Is it time that Klipsch Heritage marketing a subwoofer?

I still don't understand the whole concept of a (2) full range speaker needing a sub. If the engineers designed it for x to y Hz, didn't they take care of a what a sub would/should/could do already?

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.

I know this is an older thread, but I replaced a pair of subs (brand not important) with a single RSL 12S, and it such an awesome match with my Lascalas and my room. 

https://forum.audiogon.com/posts/2543903

I agree re: adding a sub with the La Scala's..unfortunately, some (many) think it's heretical to add a sub to the La Scala's but I don't care..as long as you take the time to add the right sub it works great.