I replaced some well regarded Adcom separates- GFP-565 pre-amp, and GFA 5800 power amp(200wpc). I am currently using PSB Stratus Golds for speakers. The ONLY aspect where I preferred Adcom over the RR2150 was a lack of sibilance that is now noticeable through the Outlaw. I don't know how, but the RR2150 has better bass slam and definition. The midrange seems to have more texture, and the soundstage seems deeper. This thing is a real pleasure to listen to. I'll take the slight sibilance- because along with it seems to be a lot more music- this receiver is just a lot of fun to listen to. Last year, I had purchased an NAD C320BEE integrated amp, and though it sounded good, it would simply peter out beyond a certain volume. And it was 'polite' sounding. The Outlaw does not peter out, and is definitely not polite. I would not pair it with very bright speakers. My downside qualities of the Outlaw are ergonomic, not aural: The remote seems to turn the volume control 25% whenever you touch it- slight adjustments are not possible. Using the volume control on the unit itself is better, but still requires a deft touch for small adjustments. I wish the LED readout were able to be changed to rename the source inputs. I'll update this when I add a sub- one of the reasons I was attracted to this unit was the bass management availability. If anyone is on the fence, go for it.