Yep, it’s an early KSA200, it doesn’t have the balanced inputs (KSA200b). Very nice amp, I had one, but the KSA250 is quite a bit better. I was interested in the Apogees and then had a bout of sensibleness.
The KSA200 is a lot better than the early KSA100.
KSA200 is good for 340W per channel in 8 and doubling down to 0.2 Ohms, so will drive anything easily. In fact the more difficult and bigger the speakers the better they sound. True class A, not some of these psudo class A crap you see about with a heatsink the size of a wasp.