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[AUDITORY] What amplifier should I buy to drive Etymotic ER1 / ER2 insert earphones?

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Subject: [AUDITORY] What amplifier should I buy to drive Etymotic ER1 / ER2 insert earphones?
From: Björn Herrmann <herrmann.b@xxxxxxxxx>
Date: Mon, 19 Feb 2018 15:28:47 -0500
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Reply-to: Björn Herrmann <herrmann.b@xxxxxxxxx>
Sender: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>

Dear list,

I have thus far used headphones for my auditory experiments, but a new
experiment I am setting up requires that I use our Etymotic ER1 / ER2
insert earphones. However, the sounds (played through a Focusrite 2i4
sound card) are not loud enough (limiting the range of intensities
available). I thus would like to buy an amplifier, but also hope for
reasonable costs.
What kind of amplifier would you recommend to drive Etymotic ER1 / ER2
insert earphones?
Thank you in advance for any input you may have.

Bjorn


----------
Björn Herrmann (PhD)

Brain and Mind Institute
The University of Western Ontario
London, Ontario N6A 5B7
Canada

email: herrmann.b@xxxxxxxxx
web: www.bjornherrmann.com

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