.
SP-9 Mk3...didn't like it at all.
LS-10...blackest background I ever heard. This preamp was so
good, I bought it twice. When this preamp was good, it was
incredible, but could be inconsistent on certain recordings.
Extremely rare, they only show up for sale on the used
market once every five years or so.
Ref-1...loved it, except for periodic mid-bass bloat on some
songs.
Ref2 Mk2...excellent preamp, solid from top to bottom.
Ref3.......Game-changer. Head and shoulders above the very
excellent Ref2 Mk2. I still have it and love it.
.
SP-9 Mk3...didn't like it at all.
LS-10...blackest background I ever heard. This preamp was so
good, I bought it twice. When this preamp was good, it was
incredible, but could be inconsistent on certain recordings.
Extremely rare, they only show up for sale on the used
market once every five years or so.
Ref-1...loved it, except for periodic mid-bass bloat on some
songs.
Ref2 Mk2...excellent preamp, solid from top to bottom.
Ref3.......Game-changer. Head and shoulders above the very
excellent Ref2 Mk2. I still have it and love it.
.