kit is extremely low compared to any other amp kit in its range. The other amp kits we tested it against had resistance ratings that indicated they were an 8 gauge amp kit. We were more shocked than anyone about these tests, because we used to sell some of those amp kits. (We now will not sell those any more after learning that they are not up to the quality standards of our installers). The conclusion is that Rockville does a great job manufacturing amp kits while other brands are deceiving consumers. One other last thing worth noting about our kit compared to others. Our kit cosmetically looks the best. It has blue power wire, clear ground wire, and twisted pair RCAs with matching colors. This model includes (1) set of RCA cables. Features:

Brand: Rockville


Speaker Maximum Output Power: 400 Watts


Frequency Response: 20 Hz


Connectivity Technology: RCA


Audio Output Mode: Mono


Audio Output Mode: Mono


Mounting Type: Under-Seat


Enclosure Material: Aluminum


Speaker Type: Subwoofer


Additional Features: Protection


Antenna Location: Car


Subwoofer Diameter: 8 Inches


Color: Black


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Remote


Speaker Size: 8 Inches


Woofer Diameter: 8 Inches


Specific Uses For Product: DJ


Processor Count: 1


MP3 player: No


Controller Type: Remote Control


Unit Count: 1 Count


Item Dimensions D x W x H: 11"D x 14.1"W x 5.4"H


Item Weight: 11 Pounds


Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop


Compatible with Vehicle Type: Car, Truck


Power Source: 12-volt DC electrical system


Brand: Rockville


Model Number: SS8P+RWK10


Model Name: SS8P


Built-In Media: Rockville RWK10 10 Gauge Amp Installation Kit ANL Fuse Holder 100% Copper RCA, Rockville SS8P 400 Watt Slim Under-Seat Active Powered Subwoofer Sub


Warranty Description: 1 Year Manufacturer


Number of Items: 1


Manufacturer: Rockville


Speaker Maximum Output Power: 400 Watts


Input Voltage: 12 Volts


Frequency Response: 20 Hz


Number of Audio Channels: 2.0


Impedance: 2 Ohms


Signal-to-Noise Ratio: 90 dB


Connectivity Technology: RCA


Wireless Technology: No Wireless Communication Technology


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Number Of Circuits: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Buy it!
Another cliche ‘I don’t write reviews’ post here... but I am very impressed with all aspects of this subwoofer! Most everything is already covered in other reviews but I wanted to give some thanks to Rockville for this design! In another life I loved having worked on cars, having 2x12s in the trunk, nothing was left stock. I consider myself an audio and car enthusiast, but not a pro by any means. I like car modifications to fit as close to OEM as possible. I also like to have audio equipment sound true, flat / accurate with its reproduction. This enclosure is for specifically under-seat applications. You will not be happy with it in the trunk. - Build quality is top notch - solid metal enclosure will break your toe if you’re not careful. No rattles or cheap-feeling at all. All connections and adjustments are on one side, good idea. - Small size will fit *most* under-seat locations. Note: 2015 Hyundai Sonata 2.0 drivers seat has a plastic tray that will hold it, but it is tight. Does not fit ‘on the floor’ under the seat due to a/c duct and gear motor. So the enclosure sticks forward just an inch from the front of the seat towards your legs, but does not interfere or touch. In the seats lowest position it will squish the enclosure, but send vibrations straight to your tushie for an amazing concert-like experience. -10ga Amp Kit was perfect. Quality cables and wires included. You will need a few extra zip ties of your own. I used the ‘soft auto on’ and hi-input connections so I only needed four wires: power, ground, left and right. -Subwoofer gain level remote knob is helpful to route to the dash so you don’t have to keep adjusting the gain on the subwoofer itself. -Power is more than adequate for under-seat locations. Note: Sub is far too quiet when located in the trunk, but it is not designed for that. I tried it in the trunk but needed to move it back to under the seat. -Sound quality is very impressive for a tiny 8” enclosure. You cannot even tell a sub is installed from outside the car (you won’t p*ss off your neighbors). On stock head unit (4x door speakers, 2x tweeters in the dash. Bass +3, mid +2, High +3) Subwoofer bass boost on zero, LPF at ~60hz, gain at 60% the lows are thick and rich, kick drums hit hard. Rock, metal, country - sounds great. Hip hop or techno is average, to above average, because of the ultra low kick and sub hits... there are just a few frequencies that are missing but that could be due to my car head unit eq. Overall, great product! With new JVC CS-J620 door speakers and this sub, my anemic stock car stereo has become fantastic! ... show more
Reviewed in the United States on January 12, 2020 by nextNME

