Do tubes matter beyond gain stage on preamp?

Do power valves impact the sound? Very much. Low gain stage amps normally have a lower noise floor. That’s the reason why.

Macs, you better pay attention to the small valves. Every step up is a potential to amplify noise to the next stage from ALL those before.. The power valves take it one step beyond.

Power valves reveal every mistake or noise up to that point.. SO add a set of poorly matched or manufactured power valves, to an already noisy preamp section. It can get ugly!
I’ve purchased amps just for that reason and the fix was "matching valves" ONBOARD already.

Do just the opposite, paying attention to matching, balancing, and checking for noisy or vibration prone valves, you’ll appreciate a great valve amp vs hating a noisy pile of CRAP.

There are guys like ME buying perfectly good valve amps at 1/3 the cost.. I bought a MC240 for 1100.00 two years ago. I swapped some valves ONBOARD and replaced one 12BH7 (?) It was a weird one that usually don’t go bad. It sounded like it had a fresh rebuild.. I even offered to sell it back for the 100.00 I spent.. "A deal is a deal", OK I offered..

Chicken feeding time....

Regards

So do you jack it up, or let it settle to an engineered position? Need to take bets on the cost over runs. I say 300,000,000.00

Heavy - next time you find a MC240 for $1,100 buy it for me…..

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Well is it for you or is it for profit? I bought for pure profit from a garage sale.. He had 15 Dual TT if he had one.

I have 1 MC225, 2 MC240, 2 MC275, 2 MC60s (24k gold cases) a pair of MX110z, 2 C20, 1 C11, C2500, MX120, MX121, MX150

You need a good looking amp, untouched I have three almost unblemished 9.0 - 9.6 or better? MC225, MC240, MC275 and a MX110z.

The MX110z and MC225 are two of the best I’ve ever seen.. including NEW in the box.. Never touched original Mcintosh valves. RCA Black plate and Telefunken

I have better stock than most dealers.. Usually. I just HATE dealing with chicken $hit customers.. JUST HATE it..

You want to buy a watch Mister? I got watches.. Step into my Boutique Shop (side of a 68 VW bus). :-)

I just signed on the dotted line to officiate my official retirement, through my Unions. Teamsters and OE. Happy days fellas..

I’m looking for a job.. I can’t stand retirement.. I want some one screaming at me in a foreign language.. Cussing. Poppin’ pills, drinkin on the job, living on Pepto - Bismol. I just want to be the one making that happen.. :-)

What did you mean the building is listing 10 degrees, it was your idea.. SF 110 story building SINKING!!!

I told you ships list, Skyscrapers, TIP, you should have listened.. Engineers!! :-)

Regards

I was gonna become a Chip and Dale but it cost ME to much.

I think it's the tooth (s) or maybe the 1/2 ear that's missing. My glass eye or peg leg, shouldn't be a problem.. The Haiti appendage upgrade did help, bargain-basement price too.. :-)

The price of circumcision doubled? How's does the cost double? Just sayin'

Regards