Re: Estimating transformer quality by size



What would be a healthy volume ratio for EI transformers, and how much would this change with toroids, C-cores, etc?

So many ready built amplifiers, particularly from the Orient, appear to me to have very small OPTs.

Depends partly on how much bass you'd want.  Say 2 transformers that can
do 100W of 500Hz.  But one won't handle 100W of 50Hz, because it's
smaller than the other.
.