It is hard to guess what others might consider lush and warm, but, in my experience, none of the Audio Research linestages short of the Ref. 3 fit that description.
What kind of price range are you looking at, what are your other requirements (e.g., remote control, type of inputs and output (balanced/unbalanced), built in phono), etc.
What kind of price range are you looking at, what are your other requirements (e.g., remote control, type of inputs and output (balanced/unbalanced), built in phono), etc.