Which subwoofer?

I`m using 2  12" HGS Velodynes with my 3.6 Maggies the integration is outrageous, I also suggest looking into a integrated amp or tube preamp & SS Power amp combination in the near future.

I find myself in agreement with @jwillox . I moved from a pair of ML Descent i sub’s sporting the optional crossover cards with my ML CLX Anniversaries to a more centrally positioned single ML Balance Force 212 and preferred the ease with which a single source base extension integrated with the main speakers and room.

That said for 80% of my music predictions I switched the subs/s off as I prefered the more natural midrange of the CLX’s with their own integrated ESL base panels which measured down to a solid 46Hz -4db  in my room. 

I have a small room and also have ML electrostats. I have them paired with an older Velodyne DD15. Integrates very nicely. IME, I wouldn’t go with anything smaller than a 15. When my Velodyne finally gives up the ship, I’ll be replacing with a Rythmik F15 as it’s servo controlled much like my DD15. I’ve researched a lot into SVS. Great customer service but their subs don’t seem to be well-regarded for music. Geared more toward home theater.

kenrus, 

This might be what you are looking for and they have a 45 day trial plus free shipping!

https://www.svsound.com/products/3000-micro-subwoofer

All the best.

JD

Hsu Research, 18” Velodyne, or the “El Pipo” DIY sub ( this would be my choice”.