I had the CR-1 and a couple JL e110 subs for quite a while
(paired to my Thiel 2.6 speakers).
First of all JL Audio is a stellar company to deal with.
Really helpful customer service and fantastic products!
id first tried integrating the subs “REL style,” running the
mains full range and adding the subs via the high level
signal input. They meshed surprisingly well in terms of audibility
but not perfect. I added the Dspeaker anti mode dsp just
to the subs and it got a little smoother. Though I kept noting
an unwelcome change in timbre to my system - too dark
and lifeless. Finally I added the CR-1 to cross the subs
with the mains “proper style” and it was significantly better.
I managed to maintain much more of my systems regular
tone while adding the subs. The CR1 was a delight to use.
So easy and intuitive. I loved being able to demo my system
with the subs crossed over or the speakers run full range
at the push of a button. That really allowed me to see what the
subs were adding. Also the CR1 sounded completely transparent!
Ultimately I decided against the subwoofers. I didn’t
find the low bass added much, I didn’t note any particular
clarity or lack of strain in the mids and up, and it still slightly
altered the tone from what I liked. My speakers sounded to
me more finally real and alive and punchy without the subs.
So I sold it all with no regrets.
But I very highly recommend the CR1 for anyone wanting
to integrate subs in the analog domain.