Suggestions for a good stereo preamp and amp


I have a pair of b&w 704s, which I have been driving with Rotel rsx 1057 for the last 7 yrs. My receiver is not working.I need to repair it with factory later. I also have a Rel T1 sub and Oppo bdp93. The speakers are 150w in 8 ohms. The rotel only had 75 watts/Ch, and I always thought I never did justice to the speakers. I still want to stay with 2.1 system,but need to move to separates.I do not have a very large budget, but may be able to spend up to 1500 dollars. I heard about Emotiva, but not totally sold on it.If some of my good friends who own a pair off b&w speakers can offer suggestions, that will be wonderful. This system is in the family room, not enclosed.
mammen1
Do you have any interest in trying tubes anywhere in the chain;in your case most likely I think would be pre-amp.
What kind of music do you like to listen to as well?
Mammen, At $1500 I would strongly recommend your considering an integrated amplifier. There are several in that price range, new or used, and likely represent greater sonic value and avoid the need for an interconnect. Am not famillar with your speakers so hesitant to recommend a particular model.
Perhaps a B&W owner can chime in, but I've heard this brand can be somewhat forward/bright , in which case an Anthem 225 or NAD c375BEE integrated would be good options.