| Subject: | Re: Tascam DR680 + 2 Audio Technica AT4022 Omnidirectional Condenser |
|---|---|
| From: | "umashankar" umashanks |
| Date: | Tue Jun 11, 2013 5:15 pm ((PDT)) |
the real issue is the voltage multiplication involved. 5 ma at 48 volts nee= ds 40 ma at 6 volts, even if your convertor is 100 per cent efficient. =A0 umashankar From: Eric Benjamin <> To: Sent: Wednesday, June 12, 2013 2:38 AM Subject: Re: [Nature Recordists] Re: Tascam DR680 + 2 Audio Technica AT4022= Omnidirectional Condensers with Yoga Block for SASS array Microphones that run on phantom power do require more power than PIP microphones.=A0 If, for example, the microphone requires 1 mA, which would = be on the high side for a PIP microphone but on the low side for a phantom powere= d microphone, then the PIP mic would be taking 3 milliWatts and the phantom powered microphone would be taking 48 mW.=A0 Given that a more typical curr= ent consumption for PIP is 0.5 mA and 3-4 mA for phantom powered, then it is no= t at all surprising that using phantom power really sucks down the batteries! Perhaps I should design a very low current phantom powered microphone for portable use. Eric Benjamin |
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