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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: BruPri on December 27, 2007, 01:58:51 PM
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Anybody here using a US-122L as a stand alone mic pre? How would one adapt a battery pack for the USB input jack? Thanks in advance :)
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Ok, I guess nobody uses one of these or the question is too obtuse. I discovered my IPOD AC adaptor powers the USB in on the 122 nicely. One question if anybody is reading this...how can a device such as this that uses USB 5v/500Ma power, provide phantom power for condensers? Do they step up the voltage or is it just passing the 5 volts to the mic and it works because 5v is enough for some condensers. Anyone? Mics used successfully, a pair of CAD 1200, and a pair of M-Audio Lunas.
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Ok, I guess nobody uses one of these or the question is too obtuse. I discovered my IPOD AC adaptor powers the USB in on the 122 nicely. One question if anybody is reading this...how can a device such as this that uses USB 5v/500Ma power, provide phantom power for condensers? Do they step up the voltage or is it just passing the 5 volts to the mic and it works because 5v is enough for some condensers. Anyone? Mics used successfully, a pair of CAD 1200, and a pair of M-Audio Lunas.
this preamp "ramps up" the voltage the same way others do.
This USB interface may or may not work standalone. Try it out though.
Some usb devices have to be connected to a computer to route the signal to the outputs or modified with a jumper. I never tried it since it would be a bear to run in the field with the big knobs on top,only used it with my laptop. Worked well enough. Just sold it on ebay for 70 bucks.