Best Soundstream USB-8A 8" Powered Subwoofer Slim Enclosure Deals

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List Price: $299.95
Sale Price: $136.99
Today's Bonus: 54% Off

This is a 12-volt powered 8-inch sub woofer. The build quality is high and it is HEAVY probably due to a giant magnet inside.

The performance is okay about what I expected from an 8-inch speaker in a 3-inch high enclosure.

It's built for "under-seat" vehicle installations where there isn't room for a large speaker box enclosure. In my case, this is installed in a small RV without much room.

The sub woofer is designed and intended to work in a closet space.

And once the speaker is bolted or screwed to a firm hard surface, it really can be made to boom.

The optional remote is a corded potentiometer which can be mounted with screws if desired.

There are adjustments for gain, bass boost, low pass filter and a cross-over switch on the main unit.

Given that the speaker is only 8-inches diameter and the enclosure only 3-inches tall, I have to give it a five star rating based on it's price, performance, size and quality build.

This is not the sub woofer for you if you're looking for the big boom, room vibrating sound.

But if your listening space lacks low frequency response and you don't have the room for a proper sized speaker enclosure, then you would find this a suitable sub woofer.

The only downside is that the installation booklet is barely adequate. Made in China and it shows.

None-the-less, its pretty basic power wire positive, negative and an on/off trigger wire from the stereo unit plus the two RCA jacks (not included) connected to the stereo. Unless you're completely in the dark about this stuff, it is pretty simple. Additional install manual help can be found online with a Google search.

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I purchased this active sub to go under the seat in my Mercedes wagon it's a 30 year old classic with tiny 4 inch speakers from the factory, and as you might guess, they were sorely lacking in the bass department. I wanted to keep the car looking original, but also wanted great sound, so this was my solution to keeping the 4 inch speaker size for the factory front and rear speaker locations and still getting some great sound.

Overall, this speaker set up is absolutely wonderful. Bass is more than adequate for my grown up tastes and it adds signigicant depth to my listening experience, whether classical, rock, or jazz. I had hoped that the sub, coupled with a head unit that enabled me to set up high/low pass filters to keep the right frequencies to the right speakers would give me great sound and it has done just that.

Installation was easy, for the most part. I ordered a subwoofer install kit to make sure I had long and thick wires for power and the kit also included the RCA interconnects I needed and the remote power lead. With a little care and some planning, I was able to set up the wires and test fit the speaker underneath my drivers seat. Unfortunately, I also found that I didn't have quite enough space underneath for the sub enclosure to easily fit. Being an older car, the seats sat fairly low in the car, but I was able to pull the seats, add some washers to space it up, and also trim down some of the carpet so that I made the space for the sub to fit. Oh, and I also was able to pry off the speaker grill, too, to make a bit more space. With all of those modifications, it fit nicely, and I'm glad it did, given the sound quality I'm getting!

As a note, be sure to read the installation manual and follow all the steps to set things up. Initially, I set the sub up intuitively and verified that I was getting sound from it by feeling the speaker, but the manual also had steps to set the gain on the sub, which I didn't do. The resulting sound was disappointing and it seemed like no matter what I did, I was wanting for bass. Once I read the directions and followed them, however, I found myself much happier with the resulting sound and found that I was setting my audio settings back to where I had expected them to be when I first installed the sub I was actually getting too much bass with the gain set correctly and my head unit boosting the bass even more.

All in all, it's an excellent product, especially for owners of older cars that might have been designed with less than stellar sound systems to begin with. It's easy to hide so it's not obvious, but it also adds substantially to the sound that is there, more so than its size might indicate, and it rounds out a small speaker setup perfectly.

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This sub kicks butt! Have a 1967 chevy pickup. This little amp sub combo works perfect. Easily installed. And fills out my stereo. Actually rattles my rear view. I have always been fond of soundstream and bass. But have no room in this truck for anything without fully customizing the cab. Went from having 2 competition 12's in my bmw to this truck. So still wanted bass without sacrificing my space in the cab. My doors have 6x9's and 6's 1/2" pioneer premier speakers and there ran off of a pioneer bluetooth deck. This is exactly what i needed. BASS! Extremely suprized in the quality. Would highly reccomend

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I bought this because I wanted to fill in the bass in my car stereo without taking up a ton of space or costing a fortune. I installed this in a Ford Ranger, and I couldn't be happier! It has plenty of output and does not max out or get distorted at very loud volumes. If you're looking for added bass for your car stereo and have a vehicle with a small interior, I think this will work well for you. It isn't going to be satisfactory if you mount it outside the passenger compartment (don't mount it in the trunk and expect much!), and it isn't going to be satisfactory if you want some thumping thing all the cars around you can hear. By the way, I think the wired remote volume/level control is kind of silly (especially since my head unit has a sub-woofer level control); fortunately, you can just ignore this control don't connect it the sub works fine without it. One last thing, It would not fit under the seat in my Ranger I ended up mounting it against the back wall of the cab.

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We put this unit under the driver's seat of our Subaru Forester. It is not intended for use at high volume, but works well with the small seekers in the doors. I was concerned about cargo space in a small SUV. Wasn't sure about the compact size or an all in one subwoofer unit. Once the perimeters are set it gives the system a nice full spectrum sound.