Propower Posted December 4, 2018 Share Posted December 4, 2018 I want to power a 9V internal guitar mic using the phantom power on the Helix. The draw from the mic is ~2mA. I can add something like a 2K resistor in parallel with the mic to ground to get the 48V to be ~9V at the Mic. I will also put a matching resistor to GND in the - leg of the XLR since the guitar mic is a single ended device. Complete schematic is 2K in series with + lead to Mic, - side of Mic to GND (pin 1 XLR) 2k in series with - lead to GND So this puts ~6mA on the internal 6.8k (I believe) resistor in the helix. That is ~ 1/4W - more than a Condensor Mic would normally load on the internal part. SO... the question is - what is the current rating for the HELIX phantom power? Anyone know - Anyone at Line6 want to chime in? Thanks Quote Link to comment Share on other sites More sharing options...
zolko60 Posted December 5, 2018 Share Posted December 5, 2018 I would take a support ticket for that, but I recall adapter from 48V Phantom to 6V battery powered mic made of Zener diode and two resisors or little more complex P48 to T power ed (12V) mics also Zener based. Hope that helps. Quote Link to comment Share on other sites More sharing options...
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