2. amps-preamps
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input tube rolling on manley neo classic 250's

the amps come with EI 12au7's,they sound good except i would like a little more on top,i tried the siemans nos and they made the midrange sound very thin and the top end was so so,i have tried mullard nos and the top was to die for,but the base was soft and the midrange was very layed back,not what i am looking for,I do love these amps otherwise,any thoughts

Michael.
rediculus

Showing 1 response by entrope

entrope
482 posts
 
There is no substitute for a Telefunken 12au7. ITT 12au7 also very crisp top and mids with good bass though they are hard to find. There are always the RCA cleartops which are solid performers though may not please you on the top end. I have always found Mullards soft sounding-even mushy.

This is based on my experience with an ASL 300b amp.
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