  • Great little sub!
This little sub sounds absolutely fantastic for the size and low price. I couldn't be more pleased with it! I installed it in an '88 Toyota pickup Xtra Cab that had an existing low-end JVC head unit running four equally cheap speakers. The setup sounded as you'd expect... not great, even with the built-in13-band eq tweaked as good as I could get it. Bass response was lousy. One huge issue with the setup was a horrible ~150 Hz resonance in the cavities in the back of the cab where the rear 6.5" speakers were installed. I cut that frequency in the eq, which helped tremendously, but the problem remained. I thought about installing some baffles and acoustic mat in there, but figured I'd get the sub in first and see if I could fix it with proper crossover settings. One benefit of small subs is that they can reproduce higher frequencies than larger subs. So I was hopeful I could crank up the sub's LPF and let it handle that troublesome 150 Hz, and set the HPF on the rear speakers above it. I'd planned to install the sub under one of the seats, but protrusions in the floorboard on both sides prevented that. I ended up installing it on the floor behind the driver's seat, close to the back wall of the cab. Wiring was straightforward. I removed the seats to make things easier, and allow me to lift the carpet in order to run the cable for the remote to the center console. I ran the wiring and connected it to the sub outputs on the head unit. It powered right up with the head unit and started thumping with the music! After adjusting the crossovers and eq on the head unit, and tweaking the adjustments on the sub, the system sounded absolutely amazing. I ended up turning the LPF on the sub to its maximum setting, and set the HPF on the rear speakers equally high. The annoying resonance was completely eliminated! I tested the system with several different types of music, including hard rock with tight kick drums, and rap with super-low bass lines, and was just thrilled across the board with the performance of this little, unobtrusive sub. 10/10, would buy again! In fact, I'm about to take some measurements on my '86 Buick Grand National, and if it will fit under the seat, I'm gonna grab another one! ... show more
Reviewed in the United States on July 16, 2021 by Turbo_Matt

  • Jeep TJ Owner - Pleasantly Surprised Thus Far!
I've only had the Rockville SS8P installed in my Jeep TJ for a few days, but I'm very pleased thus far! As most Jeep Wrangler owners know, cabin space is at a premium, so I wanted something that would add just a little bass and low end sound to my aftermarket system w/o compromising my limited storage space. I recently purchased a Kenwood Excelon KDC-X304 head unit (which I love) to power 2-Pioneer 6.5" speakers in the roll bar, and 2-Pioneer tweeters in the front dash area. As TJ owners also know, the stock stereo system configuration offers very little low end sound and the result is a very treble-heavy, "tinny" sound field regardless of the quality of the components installed. I originally purchased a Kenwood SW11 compact powered subwoofer that was DOA, so after returning that device (no knock on Kenwood -- just a random bad unit), I decided to give the Rockville SS8P a shot after reading many positive reviews. I'm pretty particular about the sound of my music, so I was a bit skeptical of how effective the SS8P would actually perform. However, after getting a little tuning advice from a friend who is sound system savvy, I installed the SS8P using the RCA cable option (which was very simple -- hardest part IMO was simply routing and hiding the cables). My order also included the Rockville RWK10 amp install kit (also impressive in its quality -- I highly recommend) which made the install process much easier. After tuning the gain w/ a 60Hz test signal, and setting up the signal crossovers in the head unit to direct sound signals appropriately, this little beast has exceeded my expectations thus far! If your space is limited and you are looking for something to "fill in" the lows and create a balanced sound field, the Rockville SS8P might be what you're searching for, especially if your musical tastes are in genres that are not overly "bass-heavy" (ie: rock, country, etc.). In addition, the sound quality is crisp and clear (thus far) with minimal distortion unless the unit is pushed to max volume and/or bass levels. As most reviewers have expressed, the Rockville SS8P is certainly not going to rattle the neighbor's windows, but it does produce a consistent "rumble" that I can feel in my driver seat despite the woofer being installed under the rear passenger bench seat. Even my 14-year-old daughter (who listens to a lot of rap & hip-hop) was impressed with what she 'felt' and heard while listening to her music in the passenger seat! The unit is housed in a sturdy aluminum enclosure (as a point of reference, the slightly more expensive Kenwood SW11 mentioned earlier was enclosed in plastic) and the overall build quality seems impressive. I'm hoping that's an indication of the unit's overall durability and reliability in the long term. As the old saying goes, "Time will tell," but in the interim, "So far, so good!" ... show more
Reviewed in the United States on May 22, 2020 by David R.

