A question for technically astute

Hmmmm.Could it be the step transformer is feeding the amp a very clean, very constant 110? In other words, it is, by default, acting as a (seemingly successful) power line conditioner?

I don't think you can make any meaningful comparisons between 2 amps with different tubes played through 2 different speakers and going from memory on the sound of the first set up.

Thanks for the response..the step up transformer is boosting the voltage to 220 so I guess it could be producing a cleaner 220. As to my memory of the prior amp. It had the exact same tube complement. The only difference is the first was a 110 and this one is 220. Your right it is difficult to draw a comparison, but the difference particularly in bass slam seems noticeable for whatever reason. I wonder if the 220 produced by the step up transformer is giving the amp better juice to draw on? Does that sound reasonable?

Hi Larry. Yes, it could be your step up transformer. When using a transformer, you need to over spec the transformer otherwise it will effect the sound in ways you mention. While this may be totally overkill, I wouldn't consider using one unless its capacity is 9 to 10 times that required by the amplifier. When over spec like that, they do not restrict the amp and serve to reduce the noise on the power lines.

You could could try a larger capacity xformer and see if it sound better or you could contact the vendor and see if the amplifier power transformer could be wired to 110v. I suggest you do the latter. Many amplifier transformers have multiple wiring options to accept 100, 115 and 220 volts.

Regards
Paul

Hi Paul...I am really happy with the sound right now..I think it sounds better than the 110 version..I was just trying to find out if that's possible and why.