Best USB-C Power Supply and Battery for Sound Devices MixPre-3 & MixPre-6

I recently picked up a Sound Devices MixPre-3 to use for all my audio mixing and recording needs. Whilst I love almost everything about the device, the power options are a bit complicated. You can use the included AA battery sled and 4xAA batteries, but if you want to power it using a mains power supply you have to use the USB-C port. On the face of it, this seems to open up many possibilities, but it turns out that unless you have a very specific USB-C supply, the mixer will operate in low power mode which disables the USB-A …

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