Just picked up a REL Strata under $1k to match with my Sonus Faber Grand Piano's and it made a SIGNIFICANT difference. The result was much more than what I've expected, with increased dynamics, more holographic imagery/airy, and the ability to produce tight/punchy/fast bass with great definition and clarity. I would say it's a seamless integration to my GP's. Probably one of my best upgrades in addition to the Cary cdp. I totally recommend it.