Nice used tube amp under $1000 used

I have a Manley pre with a Mccormack DNA-1. Thinking about adding a tube amp, but do not want to break the bank. I would like to spend under a $1000 dollars used for a well built, great sounding amp. I would like the more liquid, warmer sound of a traditional tube amp with sweet mid-range. I have a Rel sub, so hope to augment the base if needed. All comments greatly appreciated. Thanks in advance.