Which REL sub, R528 or B2

I have a REL Q150E that is anything but "slow"...just a beautiful sounding little front firing sub that works really well. I shall continue to defend it regardless of the naysayers! Perception of "slowness" from a sub likely has to do with placement, or listening rooms of more than 10,000 square feet in damp unfurnished Medieval dungeons...like my guest house.

Bo1972 you have confused me with the "slow" comment a bit. A reviewer of Tone Audio writes "B2 was more then fast enough to keep up with these speakers (panels)" and again "it was also a great match for the Manger Zerobox speakers and that is one of the fastest speakers I've ever heard"
It must be some setup issue...

I sold and tested the Rel Q150E. It is a paper low freq. unit. This never will be fast. Wenn you think this is fast? I do not think you understand stealth low freq? There is enough music what will be not syngron with the music. Instuments and voices still need to be very sharp focussed. I never have heard a Rel do this. Paper units means slow. No argument about it. A Monitor Audio PLW-15 is so much faster in respons compared to any Rel subwoofer. I sold them for many years. Now I will never sell them anymore. Because I do not want my clients get this average quality. It is that simple. If it would be good, I would have used it!!

Bol1972...I don't give a rat's ballsack about what you sold, and condescension and dismissal of other's opinions make you sound like my Uncle Dick. After over 40 years as a professional musician, professional live sound technician, audio fan, and male model (well...not the last one), I've found that you can tell a lot about how things sound by listening to them. Period.

Well said Wolf