From: "digidandy" <>
>
>
> --- In Jeremiah Moore <>
> wrote:
>
>
>>> I tried the 183s with the Sony PCM-M1 and they were also very
>>> low-headroom, distoring with slightly elevated speaking voice, mics
>>> mounted on my head. I measured the P-I-P voltages as follows:
>>>
>>> Sony PCM-M1, loaded w/ 183s: 1.49v
>>> Sony PCM-M1, unloaded: 2.01v
>>> Sony MZ-R37, loaded w/ 183s: 1.83v
>>> Sony MZ-R37, unloaded: 2.44v
>
>
> So, in other words I would have to find out the output voltage of my
> Sharp IM-DR580 before making any final decicions to go for the WL183s,
> I guess.
The voltage that's going to count is the voltage loaded with the mic
while it's picking up the sounds you want to record. Unloaded voltage
does not count at all. Pip is not a very robust power supply and varies
according to load. I'd not even trust the mic load in a quiet room to
tell you if it's close to Shure's lower cutoff of 1.5 volts. The mic's
specs indicate it's designed for a 5 volt supply. And probably that's
expected to hold under load.
Walt
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