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Hugh RobjohnsAdministrator
SOS Technical Editor


Reged: 25/07/03
Posts: 18526
Loc: Worcestershire
Re: Neumann too hot for AKAI?
      23/04/12 03:54 PM
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Quote jonathan2008:

The phantom power measures 51.4v at the unit and 51.v3 at the mic (inputs 1&2) and 50.4v at both the unit and the mic (inputs 3&4).



This is slightly high but well within tolerances. There shouldn't be able voltage drop across a short-ish cable -- if there is it suggests the cable has significant resitance which isn't a good thing!

The phantom voltage at thge mic will be lower when a load (mic) is connected because the current flow through the output resistors with generate a voltage loss. It should be between about 32 and 38V for the Rode and Neumann, respectively.

Quote:

Might the voltage from the AKAI be too high for the mic?



No, the phantom spec is 48 +/-4V -- meaning 44-52V is the tolerance range and your system is easily within that.

Your current measurement (presumably shorting between pins 2/3 and 1) of 7mA indicates a healthy supply too.

Hugh

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Subject Posted by Posted on
* Neumann too hot for AKAI? jonathan2008 21/04/12 02:27 PM
. * Re: Neumann too hot for AKAI? jonathan2008   10/05/12 07:53 PM
. * Re: Neumann too hot for AKAI? Jeraldo   12/05/12 12:25 AM
. * Re: Neumann too hot for AKAI? Hugh RobjohnsAdministrator   23/04/12 03:46 PM
. * Re: Neumann too hot for AKAI? Jeraldo   21/04/12 05:40 PM
. * Re: Neumann too hot for AKAI? jonathan2008   22/04/12 01:50 PM
. * Re: Neumann too hot for AKAI? Hugh RobjohnsAdministrator   23/04/12 03:54 PM
. * Re: Neumann too hot for AKAI? jonathan2008   24/04/12 01:17 PM
. * Re: Neumann too hot for AKAI? Jeraldo   23/04/12 02:36 PM
. * Re: Neumann too hot for AKAI? jonathan2008   23/04/12 03:37 PM

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