One of the things that SIM 3 can do (using branches) is select the desired mic when you change to a different branch. For those of us who don’t have SIM 3 or if you do, don’t have the Meyer Sound mic selector, Radial Engineering’s Gold Digger mic selector may be a welcome addition to your rig.

Radial Engineering – Gold Digger

YOUTUBE – Gold Digger explained

Other than 48v phantom power and some relays there is no other circuitry. 4 mics in / 1 output. You can only select one of the 4 mics at a time so no concern of having more than one mic active. Since phantom power is provided, there is no loud explosive sounds coming from the mics when you switch. If you have Smaart 7, you can have more than one active live trace which is arguably better than having to view the results from one mic at a time but I can still see how being able to switch between mics may speed up the measurement process. If you have a 2 in / 2 out interface like the popular Sound Devices USB Pre 2, the Gold Digger mic switcher is a no brainer.