2. amps-preamps
  3. 166963-33693

Preamp tubes in power amps

I’ve had tube gear for a decade but never, until recently, looked into how it functions or how to optimize it. So, my basic question is, my Rogue Magnum M-120 monoblocks have their power tubes, and then also a couple of 12AU7s and one 12AX7.

Would replacing those with NOS higher end tubes like a Seimens or a Mullard have much benefit?

Or would my tube budget be better spent replacing the new production 6922s in my BAT VK-3i with some higher end NOS tubes?

I figure I can’t afford to replace the power tubes until they die. But looking to see where the best bang for the buck would be on the preamp tube side of the equation.

Thanks to all who answer the actual question!
Ag insider logo xs@2xjji666

Showing 1 response by decooney

decooney
1,906 posts
 
@jji666 
Read the 2nd paragraph about Upscale and 7DJ8s in the Vk-3i preamp. Seems like staffers there might not be on the same level as uncle Kevvy.   
https://www.audioshark.org/balanced-audio-technology-bat-38/tube-noob-seeking-education-11051.html#p...

Agree with others, give Brent Jesse a call, and see what he might have in stock. Start with preamp tubes first, for sure. Then, after they are broken in, try input tubes in the amp next. Another tip, I have multiple pairs of super matched curve-tracer balance tested tubes from Brent for my amps.  While they have a deeper sound stage in some cases, I've been having some luck with the latest PSVANE MKII or Art Series 12Au7, and same with friends using the 12Ax7s from PSVANE fwiw.  A little more midrange/forward with them but they sound nice for new production tubes. Best of luck. 
More to discover