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Re: [AUDITORY] Advise on coupling pre-amp to insert earphones

Hello Liam,

my advice would be to rely on the on-board headphone amplifier of the RME FireFace 400...the ER-3C are rather "easy" to drive, and the RME headphone amps are excellent. I don't remember specifically the FireFace 400 model, but I believe it has a digitally controlled headphone level, so that you can calibrate that and get repeatable results.


Dr Lorenzo Picinali
Reader in Audio Experience Design
Dyson School of Design Engineering
Imperial College London
Dyson Building
Imperial College Road
South Kensington, SW7 2DB, London
E: l.picinali@xxxxxxxxxxxxxx



From: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx> on behalf of Barrett, Liam <l.barrett.16@xxxxxxxxx>
Sent: 20 January 2023 12:19
To: AUDITORY@xxxxxxxxxxxxxxx <AUDITORY@xxxxxxxxxxxxxxx>
Subject: [AUDITORY] Advise on coupling pre-amp to insert earphones

Dear Auditory List,


I will be adding a set of etymotic ER-3C insert earphones (50 Ohm) to my EEG set-up. I am currently considering how best to link these up to my HiFi system. Specifically what spec pre-amp I should find to couple the earphones with. I am intending on presenting both computer-generated signals as well as using a microphone for online auditory feedback. I have a RME FireFace 400 audio interface between the computer, microphone and the headphones. I am looking for a pre-amp that will generate excellent SNR. Any suggestions or advise on setting up this interface would be greatly appreciated.