I just bought a pair of La Scala's and am seriously enjoying them..can't wait to hear what they sound like after a couple hundred hours.
I am a musician and have a full recording studio that's kitted out with Focal powered monitors and a Focal Sub One subwoofer. That sub works great in my relatively small studio space and figured the twin 8" subwoofer with a 200 watt power amp design might fit in well with my hifi listening space (approx 16x15 with cathedral ceilings that peak around 15 feet) as well.
So far I love it..I'm using the XLR balanced outs on my McIntosh MA12000 to feed the Focal Sub One with around a 62Hz cross over and the level set at approx 10 o'clock (6 o'clock is off).
Clearly, the settings fit my room best and others will prob use different settings but I figured I'd include them..
As far as the sub fitting the Klipsch Heritage look? Nope..but the sound is great and you can prob find a place to hide the Focal black box if need be.