  • Performs pretty good for the price-2015 smart car fortwo
I ordered the 8" ss8p with the wiring kit since it would come all at once. However I only received the speaker. A few days later, I got the wiring kit separate. Installed the speaker the day I got it after a quick run to get a wiring kit. Kinda sucked but nothing too crazy. Upon first inspection, the speaker felt robust in build quality and dense. Really felt like a quality product. I installed this onto my 2015 smart car fortwo with the base two speaker system. The two speakers had sounded horrible and broke so I put in some aftermarket pioneer 6.5" full range speakers and they sounded much more full and clear. However, the bass was lacking incredibly. In addition, the smart car has tons of engine bass and vibrations that any bass I could hear while stationary with the door speakers got drowned out with road noise and such. So I decided to get this small compact sub to slide behind the drivers seat. It fit perfectly. After installing and some tuning, this thing sounds amazing for the small size. Sure it won't blow you away of shake mirrors too much, but it is exponentially better than what door speakers and produce. I must say however, that it isn't all perfect. Some things I noticed was that the bass knob that comes with it is basically useless at high volume. And that brings me to my other point, this sub no longer increases in power after a certain volume. Assuming I've got the gain up high and the bass knob at like halfway, once I turn up my headunit over 22 volume, the door speakers begin to get louder than the bass. My door speakers begin to distort at around 26 volume so basically there's a sweet spot for this sub. Also, keep this thing well ventilated. I've got a small car with the engine right behind me and a relatively weak ac system. Pair that with 100 degree days and some music and this thing WILL get hot. I've got it behind my seat in an area where ventilation is pretty bad so I understand, but its gone into protection mode two or three times already. Though it's only done that when I've idled for like 20 mins listening to music. If this is under a seat beside an air vent you'll have no shutting-off issues like I did. I guess it's a pretty great package for like 110 dollars. If your car has no low end, this will most definitely be an improvement. Think of this as a slightly better premium factory bose system level of bass in a car. It's there for sure, but its not two 12". Perfect for me though. ... show more
Reviewed in the United States on July 8, 2021 by Juan l.

  • I will buy this again!
Wow wow wow!!! This speaker is great for what I need. Its very clean and hits perfectly! Its not obnoxious and does not rattle everything in the car. Just make sure you tune it to your liking!!! Great Woofer for the price!!! Fits perfectly under the passenger seat. Install was supper easy also. Just make sure to follow all instructions and do not rush the install. ... show more
Reviewed in the United States on November 16, 2025 by ReyRae

