# DS vs DS Mk2?

**URL:** <https://forum.psaudio.com/t/ds-vs-ds-mk2/31502>\
**Category:** DACs\
**Created:** [December 17, 2022, 4:36pm UTC](https://forum.psaudio.com/t/ds-vs-ds-mk2/31502 "2022-12-17T16:36:20Z")\
**Posts on this page:** 1\
**Showing post:** 270

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**Author:** ![jkrichards](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.psaudio.com/jkrichards/32/191511_2.png) [@jkrichards](https://forum.psaudio.com/u/jkrichards)\
**Post date:** [January 13, 2023, 7:26am UTC](https://forum.psaudio.com/t/ds-vs-ds-mk2/31502/270 "2023-01-13T07:26:55Z")

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We posted transformer sweeps of all transformers used in both the DS and the MKII in the Modding the DS topic.

> [@Modding the DirectStream DAC MKI](https://forum.psaudio.com/t/modding-the-directstream-dac/2680/4927):
>
> Transformer sweeps as promised. See notes at the bottom of each sweep. With and without C704. Edcor 150-150 (Stock) Edcor XS4400 Both 1:1 and 1:2 modes were tested (see plot titles). Note the fairly significant phase shift and attenuation at 20k (-.6dB) (even without the 15nF capacitor) when wired in 1:2 mode. (MKII) Here are the sweeps for the…

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