After many months measuring and listening, tweaking, more measuring and listening etc. we proudly present our new custom made Audio Creative O.P.T ‘Gold edition’ for use with our DDDAC 1794 NOS DAC/ BerryStreamer . A further evolution from our first O.P.T. transformer to take the DDDAC 1794 NOS to a next level.
This is by far the best sounding transformer we have listened to and tested on the DDDAC.! Regardless of the price.
This new transformer is not a replacement. It is the bigger brother from our original O.P.T. It has all the fine qualities of the smaller output transformer, the nice flow, the transparency, the great soundstage, but with more pure power. The headroom is extended, the push in the lowest octaves is just mindblowing.
This new output transformer for the DDDAC 1794 NOS DAC is also a low-ohmic 600/600 design and shows little or no sensitivity to connected amplifier loads from 5 kOhm and higher. Both, balanced (XLR) and single ended (cinch) outputs, can be made with the transformer. The sound from the DDDAC 1794 NOS DAC is so much better with an output transformer than with a capacitor, that this is almost a must if you want to get the best sound. And this new ‘Gold’ edition pushes the DDDAC1794 NOS DAC further to new heights!
A schematic how to connect the OPT is added below.
The housing of the O.P.T. Gold is 50 mm high and it has a diameter of 40 mm. With the transformers, 10 mm high spacer bolts are used with the supplied mounting hardware to give the wiring enough space. So that makes the total build height 60 mm.