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18v to 48v Phantom mod


JonG

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I recently acquired a Whirlwind MD1, which is essentially what a Sound Devices MM-1 is, with some differences of course. It features a Mic/Line input, Line out, and Headphone out, and is powered by two 9V batteries. Curiously, it has 18V Phantom power, which is a bit confusing for me, because this would greatly limit the usage one could have for the device, since most mics that need phantom power are designed not necessarily to need a full 48V, but to have some headroom.

Is there a way to mod this device to provide a "normal" 48V Phantom Power? I hear many people say that the 9V system wouldnt work for a full 48V, but I am reminded that the Denecke Phantom Power device runs off of one 9V battery, and the Sound Devices MM-1 runs off of two AA batteries, so it must be possible. I am no EE but this seems to be a reasonable assumption.

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