Questions & Answers

What's the polarity for the discontinued TubePre?

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asked Oct 26, 2020 in PreAmps, Signal Processors and Monitoring Hardware by johnvarney (120 points)
I lost the power supply for my Presonus Tube Pre that I bought used some time ago on Reverb. I'm going to have a power supply specially made for it - does its polarity face the negative or positive? Couldn't find any spec for that on the legacy webpage.

1 Answer

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answered Feb 26, 2022 by gbgraham (140 points)
It's AC current so there's no polarity.  It doesn't matter which wire goes to center or barrel.
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