Subwoofwer for Dynaudio

A JL Audio F110 should work well.

I had the Contour 1.3SE's and Plinius 8200 MKII about 5 years ago paired with a REL Storm MK III. I highly recommend REL subs. The model really depends on your room size.

General rule of thumb:
* small room - REL Strata
* medium room - REL Storm
* large room - REL Stadium

Or you can opt for the newer B series, but they are more expensive. You can probably get a used B3 for $1,200 or so.

Thanks for the feedback. I owned an REL Storm III and while it sounded great the quality was abysmal. It broke down twice under warranty and three times after the warranty expired. I was able to negotiate reduced cost repairs with Sumiko each time but the whole experience left a bad taste in my mouth.

I've heard good things about SVS, Hsu, Velodyne and Paradigm subwoofers. Does anyone have experience with these subwoofers paired with Dynaudio.

Thanks

I have Dynaudio 1.3SE myself.
Amplifier is Quad 99/909.
I use a REL R-205.
Sounds good to me but I did not compare to other subs.
Room is rather small (6x4 meter)
Never had any problem concerning reliability.

I have a Rel B3 that is 6 years old without any problems. Blends in well with my C1's.