JJ Kt-77's are killer tubes that can be swapped in place of any EL-34. They are basically a "Super El-34" IMHO as they have a better electron flow construction than any EL-34 (because they were designed to do many things better electrically than 34's comparably). When I compared them to NOS Svetlanas (cryo'd too), Triple point matched Electro Harmonics, cryo'd JJ EL-34L's, NOS Mullard XF-2's....the KT-77's prevailed above all. These tubes are much more linear top to bottom, more transparent, better focused sound stage with better bass definition and cleaner treble to boot! They had me discover something I wasn't even aware of when I compared them to all the other el-34s. The 34's all have what I would call a "pasty" high end (to varying degrees mind you, the Mullards being the least offensive here) that I wasn't aware of until I substituted the KT-77s during comparisons, where the 77's highs where clean as a whistle! The only downside the 77's have sonically is that they are not as bloomy or romantic in the midrange as some of the 34's. That is a coloration IMHO but I can see how it may help some systems sound more involving. What more can I say, I love these new 77's that were just brought to market a little more than a year ago.
- ...
- 32 posts total
- 32 posts total