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Post by Quint on Jul 6, 2021 11:52:13 GMT -6
Quint, I think it's great that you're happy with your outboard phantom supply, and hope that it gives you peace-of-mind. You're making some assumptions that I want to address to prevent unnecessary concern by others: - " I'd still rather have 14mA on tap than just barely enough at 10mA": Understood. But, very, very few mics need a full 10mA, and most are way below that. So, not only is there plenty of power for most mics, there's also headroom to spare. Here's a list of some mics and their current requirements: www.sounddevices.com/phantom-powering-basics. Unless someone is using Earthworks, he's probably not pushing the limits. - " Assuming that your phantom supply is even giving you 10mA": I'm highly suspicious that any modern, pro-level interfaces aren't providing the full 10mA, simultaneously, on each channel. I know for a fact that my ULN8s can. - " As it related to the original discussion...10mA might cut it for a mic, but I could see certain power hungry DIs requiring more": Maybe, if they don't adhere to the AES spec. As it relates to the original discussion, The RNDI uses 4.5mA : rupertneve.com/products/rndi#resources. Take it however you like, but I'm not the only one in this thread who finds the quality/amount of phantom power coming from the power supplies built into some preamps/interfaces to be a little dubious. Not assumptions. Just real world use. As an example, there are two manufacturers in this thread alone talking about how much they over spec their phantom supplies (Pueblo at 1,500 mA and LTL at 100 mA). That's not for nothing. But to each their own.
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Post by plinker on Jul 6, 2021 12:12:35 GMT -6
Take it however you like, but not a single person on this thread has mentioned a modern, pro-level preamp that can't supply the correct power.
But to each their own.
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Post by Quint on Jul 6, 2021 12:33:40 GMT -6
Take it however you like, but not a single person on this thread has mentioned a modern, pro-level preamp that can't supply the correct power. But to each their own. Who said we were talking exclusively about "modern, pro-level" preamps? And, yes, there are two manufacturers in this thread who have mentioned their products in reference to supplying current well beyond the "standard", be that 10 mA, 14 mA, or whatever. In any case, if you disagree, take it up with Pueblo Audio or Brad from LTL, among others. I'm sure they'd be happy to educate you on the finer points of power supply.
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