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Re: Olympus LS-14 initial thoughts

Subject: Re: Olympus LS-14 initial thoughts
From: "Raimund" animalsounds
Date: Sat Jan 5, 2013 2:11 pm ((PST))
> Do you have any references on transformer-based mic preamps that provide =
an EIN better than -130 dBu(A) at 150 ohm termination (this is what can be =
accomplished today with transformer-less designs)?

I just found the specifications of the discontinued transformer-based SQN-4=
S mixer:

http://www.sqn.co.uk/old/n4s/SQN4S.html#spec

"Noise Figure -130dBu (A weighted) from a 200 Ohm source"

This is exactly the same noise specification as in the new transformer-less=
 model SQN-5S:

http://www.sqn.co.uk/5Sspec.html

Regards,
Raimund







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