Four Hour Tube Amp Warm-Up


My Primaluna Tube amps require a 4 hour warm-up in order to enter the Glory Zone. My previous Muzishare X7 tube amp was the same. Just wondering if this holds with the experience of other tube ampers.

bolong

When I had my Viva, it was 45 minutes. You could set your watch by it. 4 hours seems long, but who knows.  Ask Kevin from Upscale.  He’s pretty familiar with that brand so I hear. 

Solid state monos here: on and idle about 6-9 pm , listening about 10 am or so, that is my laser beam zone, where the sound just lasers my ears with clarity and envelopes me with perfection. 
same with pre and spinner, on and morning listening, there is a huge difference from initial “on” and the 12-20 hours at idle to warm.

the odyssey strato amps take about 5-7days……yup days, but worth the wait.

clariy, bass, crunchy Mustaine mids! 

No !   I have had Rogue Audio amplifiers (Cronus magnum integrated, stereo 100 power amp). 

Each of them starting sounding great by the end of a record- e.g. 40 minutes or so.  

Definitely an improvement after side 1, maybe an hour max.  

Yes, with my past four amplifiers, all Class A or Class A/B, here is what I’ve noticed. This includes Tube and Solid State amps with big iron transformers though:

45-60m: sounds pretty good, and initially I’d think its warm enough.

120m no major changes but still sounding good. Close to the same as 60m.

240m (4hrs), with the big transformers now fully heat saturated, 3-dimensional sound kicks in, with sounds coming from the sides and slightly to rear of me too.

  • My local 50+ year audio tech and builder colleague tells me "its the transformers getting to be fully heat saturated is when things can begin to sound magical" on some of the better amps w quality transformers.
  • My local dealer fires up his amps at least 4+ hours prior to letting any customers in the door for listening sessions.

Longtime PL user.

5 minutes warm up, and it's ready for overdrive the next 4 hours.

I don't have 4 hours to wait for anything to perform "better."

I'd get my hearing tested and avoid reading audio forums.