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Re: H4 recorder in the field

Subject: Re: H4 recorder in the field
From: "Rob Danielson" danielson_rob
Date: Fri Nov 10, 2006 7:59 am ((PST))
At 7:34 AM -0500 11/10/06, Marc Myers wrote:
>.........A post on the DV list reported the phantom unit falls considerabl=
>short of 48 volts. This wouldn't affect all phantom-powered mics
>negatively, but some would be.......
>I believe this problem is with the Microtrack, not any of the
>devices discussed.

Thank you Mark. My apologies for the "true voltage" misread. There
are a good number of comments from users on the Tapers Section list. Like Robin, most are
regarding the H4 higher than the R-09 and the Microtrack. There are
mentions of use with AT U873R  and Neumann KM184 mics with 3ma amd
Message: 3.
Subject: 2 ma of current use respectively--  a bit more than what the MKH-30
and MKH-60 require.  Neumann states the KM184  requires +/- 4V 48
volts so these are positive indications.  Phantom powering has
presented a significant miniaturization/DC supply voltage engineering
challenge based on Len Moskowitz's observations and some on this and
the micbuilders list. It still could be premature to assume the
circuit is as clean and stable as nature recordists would require or
what a Rolls or other proven outboard units can provide.  I do hope
the H4's performance proves worthy of the positive comments it has
enjoyed in its first few weeks, in all camps. Rob D.

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