The Audio Creative O.P.T for DDDAC (1:1) is a custom made transformer. Our new output transformer for the DDDAC 1794 NOS DAC is a low-ohmic 600/600 ohm transformer that shows little or no sensitivity to amplifier loads from 5 kOhm and higher to which it is connected. Both the balanced (XLR) and single ended (cinch) outputs can be made with the transformer. The sound is so much better with the output transformer than with a capacitor, that this is almost a must if you want to get the best out of the DDDAC 1794 NOS DAC. A schematic how to connect the OPT is added below.
Frederik P. –
I am satisfied that I made the change.
The Cinimag 600/600 were good but the Audio Creative transformers are better suited.
David Portael –