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PrimaLuna Evo 200 underwhelming

Hi all, I wonder if someone can help or advise. I bought an ex. Display Primaluna Evo 200 a couple of weeks ago, mainly based on all the rave reviews and excellent comments on various forums. I must say, that vocals are terrific but overall, the sound seems muffled. There seems to be a hole where the mid range detail should be. I have tried the 4 and 8 ohm settings and there doesn’t seem a great deal of difference. I am using it with a Linn Genki CD player and Robson Acoustics Opulus speakers, also Vintage Tannoy Mercury speakers. I haven’t messed with the tubes because I have no idea how to do that. I so want this amplifier to sound beautiful but there is something missing. Can anyone help please?
golfnut2
speakermaster
738 posts
 
There is an interaction between your speakers and the tube amp because the tube amp should be strong in the midrange unless a mismatch occurs, which is what you are experiencing.
golfnut2 OP
12 posts
 
Thanks for digging up the info on my speakers and also for the mismatch info. I have tried to swap around the input tubes as suggested and I can’t budge them. I am frightened to use too much force incase I damage something I thought they should easily pull out but I seriously can’t move them.
ericsch
752 posts
 
Try gently rocking them back and forth in all directions while pulling upwards.
jbhiller's avatar
jbhiller
1,399 posts
 
PL has a warm, pleasant sound. To my ears, it was not too detailed. It is a good amp in my opinion to mate with modern loudspeakers that are detailed, analytical and bright as it balanced those things out nicely. 
But I too found that over time PL was not exactly what I was looking for.  I would, however, recommend trying different power tube variants if you can afford it. 
golfnut2 OP
12 posts
 
I will have anther go at swapping the input tubes, they solid though. Apparently the was ex display and never used, it certainly looked untouched out of the box. Just answer an earlier question, the Robsons sounded great through a PL Prologue Pre amp with Cyrus X Power amp. In hind sight, maybe I should have gone for that combo and it may have been a whole different story. 
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