Have a Speedwoofer 12S connected to a Sennheiser Ambeo Plus soundbar. With the sub volume at 45-50%, it’s all you need to rattle dishes in the kitchen. This sub has exceeded all expectations and keeps on delivering. I am thoroughly satisfied. Shout out to Joe Rodgers on helping with a technical issue with another brand soundbar that wouldn’t work with the 12S. (Pic is the sub with a cover my daughter fabricated and a cat-mat to keep those annoying fur balls from resting on it).

The pair Speedwoofer 12s I got sound and measure great. Measured in room response is flat to 20 Hz. It's exactly what I wanted and totally meets my expectations.

For an improvement: please round or chamfer the top edges that run from front to back, since the woofers aren't very handsome. Aesthetically, they need something simple done to them to make them more attractive.

My 8 year old Polk Audio 12in sub died, and I wanted to step up my 7.1 system. I found RSL via google search, then youtube reviews that were all glowing at the cost / performance.

I decided to purchase the 12s and 3 CG23M's for all my fronts. With a couple calls to RSL support to help out a noob; running Audyssey a couple times on my Denon. I cannot believe how much sound I was missing, the advice on where to place this 12s from Joe and crew was the icing on the cake. I have large 20 x 33ish theatre room in the basement and this thing rocks it all, with great placement to the side of the room via wireless kit.

Lovin it ! Was worried the little bookshelf speakers wasn’t gonna be enough for this big room,with 15’ cathedral ceiling. Let’s just say they get loud in here. The sub will vibrate the walls on real deep bass. And that’s straight out of the box using a tape measure and a spl app on phone. I need break down and Dirac let it do its thing. If my financial advisor will give the ok I might get small sub and couple more speakers.

I gave had surround sound for almost one than I remember. As I built my system over time, my speakers are mismatched. I just purchased Klipsch for the surround, have Boston Acoustic towers for the front, and have Bose for my atmos. I replaced an old Dahlquist 400w sub and an old Acoustic Response center with the RSL 12s sub and RSL CG23M for the center. I wish I had known about this company years ago. The bass is awesome. I can get the nice rumble while watching a movie that makes you feel you are there, but not the loud deep roar that drowns out the rest of the sounds. I did get the most powerful, so it is bulky and had a lot of weight. But, it has a nice look to it. I used to be a low voltage electrician and have installed many surround sound systems, including Bose. I have never heard the clarity and quality, even from the Bose speakers.

I bought these to try them out as I was looking for a set up for my mother. I wanted something clean, clear, and didn't break the bank. This was it. She is 75 and had never had something like this. She is overjoyed with this company and the quality of sound the speakers produce. I bought her the less expensive sub, but more than enough for her. Well worth the money. You won't regret purchasing any of these speakers.