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Rockville USS8 8" 600w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub
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DESCRIPTION OF USS8
The USS8 is an all in one solution to give you great sounding bass in your vehicle without taking up a ton of space. This sub enclosure is only 2.9" thick so that it can easily fit under your seat. The amplifier is built in, so installation and wiring is easy and clean. This is a true all in one subwoofer system with the sub in the enclosure, and a top of the line amp built in.
We wanted to truly make installation a breeze so we designed this unit with the user in mind from start to finish. 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.
Another thing we did to make installation a breeze 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 USS8 has 600 watts of peak power and 150 watts RMS. This model is CEA-2006 compliant which means the ratings are approved by a 3rd party so you can be 100% sure that this item will produce the power it says it will. This is one of the only slim under seat subs on the market that is CEA compliant. Do not get fooled by other brands who write bogus power ratings that do not comply with any industry standard. Even if another unit says 2000 watts on it, ours is better and louder
This has amazing controls so you can tweak the sound to your liking. It has a level control for the volume and subsonic filter to filter out the really low frequencies that the human ear can not 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.
Rockville owns the exclusive mold we designed for this enclosure. Our designer made a modern design that we think everyone will love. Some of the other ones on the market just weren’t pleasing to the eye. We paid extra money and made the mounting feet extra strong and thick. Other models on the market by cheaper brands have flimsy feet that tend to break easily.
The best thing about our model is the sound. It is slim but it sounds like a full sized sub. Our engineers spent the last 2 years developing this model. We put a lot of hours into this!
Features:
- Rockville USS8 8" 600w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub
- 600 Watts Peak / 150 Watts RMS
- Heavy Duty Mounting Feet
- PWM MOSFET Power Supply
- Low Level RCA Input
- High Level Inputs with Auto Turn-On Technology
- Adjustable Input Sensitivity
- Soft Delayed Remote Turn-On
- Thermal Protection Circuit, Short Protection Circuit
- Green Power/Red Protect LED
- Phase Switch: 0° or 180°
- Low Pass Filter: 50Hz - 150Hz
- Bass Boost: 0 - 12dB @ 45Hz
- Subsonic Filter: 20Hz – 50Hz
- THD < 0.15%
- Subwoofer Level Remote Control
- Fuse Rating: Single 20A
Specifications:
- Maximum Power RMS: 150 Watts
- Impedance: 3 Ohm
- Dimensions: 13.6 x 9.9 x 2.9 (L x W X H) Inches
- Frequency Response: 15Hz - 125Hz
- Signal to Noise Ratio >82dB
- Sensitivity: 90dB @ 1w / 1m
- Input sensitivity, RCA level 195mV
- Input sensitivity, HIGH level 5.6V
Cellohead
Reviewed in the United States on March 28, 2025
Was heavily packed and had reasonably easy to follow instructions. The wire connections need an odd size small torx bit with all the connections being made on what will be the rear of the unit for me, meaning all wire must be a foot longer to allow rotating the unit once it is wired. If you are adding this you need to pull out a lot of stuff as opposed to installing with every connection accessible. I like the variable freq. adjustment and the phase control.When I get it fired up I will return with another review noting how it compliments the $1600. of other components.
Philip Larsen
Reviewed in Australia on October 29, 2024
If i was to look for a compact active sub i would definatley try an alternative.
Antonio Gutierrez Avella
Reviewed in Mexico on September 3, 2023
Realmente funciona y suena muy bien! Mientras funcione!. Duró exactamente un mes y diez días, después empezó a apagarse y encenderse, luego ya no funcionó. La ventana de devolución se había cerrado por Amazon, me puse en contacto con ellos y fueron muy muy diligente y amables, me pidieron que primero me pusiera en contacto con Rockville cosa que hice y ellos me respondieron que harían válida la garantía con costos de envío y regreso desde México a USA a mi cargo; cosa inaceptable para mi. Regresé con Amazon y sin chistar se hicieron cargo deenviarme etiquetas de devolución y posteriormente realizaron el depósito correspondiente. En concreto, fue bueno mientras duró.
Greg H
Reviewed in the United States on August 18, 2023
I bought this specific subwoofer because it would fit underneath a seat in my Bayliner 175 boat. No, this sub will not make your nose itch but it adds some good bass to my boat which I didn't have before and happy with my purchase so far. It wasn't a terribly difficult install but with this being a boat, there were not a lot of cable routing options and that was the biggest challenge. I had purchased the Rockville RWK10 10 Gauge Amp Installation Kit separately but ended up having to run around town anyway because most of the wires in that kit were not long enough for my application (for a boat). I like the fact that the sub turns on and off with my head unit power. I'm glad I could find an under seat solution and just as happy with the added bass with a little thump.
