New Tubes!!
 

I installed all new Gold Lion tubes in my two McIntosh MC275 amplifiers today. How often do you guys replace tubes? I know it depends on how much the system gets used. I have owned these amps for 4 years and this is the first time to replace the tubes. I don’t know if I should give credit to the tube brand or just the age difference but all I can stay is Wow!!!!! The imaging and dynamics and frequency extremes are all so much better than before. I’m one happy camper!!

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Steve.......Gold Lion tubes in the MC275 are the cat's meow! You should get 6000 to 8000 hours out of your new tubes. Happy listening.

I hope you remembered to shop our very own tube vender, Vintage_Tube.

https://www.youtube.com/watch?v=Vy8yWnf5hPU

:lmao:

Best Sir,

Bob

Steve,
Glad you're loving the GL re-issues.

When I swapped out the McIntosh tubes in my 275 I got better dynamics, smooooother mid-range, and better definition on the highs.

I replace tubes about every 6000 hours, which for me is every 5-6 years. I listen on average 20 hours a week.

Tom

I'd replace power tubes WAY more frequently than every 4000-6000 hours. I've now replaced 2 full sets (a dozen each) of Tung-Sol KT120 that were at somewhere between 1000-2000 hours (Rogue Apollo amps), and each time noticed a distinct sonic improvement with the replacement set.

Small 12**7 tubes seem to last much longer; haven't had one go bad yet, but then I also use only vintage models there, and I've had the tendency to roll/rotate them quite a bit over the years.

At that rate you need to buy 'em at $46 each in matched pairs, quads, sextets, or octets.:scratch2:

Best Sir,

Bob

Good to know :D :thumbsup:

You can try KT88-Z, combine with Telefunken, Mazda or Philip mini watt on 12ax7 tube socket. It will sound wonderful.