the response on the DPA 406x line?
Bruce from DPA sent me this info the other day -
"The typical range of voltage we recommend is between 4.5V and 9V with
the spec set at 6V. No caution needs to be taken at these levels.
No significant change in specs occurs when varying the voltage. Voltages
below 4.5V are insufficient to power the mic.
However:
It is more about amperage than voltage.
DPA minimic's are actually designed to handle a maximum current
of 7 mA. The incorporated 6.8 kOhm resistors on a standard
P48 V systems limits the current draw to exactly 7 mA.
When calculating the correct series resistor to be utilized with
a minimic, we always consider 1 mA as the normal current draw
in order to supply the mic. satisfactorily. You'll NOT gain any
better performance from the mic. by raising the current up to the
maximum of 7 mA."
Since the Microtrack puts out 4.5v (instead of the advertised 5v) on it's mic input, I'm a little worried that the voltage will dip below 4.5v after an hour or two of usage. I'm talking about using something like the dongle that "Freelunch" made (see Rig Pictures section). I need to run some tests to make sure it doesn't go below 4.5v at any point.
Later,
pjdavep
