The Sttaf is pretty much as close to being a "traditional" speaker as you can get. One woofer. One tweeter. Crossover. Cabinet. Average sensitivity and power handling. Good frequency response. In short, it's a very good speaker - but electronically / electrically it's like most any other speaker - both from Totem and from other brands.
Outlaw's electronics are pretty much as close to being "traditional" solid state electronics as you can get. They're essentially noise and distortion-free - and flat within the audible frequency range.
My point?
With any such pairing why would anyone expect that the pairing itself would be factor? I'd bet dollars to doughnuts that nobody using Outlaw electronics with Totem speakers would ever have a problem traceable to either brand's inherent "characteristics".
Just as I'd bet that nobody would have any concerns about the pairing of any other such electronics and speakers.
If your question was about the Sttaf itself, paired with the 990/7125, I suspect they would sound great - owing largely to the speakers, and not the electronics. (Again my point being that any clean solid state electronics, driving a traditional speaker, will not be heard.)
Totem speakers have never failed to impress me whenever I've heard them.
Jeff Mackwood
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Jeff Mackwood