In Phase USW300 - 300W Underseat Compact Subwoofer

I wanted bass I could control from the front. The bass is punchy for such a slim unit. It is best for adding depth rather than massive volume. Happy with the result. I was pleased with how quickly it arrived.

I didn't want a massive box taking over the boot. I needed an additional cable for my stereo. Once sorted, the unit sits neatly out of sight. I'm glad I made the change. I rang to check a detail and got a clear answer.

The factory speakers were missing the low end. There's a noticeable difference without filling the boot. No regrets so far.

I wanted bass I could control from the front. The lower notes sound much fuller now. For the money, I'm satisfied.

The lower notes sound much fuller now. I'd recommend checking fitment first, though.

I was after a bit more bass, not a competition system. The bass is punchy for such a slim unit. I needed an additional cable for my stereo. It's been a good addition to the car.

I was upgrading the standard audio system. It adds just the right amount of bass. For the money, I'm satisfied.

I was upgrading the standard audio system. There's a noticeable difference without filling the boot. It does what I bought it for.

I wanted something discreet under the seat. The bass is punchy for such a slim unit. I needed an additional cable for my stereo. I'd recommend checking fitment first, though.

The unit sits neatly out of sight. Would buy from here again. Delivery was quick and everything arrived safely.

There's a noticeable difference without filling the boot. You do need to check clearance under the seat, but I'm happy with the end result.

I was after a bit more bass, not a competition system. There's a noticeable difference without filling the boot. You do need to check clearance under the seat. Overall, I'm pleased with it.

The unit sits neatly out of sight. I'd recommend checking fitment first, though. Packaging was decent and the box arrived in good order.

My existing stereo sounded a little thin. The compact format really suits my car. Fitting took a little longer than i'd planned. I'd recommend checking fitment first, though.

It blends well with the door speakers. I needed an additional cable for my stereo, but I'm happy with the end result. Delivery was quick and everything arrived safely.

There's not much room in my small hatchback. Don't expect it to behave like a huge boot sub. Once sorted, it adds just the right amount of bass. Happy with the result.

I wanted something discreet under the seat. Music feels warmer at normal volume, but I had an installer run the cables neatly. Not bad, just slightly more involved than I expected.

I wanted something discreet under the seat. Don't expect it to behave like a huge boot sub. Once sorted, it's a good compromise between size and sound. Good for what I needed. I was pleased with how quickly it arrived.

I listen to music on the motorway. It's a good compromise between size and sound. I'm glad I made the change.

The factory speakers were missing the low end. There's a noticeable difference without filling the boot. I had an installer run the cables neatly. I'm glad I made the change.

The compact format really suits my car. I'd recommend checking fitment first, though.

There's a noticeable difference without filling the boot. Fitting took a little longer than i'd planned, but I'm happy with the end result. Customer service answered my compatibility question before I ordered.

There's not much room in my small hatchback. It's a good compromise between size and sound. Would buy from here again.

It adds just the right amount of bass. It is best for adding depth rather than massive volume, but I'm happy with the end result.

The boot needs to stay free for work equipment. I needed an additional cable for my stereo. Once sorted, the lower notes sound much fuller now. It's been a good addition to the car. It came well packed and earlier than I expected.

The wired bass control is surprisingly handy. I had an installer run the cables neatly, but I'm happy with the end result.

There's not much room in my small hatchback. I played with the crossover before it sounded right. It's a good compromise between size and sound, so I'm keeping it for now.

The factory speakers were missing the low end. Music feels warmer at normal volume. Would buy from here again.

I wanted something discreet under the seat. It adds just the right amount of bass. Happy with the result. I was pleased with how quickly it arrived.

I wanted bass I could control from the front. It's more than enough for everyday listening. No regrets so far.

The wired bass control is surprisingly handy. You do need to check clearance under the seat, but I'm happy with the end result.

There's not much room in my small hatchback. The wiring is worth planning before installation. The compact format really suits my car, so I'm keeping it for now.