That is exactly the purpose of the output transformer. To drop the output impedance normally of high impedance tubes to an impedance low enough to drive loudspeakers. SS outputs have low impedance to begin with and do not normally need a transformer. Mac uses the transformer to isolate it's output section from the load which I believe they feel enhances stability which enhances sound. They certainly do have a signature sound and it is not bad it is just not the most detailed, dynamic sound out there.
McIntosh autoformers vs direct-coupled output
Hi Out there! I'm just getting back into audio after a 40 year hiatus. An old "Tube" guy (McIntosh, Marantz, etc)
who didn't much care for the perceived change in sound with the intro of S.S. about 1970.
I happen to like certain features of McIntosh stuff. I'm also of the opinion that older, high grade items, brought
back to specs with judicious restoration, are more than adequate sonically, and a bargain against new.
All that said: I'd greatly appreciate feedback on the issue of McIntosh's Autoformer Amps vs direct-coupled.
Seems there's a serious division of opinion, and I'd like to hear yours!
Thanks for any/all input!
Bo
who didn't much care for the perceived change in sound with the intro of S.S. about 1970.
I happen to like certain features of McIntosh stuff. I'm also of the opinion that older, high grade items, brought
back to specs with judicious restoration, are more than adequate sonically, and a bargain against new.
All that said: I'd greatly appreciate feedback on the issue of McIntosh's Autoformer Amps vs direct-coupled.
Seems there's a serious division of opinion, and I'd like to hear yours!
Thanks for any/all input!
Bo
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- 37 posts total
- 37 posts total