Zen-like balanced output stage for voltage DAC

I prefer bifilar wound output transformers like the Jensens, but the Lundahl trafos are fine also. The Lundahls are constructed primarily with input duty in mind, but are fine if the self resonance and proper loading are dealt with.

For a great insight into trafos, go to the Jensen transformer website and read Bill Whitlock's article on audio transformers. It is loaded with useful info.