Headphone Heights

RE: Disagree, for the most part...

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genungo

A

In Reply to: RE: Disagree, for the most part... posted by Caucasian Blackplate on December 28, 2013 at 11:18:16

The amp in question (DNA Sonett) is a zero feedback design so I would assume that true, dual output impedance switching is one of it's features. So, for now, I will continue to assume that a low(er) output impedance setting (below 120 ohm "IEC standard") is better when a headphone amp is used as a "preamp" - at least in some cases. Thanks for the input.

Edits: 12/29/13

Follow Ups:

RE: Disagree, for the most part... - Caucasian Blackplate 12:48:38 12/29/13 (0)
This is an additional interesting observation. When you switch the impedance setting on that amp from high to low, you are actually using less of the output transformer secondary (less copper), and increasing the step-down ratio.

I have a similar headphone amp in my armada with the same brand of output transformers, and I have actually made observations similar to yours - that I tend to prefer that the amp is set on the lowest impedance setting regardless of what I'm driving.

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