I use 2 PSA V1800 subs with Klipsch MCM 1900 stacks in front and Klipschorns in the rear. I think the subs blend in very well.
Horn Speakers and Sub Woofers
How difficult is it to mate conventional subwoofers with horn speakers, in particular Klipschorns. I'm moving my 1987 Khorns to the large living room for a 'home theater' setup. (I have two good corners for the Khorns). I am thinking of adding one or two medium sized Rel subs to the setup to use for movies. Have you tried subs with Horns or corner horns?