Subwoofer Choice

Last year I purchased the SVS 1000 pro  and a Polk Audio dsw micro 3000 in a 14 x25 foot room and for me it wasn’t enough bass.this year I purchased a monolith with dual 10”woofers and it fills the whole room with no problem.

+1 @lak , go for the S series. I haven't listened to the T Series, but have listened to the S Series and currently have a pair of Carbon Special.  A lot of T series are for sale on Audiogon and USaudiomart, wonder why they don't like the T series anymore.

I own Sopra No2s

Congrats on the purchase of the No3s.  I have a fully treated room w/ bass traps and a JL F112v2.  I find that the Sopra's alone do a great job with a good recording.  If the recording is thin I'll activate the sub to correct the recording.  I don't pay attention to stats, they mean nothing to me.  From real experience, properly positioned and adequately driven, the Sopra's will make a ton of bass.  They are front ported and have a good deal of speed IME.  Be sure to match the speed with the sub.  Speed isn't about size, it's about quality of the driver and power/electronics.  I have two (2) SVS SB4000s in my HT room and IMO the JL is considerably faster.  I the JL makes more power and has a large toroidal transformer that the lower priced SVS does not.

Probably more than other speakers, the Sopra's are sensitive to the grip of the amp.  Pairing your No3s with an amp with a very high damping factor will give you crap ton of clean, fast bass.  

I would get the new speakers in place, run them in, and then decide what your needs really are.  Set up properly with a good source the No3s will be darn near full range.  Again, I always disregard specs and trust my ears.  Good luck and cheers.

Thank you for so much good information, this forum never disappoints and is always so knowledgeable!

So, after further thought (and contrary to my follow up post above) I decided to stick with the REL and buy up to the S line.  I picked up two S/812s.  Maybe the JL hits harder and lower, but hopefully I'll be just as happy with the 812s.  

Someone mentioned the JLA CR-1 which I was considering.  However, can i use it with my integrated amp (Michi X5)?  I don't think i can pre-out and then back in to the same amp can I?

Thank you

@james633 @ozzy 

HSU ULS-15 MK2