I recently picked up a diy zen amplifier that is missing it's power transformer. I have an amp with a EI transformer I hooked up to test the amp but I don't feel like cannibalizing one amp to make this one complete. Now I am a crossroads. Do I buy a transformer and just complete the amp or for about the same money do I try a resonant SMPS like the one here or reviewed here. Has anyone done a good write up comparing the same amp circuit on a linear and SMPS PS? Considering that a later modification to the zen amplifier series is a regulated PS, I would think the SMPS would be a great way to go. Does anyone else have an opinion on this?
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