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McIntosh MR78 upgrades?

I have an MR78 that's working well. 

I can bring it to Audio Classics, and for about a grand, get the power supply and audio section upgraded, and the tuner will be aligned. 

There's another shop, maybe 2 hrs from Audio Classics that does a power supply upgrade for $250, plus an alignment would be billed based on actual time on the bench. So let's say $350-$400. 

Is the audio section upgrade worth $600? Would be most interested to hear from people with Mac tuners that have had them modernized. 
128x128zavato
tablejockey
3,922 posts
 
Kenny-

I believe you just want to fuss with the 2 audio output tubes-6BL8.

The others are what was used to ad/align to spec?

Once changed, adjustments are off?
kennythekey
593 posts
 
Right, good point. It would be nice to find a local guy to do realignment, so when a tube needs to be replaced, I'm not shipping the tuner off somewhere.

I'm wondering how these comments are adding up for zavato? It seems that no matter what we have, we keep messing with it ($cha-ching-$cha-ching). - LOL

zevato - IMHO, no matter how much you put into a tuner, it's still a tuner. It will never sound as good as a fine turntable or digital source.
Kenny
zavato's avatar
zavato OP
1,405 posts
 
Kenny, you're right, and part of my issue is that in my area I really have only 2 stations that sound good. So I truly question whether the full blown mod is worth the money vs just recapping the damned thing. 
bdp24's avatar
bdp24
9,868 posts
 
Richards MR78 mod includes increasing the tuner's alternate and adjacent channel selectivity, which improves it's ability to pull in closely-spaced channels cleanly.
zavato's avatar
zavato OP
1,405 posts
 
Decided not to go the Audio Classics route. Selectivity is not an issue where I live and and I only have a handful of stations worth grabbing. Given that, I'm doing the recap and alignment and easily saving $600 in the process. That's solid $ to spend on music. 
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