I've been interested in audio since the mid-80's. There are two electronics brands from those early days that I've heard about but never actually heard: Spectral Audio and Jeff Rowland.
I didn't see either at T.H.E. Show Newport. I've never seen either at a store. There's an occassional JRD review; I've never seen a Spectral Audio review. Neither company's products have been on the Recommended Components list for at least the last two years.
So what does a Spectral amp sound like? How much do they cost? Why do they play so hard to get? Do they play well with other equipment or do you need an all-Spectral system?