On Tue, Jun 08, 2021 at 08:21:20AM -0400, Brandon Hale wrote: > Have you tried plugging in the laptop without the DI in between? I think > laptop outputs are balanced, low-impedance, so you shouldn't need the DI in > between. Even if this is not true, it's at least worth a shot. Don't do this - ever. You could easily destroy your mic input(s) if the laptop power supply isn't as isolated as it should be (quite common), or the laptop's headphone output if there is phantom power on the mic input. Connecting laptops to a PA or recording system can be one of the most frustrating things you may come across as a sound engineer. In particular if the laptop's mains power supply is being used. You need a DI box designed for this task. Those made for guitar etc. usually won't do. Transformer isolation and a 'ground lift' switch are a must. This doesn't mean the DI-box has to be 'passive'. There are a few which have both transformer isolation AND phantom powered active amplification. The one I used when working at the Casa della Musica in Parma was the Radial JPC <https://www.radialeng.com/product/jpc>. It worked perfectly, and I can really recommend it. Not the cheapest at around $200, but worth every penny. Ciao, -- FA _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
