Has anyone added a small subwoofer to 2 channel and been thrilled with the result?


The subwoofer can of worms.
I’d like to add some bass to my otherwise fine 2 speaker setup and have limited space so perhaps a single 10in?
After a few weeks of research the only conclusion I can come up with is - everyone agrees they have to be setup properly. Every brand and technology has their own following and most recommend using 2 (which I don’t want due to space concerns). My room is 12 x 13 ft with box raised ceiling.
After much research, these are the subwoofers I’m trying to pick from, for various reasons:
Rythmik FM8  - lots of hifi fans
JL audio e110 - fantastic support
REL T/9i - sort of a gold standard
KEF R400b - interesting technology, makes me grin. 

I've never heard any of these.
System:
Hegel H160
SF Concerto speakers on stands.
Ben
casteeb
Yes a sub warms up the sound...

I love my 2.1 setup with Velodyn sub. 

You won't be disappointed with a good setup.

Does your pre have a sub out?

H160 has variable Line Level (RCA) right, left and the node2i I'm adding will also have sub out.

I'd like to get both R+L into the subwoofer.

Some controversy with adding REL high level off the speaker outputs. Hegel says no don't do it and REL says they have done it at shows with Hegel.... thus the can of worms of subwoofers.




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All of my systems include a subwoofer (or two or three or...).

I have a couple off small computer systems in smaller rooms and use small sealed subs in both, a Rythmik F12 in one and a SVS SB12-NSD in the other. I love Rythmik subs and think they are hard to beat for the money, but SVS is no slouch either. The SB12-NSD is an incredible bargain right now. They have been discontinued and heavily discounted. You should add that to your list.