The Cornscala can be a very, very good speaker, depending on who built it and how much thought they put into the process. If you look carefully at Crites' site and read the many comments on Klipsch and other sites, it's apparent that this is very much a roll-your-own experiment.
The positives include that, properly constructed, the Cornscala can deliver a different (not necessarily better) sound than a stock Cornwall. Some would describe it as smoother. To me it's just different. The other advantages are that a Cornscala has almost certainly been modernized and cleaned-up with new crossovers and wiring. Also, you have choices in components (horns, high range drivers and crossovers) that will allow you to tailor the speaker for the room and listening distance to some degree, IF you have a builder who is savvy and will build you a unit to your specs and not sell you a pre-built pair of garage toys.
The negatives: it's still a friggin' huge Cornwall cabinet. Doing it right means that the original cabinet needs to be reinforced with bracing and/or thickened (1.5"-2" seems to work best for resonance control). And, to my ears, the Cornscalas I have heard and sounded somewhat less coherent at near listening distances than the stock Cornwall. I think that Cornscalas are better for larger rooms, but I'm sure that there are those who will disagree.
The positives include that, properly constructed, the Cornscala can deliver a different (not necessarily better) sound than a stock Cornwall. Some would describe it as smoother. To me it's just different. The other advantages are that a Cornscala has almost certainly been modernized and cleaned-up with new crossovers and wiring. Also, you have choices in components (horns, high range drivers and crossovers) that will allow you to tailor the speaker for the room and listening distance to some degree, IF you have a builder who is savvy and will build you a unit to your specs and not sell you a pre-built pair of garage toys.
The negatives: it's still a friggin' huge Cornwall cabinet. Doing it right means that the original cabinet needs to be reinforced with bracing and/or thickened (1.5"-2" seems to work best for resonance control). And, to my ears, the Cornscalas I have heard and sounded somewhat less coherent at near listening distances than the stock Cornwall. I think that Cornscalas are better for larger rooms, but I'm sure that there are those who will disagree.