RE: Re: M-Audio MicroTrack 24/96 power

[Dan Dugan <>]

Allen Cobb wrote:

>The
>Edirol R-1 shuts off after about 1hr of recording when powered
>externally by 2 fresh D cells! This is half the record-time with
>2 internal AAs.

There's likely a diode in series with the external power input to
protect against polarity reversal. That drops the input voltage 0.7V
before it goes anywhere. With a wall-wart, that doesn't matter. With
a 3V battery, it's significant!

-Dan Dugan


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