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Prilaluna Prologue Premium with KEF LS50

Hello all!
I just purchased a used PrimaLuna Prologue Premium with stock tubes. It replaced a Sophia Electric Baby amp. The Primaluna seems to have a peaky upper midrange I can't seem to tame. I doesn't seem like I can see inside the music like with the Sophia. For example if a flute player takes a breath I can't hear it as well. I have tried cables with no luck. Any help?
Thanks in advance.
Ben
honashagen
Ag insider logo xs@2x
muzikat
926 posts
 
Change the tubes. Stock ones are not great
honashagen OP
137 posts
 
Turns out it is on the 4 ohm taps. Ant recommendations on tubes?
zd542
5,339 posts
 
Try the 8 ohm taps.
mechans
3,048 posts
 
The stock tubes may be doing the sound any favors. Lots of discussion about this, do a search. In addition Kevin Deal has tubes for rolling for sale, you can ask him for help with his amp.
Ag insider logo xs@2x
muzikat
926 posts
 
Change the tubes. Stock ones are not great
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