mikew31, I have one SC, and am wondering about adding a second. Do you use the pair of them all the time, or is one adequate for many or most situations? I've only had mine a short time and haven't had the chance to really work it hard.
Truthfully, I can get away with one most of the time. I play in three bands and all are sonically different.
One is 80s hard rock (AC/DC, Bo Jovi, Def Leppard, etc) and I always use both SCs on stage since I'm competing against two guitar tube amp half stacks, keys, and loud acoustic drums. I always have PA support, but the depth of sound on stage with both cabs is awesome. I can hear myself and so can the rest of the band. I used one for awhile, before I could afford the second, and got along fine, but it was a little tough at times. I pushed the cab pretty hard and it sounded great. The second made everything effortless.
The second is mostly 80s rock along the lines of John Mellencamp, The Cars, The Boss, John Cafferty along with some bar band classics - BEG, Mustang Sally, Old Time Rock and Roll, Johnny B. Goode, etc. This band is definitely quieter than the first, I can use one cab, but always use two because I had both when this band started and two just sounds sooooooo good.
The third band is an originals 3 piece with a female singer. We play rock music at smaller venues. The drummer can be very loud, but overall we're not really loud. I've only used one cab with this band and it has always been more than enough.
Long story short - one cab is enough but two is just better
