Low Cost AC Regenerator

This is not a regenerator. It is a voltage regulator. Now whether it creates quality power is up to the design of the components but that isn’t it’s primary function. It is designed to handle transients and protect a wide variety of equipment. I won’t say that it is impossible that this makes good power to run an audio system but I would say it is unlikely.

A regenerator made with audio is mind is your best bet.

Jerry

It would surprise me very much if any component is manufactured that is damaged by 240 V.  240V is standard here in the US (along with 120V).  My voltages runs as high as 124V/248V and nobody complains of damaged equipment.

Here in the US we used to call outlet power "110 V" and saw some components marked 115V.  I think these numbers were conservative, more like a minimum voltage, since many items are more likely to be damaged by undervoltage. 

So does your transformer sound good?  An oversized transformer can be a good thing to power an amp from.  So it may not be a waste of money (as it seem syou suspect).

Jerry

Heat kills electronics.  20 deg cooler is no joke.

But I'd say the CJ should be designed to handle normal voltage.  that said, you're doing the right thing.

I'd do some A/B testing to confirm your transformer is not limiting dynamics or bass and then be happy.

Jerry

I noticed that site down too.  I was going to send it to a friend who needs a voltage regulator and ask one of my electrical engineers to commen5 on the design of it.