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+--- Thread: Preamp output impedance (/Thread-Preamp-output-impedance)
Preamp output impedance - Divasson - 20-Jun-2014
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.
RE: Preamp output impedance - watchnerd - 23-Aug-2018
(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"