I find with older music from CDs or MP3s, 60's,70's, example Beatles Penny Lane, sounds very poor on a RF3-II setup with a HK525 receiver. Hard to describe but it sounds rough, not pleasing at all. Same with older MP3 material.
My old cheap speakers and receiver gave a much better result.
New music, DVD's, etc sound excellent.
Problem is I enjoy a lot of the older stuff, whats up here, I'm on the verge of selling them, any suggestions?