I was using a 7140 as my preamp (mainly for the fine phono section) and switched to a Wright Sound WLA12A. After trying both a Dynaco PAS and a Foreplay, I still preferred the 7140. Going a slightly different direction, I fell in love with the 6SN7 sound of the Wright. More detail, lower noise floor, much deeper soundstage. Guitars are especially good now, with harmonics that just didn't appear with the others.
If you're going Mapletree, I'd recommend a 2A or, if you need phono, the 4A. Both use the 6/12SN7 and tube rectification, and should give you a major improvement.
David
If you're going Mapletree, I'd recommend a 2A or, if you need phono, the 4A. Both use the 6/12SN7 and tube rectification, and should give you a major improvement.
David