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Old 23rd January 2006, 11:51 PM
NickW NickW is offline
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Join Date: Dec 2005
Location: west Berkshire
Posts: 97
Default 2 Headphone sockets on an HD83?

All,

Wonder if you can help on how one might fit two headphone sockets on a WAD HD83 or Headphone-II? This idea has arisen as a "nice to have" in an exchange with Black Stuart on upgrades to the WAD Headphone amp.

The question is really how to wire the output transformers? I have HD650 phones at 300 ohms impedance, and have thus wired the output transformers accordingly for the highest output impedance configuration. However, if I were to fit a second set of HD650 phones in parallel, what would that do to the load impedance and thus the output transformer/phone matching?

Why? - I bought my lovely wife a pair of HD650s of her very own when I convinced her that my very old HD565s needed replacing.....and it would be great to share the same souce at times.

Can anyone help?

Many thanks, NickW
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