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Preamp output impedance

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Preamp output impedance
Divasson Offline
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#1
20-Jun-2014, 23:37
As some of you, I want to connect my dynamic headphones to the preamp out connectors. (I have sorted out my electrostatics already, but I would not want to use the energizer between the amp and the speakers). I have ordered the adaptor, but would like to know what is the output impedance of the RCA outputs - it does not appear anywhere in the literature.

Does any of you have that information? If it is too high, some headphones will not work properly.
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watchnerd Offline
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#2
23-Aug-2018, 04:11 (This post was last modified: 23-Aug-2018, 04:11 by watchnerd.)
(20-Jun-2014, 23:37)Divasson Wrote: As some of you, I want to connect my dynamic headphones to the preamp out connectors. (I have sorted out my electrostatics already, but I would not want to use the energizer between the amp and the speakers). I have ordered the adaptor, but would like to know what is the output impedance of the RCA outputs - it does not appear anywhere in the literature.

Does any of you have that information? If it is too high, some headphones will not work properly.


I recently asked Devialet Support:

"Dear Devialet,

Can you tell me the output impedance of the pre-out of the Expert 400?

The reason I ask:

I'm driving headphones out of the pre-out jacks of my Expert 400. I want to make sure there is a good impedance match between my headphones and the pre-out."

Here is the reply:

"Thank you for your message.
The output impedance is less than 1 Ohm on expert and expert pro.
If you need to know for the trigger too: trigger out is indeed 12V, with current capability of approx 50mA

I wish you a good day,
Océane | Customer service & support Devialet"
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