  • Great addition to round out the low end!
This sub produces clean bass that pairs very nicely with my JBL components running off a high-powered Sony receiver. I put this in my 2007 Prius in 2018. My daughter now drives the car and the whole system is still running as strong as ever. I can't tell you how impressed I am with this sub with the sound quality and the life span of it. I am planning to use this (or the SS10P version) in the next car I am about to get. I am a little bit of an audio snob in general. I can get really picky over audio at times. I also used to have a decked-out car audio system with everything amp'd and the big sub in the trunk in my younger years, so I have some experience in this area as well. I have found I can't handle a lot of bass rattling my body anymore. It makes me sick. :/ I still want that low-end punch, but without too much shaking of the body. This little guy fits that bill on a smaller car like a Prius perfectly. It will rattle my rearview mirror but doesn't make me sick. I tested this against the older model Rockville RW10CA 10" under-seat sub wondering if I wanted more bass. The 10" option was too much bass for what I was looking for, but more importantly to me, it was too muddy sounding. It gave a lot more rumble but wasn't clean and tight. I wouldn't have minded the extra headroom on the days I wanted to push the bass a little more, but I stuck with the 8" because it just sounded cleaner (they didn't have a 10" version of this SS series then). I am very interested in the 10" version hoping it is just as clean with that headroom I sometimes want. Be warned, if you turn it up too loud it will distort. My daughter likes to turn on bass boost sometimes and I instantly know it is on when I get in. I turn it back off. It can rumble more, but it just sounds like a mess at that point (like any speaker that distorts). If you want some nice, clean low-end that will rumble the car decently without drowning out the highs, get this. If you want more chesty feeling bass, I think the 10" version will be more to your liking. It's double the RMS power as well. I just hope it's as clean! ... show more
Reviewed in the United States on March 19, 2023 by DeviceWorks

  • Great Boost to Sound Quality
This is an excellent subwoofer for anyone looking to add bass to their system inexpensively. The fit and finish of the device is excellent. It's aluminum with a hammered finish and a good looking design that's not too flashy or in-your-face; I'm kinda disappointed I have to hide it under the seat. Wiring it up wasn't bad, but could be better. I used the RCA cables to connect it to the Sub output on my head unit, and the power connectors come from an 8-pin connector (which is also where you'll find the high-level inputs). You're supposed to somehow connect the thich 8-gauge wire to two smaller wires on the 8-pin, which isn't super easy, especially if you don't have a powerful soldering iron. However, the included cables are awesome. They have a nice thick PVC insulation yet they're super flexible, even the thick 8-gauge power wires (I think its 8 ga, not 100% sure tho). To attach it to the car, I just drilled holes through the floor and screwed it in place. The included screws were a bit short, so I had to use longer ones I had lying around. If you drill through metal, make sure to paint it or something (especially if its exposed to the elements) otherwise it'll rust. Once its wired up, it sounds awesome. bass is crisp but quite strong. I like the bass to be a bit heavy and this speaker totally delivers. If you're looking for something that rattles your license plate and can be heard from outside your car, this isn't it, but if you want to add a pretty good amount of bass, I highly recommend it. It also comes with a little bass level remote control, which I highly suggest you install. some songs sound better without so much bass IMO, so it works great to easily adjust the amount of bass according to the song. It does have one of thouse ultra bright annoying blue LEDs tho, so keep than in mind when mounting it. However, the sub works perfectly fine without the remote. The only real downside is that both the connectors and the adjustment knobs are on the same side, so you can either mount them all in a visible location, making it easy to adjust the sub, but also making it a bit uglier since the wires will also be visible, or you can hide the connectors for a cleaner look, but adjusting anything will be a pain (I have to go from the front of the seat with a tiny screwdriver and adjust everything by feel). ... show more
Reviewed in the United States on August 20, 2019 by Manuel

  • Rattles alot even at medium volume levels
Pretty disappointed. Installed on my polaris rzr. Just installed the unit up on the roof, wired it all up, and it sounds like crap. Seeing so many other good reviews I'm guessing I got a bad one? But it rattles like crazy if you turn the bass up enough to actually hear it over the rest of the factory sound system. If its set super low (bass down to almost its lowest setting) it doesn't rattle. ... show more
Reviewed in the United States on July 1, 2026 by Ben randall

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