Arny Krueger wrote:

"TonyP" wrote in message
u
"Pooh Bear" wrote in message
...
TonyP wrote:


I doubt very much that the EP2500 uses a smaller one. However if
you expect to get 2400W RMS continuous from one of these amps, you
will be disappointed.

Says who ?

In the short term at least - transformers such as these can deliver
much more than their continuous VA rating would indicate.


That's why I said "RMS **CONTINUOUS**".
Having trouble reading?

There is *continuous* and there is **continuous**. Temperatures in bit power
transformers build up slowly - in minutes and hours. AFAIK, the longest term
standard test of power output is limited to 30 minutes. I've seen
transformers do 30 minutes no sweat, but fail due to thermal stress several
hours later.

Yup, seen that one too. 'Heat soak' is the culprit I think.

Using 'oversize' copper for the windings to keep down I^2*R heating helps a
*lot*.


Graham