Rene Chavarria
Reviewed in Mexico on July 20, 2023
Lo acaban de instalar y una calidad de sonido👌🎊
Angelique Archuleta
Reviewed in the United States on March 12, 2023
Installed in a 2005 Chevy Colorado with a Sony xav-602BT face unit. The install was very simple (I watched a few online videos because I’ve never done it before) and it took about 1.5 hours. The sound was super crisp and clear with some pretty serious “thump”. It fit under the back seat just fine with another 2” or so to spare. Seriously, I am so impressed with the sound and for the price… 5 stars for me, I would buy again for sure. Rockville puts out a great value product.
TyGr
Reviewed in Canada on February 9, 2023
At first glance it’s seems like really good quality for its price. It fits nicely under truck back seat. It’s perfect for me not into big sound but more then door speakers can provide. Added just what I needed for my my truck stereo.
Customer
Reviewed in the United States on April 16, 2023
Got a good amount of bump for a single 8 inch. It's not going to pull 170 dB but it's got a good overall quality.So by the time you got a amp kit( 8 awg is the recommended one and as big as your going to get in ) you got say $150 in it.So if you bought a cheap amp +subwoofer +box , you'll have more in everything than what you've got in this rockville.It's got excellent build quality and easy to adjust Phillips turn screws.Very happy for the ten min I played with it before permanently installing it.
S Strahan
Reviewed in the United States on June 19, 2022
The sub came well packaged and has a clean look. I installed it in my CJ and was impressed with the sound initially. A couple days later, the sub quit putting out any sound. The power light was on, amp was not in protect, and there was no output through the sub. I rechecked all my connections and wiring and still nothing. I removed the sub and put in an old amp and speaker setup in it’s place. Everything worked fine so I’ll just stick with what works. Returned sub and my refund is pending.
Jo
Reviewed in Canada on October 17, 2022
It installed easy and work as intended , compliments mid and high range speaker set up nicely to have a balanced sound with the ability to be heavy on bass if that's what you like
Cory Chesnut
Reviewed in the United States on April 17, 2022
Fits well under the passengers seat in a 2013 Toyota Corolla. I wanted to fit it under the driver's side but the yaw sensor was in the way and I didn't want to remount it. It's a good balance between nice bass and I can still tune it down for when the child is in the car. I haven't noticed any clipping or dropout. Installed super easy off a Kenwood deck. I'm not an audiophile but I am a musician and the clarity is quite good above 70-80 hz. The lower ends get a little muddy but the lpf works a treat if you'd rather clear sound than rumbles.
Stuart Allen
Reviewed in the United States on February 10, 2020
I am leasing a truck, a 2018 Ram 1500, with the stock 6 speaker stereo system. I was looking to add some lower end bass notes to my ride but since I'm leasing I didn't want to radically alter the vehicle or spend big bucks on it. The Rockville powered sub was just the ticket.I had Best Buy Geek squad install it behind my back seat. Now I can hear the entire sound spectrum of each song. I'm hearing bass notes in favorite songs I've never heard before. This powered sub will not give you teeth rattling BOOM BOOM bass, but it will vibrate the seats and mirrors with bass notes. In other words, it adds a nice bass dimension to your music.
Jeff R
Reviewed in the United States on September 2, 2018
*3 MONTH UPDATE*The sub was great at first, but has begun cutting out randomly. It's not going into protect mode, so I'm assuming maybe a voice coil wire is coming loose or something. It coincided with running the gain up pretty high, but I would think a powered sub should survive anywhere in its amp's operating range. Reduced to 3 stars. You might have better luck at a lower gain setting and light use.I bought this sub with the intention of filling in the low end of my audio system in my 99 Suburban. I was really just looking for something that would allow me to tune the bass out of my door speakers in order for them to sound less muddy. I'm not an audiophile, but I do enjoy my music. This sub served my purpose well. So far it sounds great. It's not a heavy hitter, but if you're just looking to bring a little low end to a factory sound system that's lacking, this is a good bet. It has high level and low level inputs which seems pretty common on these powered woofers. I'm using low level from my Pioneer double din. Time will tell, but for it's size and slim profile it does great. Mounted it under my second row seats. The remote gain control is another nice feature.
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