@ nyev
See page #17. It appears the power transformer is an EI type. EI type power transformers as a rule are not affected by DC offset on the AC mains
https://www.manualslib.com/manual/1460643/Mcintosh-Mc462.html?page=17#manual
Question is why would you still want to buy a McIntosh product after hearing the way they have treated the OP? Ron ( McIntosh representative) said maybe 5 complaints a year about torid buzzing power transformers. You want to beat the number of complaints is actually higher than 5?
How much would it have cost for McIntosh to incorporated a DC blocker in the MC8207 amp? I would be willing to bet the design engineer first designed the amp with a DC blocker. No doubt the design engineer new that a large torid power transformer would vibrate/buzz if there was DC offset on a customer’s AC mains.
How much you think them pretty covers cost that cover the transformer and DC power supply inside the MC8207? Or them big pretty blue front meters?
They sure look pretty though don’t they?
Charlie Randall (top USA dog now) is already starting to make ARC equipment look like McIntosh.
.
See page #17. It appears the power transformer is an EI type. EI type power transformers as a rule are not affected by DC offset on the AC mains
https://www.manualslib.com/manual/1460643/Mcintosh-Mc462.html?page=17#manual
Question is why would you still want to buy a McIntosh product after hearing the way they have treated the OP? Ron ( McIntosh representative) said maybe 5 complaints a year about torid buzzing power transformers. You want to beat the number of complaints is actually higher than 5?
How much would it have cost for McIntosh to incorporated a DC blocker in the MC8207 amp? I would be willing to bet the design engineer first designed the amp with a DC blocker. No doubt the design engineer new that a large torid power transformer would vibrate/buzz if there was DC offset on a customer’s AC mains.
How much you think them pretty covers cost that cover the transformer and DC power supply inside the MC8207? Or them big pretty blue front meters?
They sure look pretty though don’t they?
Charlie Randall (top USA dog now) is already starting to make ARC equipment look like McIntosh.
.