Re: Questions on Etymotic ER-30 insert earphones (John Culling )

Subject: Re: Questions on Etymotic ER-30 insert earphones
From:    John Culling  <cullingj@xxxxxxxx>
Date:    Wed, 1 Feb 2006 17:48:59 +0000

We have looked into the ER-30s. There are two things about the ER-30 
that make them seem a bit unattractive. One is that they seem to have
a poor frequency response with a steep low-pass characteristic. The
other is that they appear to simply be ER-3s with very long tubes
attached and an MRI-compatible price tag. If this is the case, then one
is being expected to pay several hundred dollars for the tubes.

John.