Alpine Electronics SWE-815 300W 8" Active Subwoofer, With Custom Enclosure, Remote Control, 4Ω Single Voice Coil

Installed this in my vw polo. More than enough for the small car. Speaker definitely packs a punch. Very simple to install. Just have to run some wires through the interior trim. Very strong good bass. Makes a huge difference. Recommend this to everyone looking for a first time sound system upgrade in their vehicle. Worth the price tag .

This is a quality bit of kit. If you want to suppliment your factory installed system or you only have a small car, this is the sub for you. You don't need pre-outs, so you can keep your factory head unit and connect this up to the rear speakers. It has a built in line out converter. So its a total package, no seperate amplifier or LOC needed.The remote makes it really easy to adjust the bass to suit the song or your mood without having to fiddle with settings on an amp or your head unit.Power wire really needs to be attached to your battery. It can be awkward to route the wire through your firewall and into the engine bay. I used the existing rubber grommet for the main wiring loom behind the glove box. It was awkward, but I got the wire through using a thin stiff piece of wire threaded through, taping the power wire to the end and pulling it through.You also need to attach a wire to a switched 12V feed when the head unit is on, so a multimeter really comes in handy to find the wire you need.You get all the wires with the unit, so you shouldn't need to buy anything else. I recommend soldering the wires where required so you get a good permanent connection. I soldered the ignition/stereo live and the rear speaker connections. If you self install, there are a few video's online that can give you some tips.I bought this as a 'open box' special for £85 and its well worth its money.

I’ve got a Toyota Aygo and the speakers in it just aren’t capable of producing any real bass frequencies. There was just silence where there was supposed to be low bass lol. I’d never imagined being able to fit a sub in such a small boot, at least not one that would be any good and was even looking at getting a new car because of the rubbish sound from the standard speakers. Then I came across this and after reading the reviews I bought it and installed it. Wow it completely transformed the sound in the Aygo. I now have bass and loads of it. I can now hear my music how it is supposed to be. I had already upgraded the head unit and used the RCA sub output and once I dialled in the crossover settings it sounds incredible. I just can’t believe how this tiny thing puts out so much low end (especially when vented) it comes with all the cables you need to install except the RCA leads if you have a sub out on the back of your head unit.

You’re probably looking to see how loud this is, I had fair few subs back in the max power days so I know what’s expected. I’d say if you have a standard factory sound system in a small or older car then this will be an upgrade, not shake the whole car to pieces loud, but it’ll more than add the bass that’s missing and you’ll be happy for the money you spent. If you have a newer or large car with a premium factory system like Lexus, Volvo, BMW then this won’t add much, you’ll notice it but it’s not adding anything to what’s already there. I fitted this in my older RX8 with a Bose system which had ok but not great bass to begin with and this is a perfect upgrade, I want to keep the car light and doesn’t take much space. I wasn’t sure if it would do for my newer Lexus with a Mark Levinson sound system and after fitting in the RX8 it don’t think it wouldn’t have added much at alI to the Lexus, I would need a single or twin 10/12 with 800+ watts to have that rattle the whole car amount of bass. Overall it’s a great small sub and the controller is nice to have when the partner has a headache. If you have a lack of bass to begin with or a small car this is perfect.

I didn’t expect much from this subwoofer at first given how it’s only 100w rms but once I set it up, it blew my mind. The bass is really loud, it’s punchy when it needs to be punchy and it plays the deep low end bass when it’s there. I even need to turn down the subwoofer volume quite a bit.I can also feel the bass all the way from the driver seat and if you’re on a tight budget then this is 100% worth it. I don’t see myself upgrading the subwoofer anytime later.There is a vent port which you can optionally seal but the vented mode gives you punchier and louder bass but sealed mode gives you tighter more accurate bass.

I recently purchased this in-Car Subwoofer and I am impressed with its powerful sound and overall quality. However, I must say that the installation process was a bit tricky, despite the fact that the product did come with everything that was needed.The subwoofer produces deep, resonant bass that adds an incredible dimension to any music played in the car. It is well-constructed with sturdy materials, which ensures that it can withstand the vibrations and bumps associated with driving.However, I did encounter some difficulties during the installation process. Although the product included all the necessary components and wiring, it took some effort and time to correctly connect everything. This may not be an issue for experienced car audio enthusiasts, but it could pose a challenge for those with less experience.That being said, I was ultimately able to install the subwoofer correctly and the resulting sound was worth the effort. The powerful bass adds a new level of depth and richness to my music listening experience in the car.