On Mon, Feb 01, 2010 at 09:00:31PM +0100, Jörn Nettingsmeier wrote: > if that means what i think it means (equivalent input noise), and i'm > not totally out of touch with the state of preamp technology, i'd say > all but the 106, the 99 and the ? are bogus. and i'm not even sure about > the 106 :) First of all, all these numbers should have a minus sign in front of them, and for them to be informative at all I'd want to know if they are dBu or dBV. 99 and 106 are *very bad* - how does one design a mic preamp to be that bad ? Use a 714 wired as differential amplifier ? Things start to be interesting around -125 dBV and below. Figures in the below -125 dBV range require either a transformer (big, expensive, heavy) or some quite nifty (again expensive) input circuit design. Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
