Naim amplification does have PRaT, but I’ve now heard other brands that offer sufficient PRaT but with more tonal color and richness than what I’ve heard from Naim amps. Pass amps stand out to me in this respect. @ghdprentice I’ll have to check out Audio Research, Conrad Johnson, and VAC as I haven’t listened to amplifiers from those brands since the 90s.
Another lesser known brand that comes to mind for me is YBA, I listened to a YBA Integre DT integrated back in the 90s and the golden hued warmth of its sound (along with good PRaT) has stuck in my mind to this day. Unfortunately this French brand doesn’t have great distribution in the US.
Exposure from England might be another brand to check out. I find that small British integrateds often offer good PRaT, while big, powerful and complicated Class A/B American amplifiers don't seem to convey PRaT more frequently than not in my experience. I've heard that explained as the big power supplies that power these big amps can't turn on a dime.
