edmjm Posted March 25, 2018 Share Posted March 25, 2018 I switched out my winged c el34’s for electro harmonix 6ca7’s in my audio space as3i amp to cornwall 1’s I’m very surprised by the difference in sound quality from changing power tubes. first thing I noticed is they use less juice (had to turn them down a full 0.1mv to bias) I immediately noticed a wider soundstage, bass is tighter with a bit more oomph. mids & highs are cleaner & crisper. it’s almost like the winged c’s were just a touch out of focus where the eh 6ca7’s are dialed right in on everything. a word of warning though, I think someone with younger, better ears might find the mids with stock horns a touch sharp or maybe fatiguing (damping the horn might take care of that) overall I’m very impressed & will be keeping these. although I shouldn’t be that surprised cause I’m using eh gold pin 12au7’s in the pre section (& love them) & a vintage telefunken short ribbed plate in the output section 1 Quote Link to comment Share on other sites More sharing options...
mopardave Posted March 30, 2018 Share Posted March 30, 2018 On 3/25/2018 at 4:44 PM, edmjm said: I switched out my winged c el34’s for electro harmonix 6ca7’s in my audio space as3i amp to cornwall 1’s I’m very surprised by the difference in sound quality from changing power tubes. first thing I noticed is they use less juice (had to turn them down a full 0.1mv to bias) I immediately noticed a wider soundstage, bass is tighter with a bit more oomph. mids & highs are cleaner & crisper. it’s almost like the winged c’s were just a touch out of focus where the eh 6ca7’s are dialed right in on everything. a word of warning though, I think someone with younger, better ears might find the mids with stock horns a touch sharp or maybe fatiguing (damping the horn might take care of that) overall I’m very impressed & will be keeping these. although I shouldn’t be that surprised cause I’m using eh gold pin 12au7’s in the pre section (& love them) & a vintage telefunken short ribbed plate in the output section Those used to be my favorite for years with my CW's til i tried JJ KT77's. I think their just a bit more defined or clearer. I would like to try the Gold Lion KT77. Quote Link to comment Share on other sites More sharing options...
Guest wdecho Posted March 30, 2018 Share Posted March 30, 2018 11 hours ago, mopardave said: Those used to be my favorite for years with my CW's til i tried JJ KT77's. I think their just a bit more defined or clearer. I would like to try the Gold Lion KT77. I have a pair of the Gold Lions KT77's in my newest EL34 tube type build. Excellent sounding. Cannot comment on better than JJ's never owning a pair though. Quote Link to comment Share on other sites More sharing options...
mopardave Posted March 30, 2018 Share Posted March 30, 2018 1 hour ago, wdecho said: I have a pair of the Gold Lions KT77's in my newest EL34 tube type build. Excellent sounding. Cannot comment on better than JJ's never owning a pair though. Those GL will be my next tube purchase. Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted April 7, 2018 Share Posted April 7, 2018 The 6CA7 fat tubes are nice and I like the sound. I also like the the Tung-Sol EL 34's. These tubes on my amp are well balanced from top to bottom. The bass is tighter and the midrange is excellent with sparkling highs. The 6CA7 has a more airy bass and a bit deeper although that is not necessarily needed with the speakers. Experiment and enjoy! Quote Link to comment Share on other sites More sharing options...
edmjm Posted April 7, 2018 Author Share Posted April 7, 2018 absolutely, experimenting is what’s so fun about this hobby 2 Quote Link to comment Share on other sites More sharing options...
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