Toddcowless; you remind me of a good point I read in some reviews if I remember correctly, the XP-10 has bass plus, but XP-20 has bass in a controlled, subtle and appealing way. I've had some great CJ pre's like GAT version2, ET-7, and have an ET-5 and Premier 16LS2, and Premier 17LS. The most quiet were GAT -2 and ET7 as well my ET5. I can not say the Premier 16/17's are at all noisy, but they are warm and inviting with detail still. The XA25 arrives next Friday and I have a weeks worth of burn in till listening. Thanks for the XP-20 thoughts. I'm thinking....