Class D high power module recommendations

[slimecity]

Hi all -

I have a fairly grunty potted trafo that puts out 50VAC, Im guessing its around 400VA. That will give me about 70VDC once rectified.

I'd like to use it as the core for a new class D amplifier. Yes, I may need to step this voltage down for the right application. I want to spend the money on the PS, MUR diode bridges and Gold Tune caps.

Any recommendations? Im keen on keeping budget reasonable, and am thinking of going down the road of TPA3255, Im aiming for about 300W p/c but am quite cagey on the fairly high THD specs for many of these modules.

Suggestions welcomed. Cheers!

 

[chienmort]

Is that a single winding in the Transformer? If we assume that it is, it is too much for a TPA3255. Maybe an ICEPower A500?

 

[OldDIY]

A feature of class d is a large current consumption at a relatively low voltage from a source with a stable voltage (10A or more). This is an expensive linear power supply with low efficiency. Therefore, it is recommended to use SMPS.