For fun I added a Sonic Frontiers SFL-1 to my system. I used to use my DAC to do double duty. I was prepared not to like the sound, but my wife and I both felt there was a significant improvement particuliary vocals and guitar.

The SFL-1 is a single ended hybrid with 1 tube. I am wondering if a fully balanced product with more tubes will improve the sound that much better.

If the above is true can anyone recommend a balanced tube pre that won't break the bank?

BB