# Donald North Audio (DNA)

**URL:** <https://forum.headphones.com/t/donald-north-audio-dna/13070>\
**Category:** DACs and Digital\
**Tags:** headphone-amp\
**Created:** [June 17, 2021, 7:48pm UTC](https://forum.headphones.com/t/donald-north-audio-dna/13070 "2021-06-17T19:48:40Z")\
**Posts on this page:** 1\
**Showing post:** 343

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**Author:** ![Roark](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.headphones.com/roark/32/9724_2.png) [@Roark](https://forum.headphones.com/u/Roark)\
**Post date:** [January 5, 2024, 5:22pm UTC](https://forum.headphones.com/t/donald-north-audio-dna/13070/343 "2024-01-05T17:22:33Z")

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I am going off memory, but the 1/4” output is the preferred with most planers (Susvara type exceptions)when set to low and -6dB for the lowest output impedance, and there is something that keeps the current for planar headphones more consistent. I may be butchering that explanation, but it was said I believe from the man himself, and confirmed by others in another forum.

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