Conventional wisdom would suggest REL Strata III or Strata 5 should work well with the 1 SC's, especially for music. I think they are worth a listen, but try to have the audition at home/in your system, just to be sure.
I had a REL Strata II that didn't work well with my Proac 1 SC's, and I am happy with a Sunfire True Sub Mark II replacement. Maybe it was a room effect that affected my REL's sound. (I have an unusual configuration for this system in a sunroom.)
I had a REL Strata II that didn't work well with my Proac 1 SC's, and I am happy with a Sunfire True Sub Mark II replacement. Maybe it was a room effect that affected my REL's sound. (I have an unusual configuration for this system in a sunroom.)