Anyone hear Dynaudio subwoofers

Evidence Temptations.
Yes.
15x18.

Have the Sub500 here mated with the Focus 220/140 for an HT setup. However, I also have the Confidence C1's and have tried it them as well with excellent results. I do have a treated room.

I find that it's very musical and very fast. The Sub300 is equally as good.

10 year thread bump Swampwalker 8^0

Found Two - New Old Stock BM12s in a Studio. never out of the boxes.

Specs

18hz - 250hz.

12" woofer
Phase adjustment in 0° / 90° / 180° / 270°
Remote Control, Subwoofer level control
Adjustment of crossover frequency ranges
Storing and recalling presets
Low frequency extension adjustment
250 W amp

I think the amp is class A/B by the size of the heat sinks. No info available on it.  They would only be used for 60hz and down 2 channel music in my second room. They are a good price; are they worth pursuing.. or should I move on? 

thanks in advance for any replies.
Cheers 

Thanks, CT for thinking of me.  As of now, I am running active bi-amplified OB speakers w 2, 10" woofers on each baffle, driven my 200 wpc crown class 2 amp.  Haven't cheked it out w pipe organ, but no sub needed for any other use, IMO.  But I appreciate the time you put in to your response. 

IMO your better off buying a JL audio or Rel having had all three