it is an excellent slim profile with clean and clear bass. You don't hear rattling or distortion. Got this as part of the Kef T305 speakers. might get one more for a second sub. All pluses so far.

I bought a set of KEF 2 speakers together with a DENON AVR-X2400H AV and couldn't be happier with it!! The overall sound is perfect for my room and it thorouoghly enhances our TV which is a Sony 65" OLED. Great service from Richer Sounds Bromley too!!