Reddit reviews SM Pro Audio M-Patch 2 Passive Volume Control/Switch Box
We found 3 Reddit comments about SM Pro Audio M-Patch 2 Passive Volume Control/Switch Box. Here are the top ones, ranked by their Reddit score.
Passive volume attenuation control Independent Main & Aux controls A/B multiple outputs.
>JBL Nano Patch as DAC
This is not a DAC, it is a passive volume control only.
The DDJ-400 already has a USB DAC built in. If you want to use another USB interface and switch audio devices under your OS, then get a monitor controller.
PASSIVES (with 2 switchable inputs)
ACTIVES (some have a USB interfaces too):
If you decide to purchase one rather than build it, I'd suggest the SM Pro Audio M-Patch 2. It's more versatile than the Nanopatch with 2 inputs, 2 outputs, Headphone out, and mono/stereo switch. And it's passive so it wouldn't color your sound.
your alesis m1 actives should also have normal inputs.
you'll need something like this
http://www.amazon.com/SM-Pro-Audio-M-Patch-Passive/dp/B00113LUTA/ref=sr_1_1?ie=UTF8&qid=1375754966&sr=8-1&keywords=SM+Pro+Audio+M-Patch+2
connect your scarlett 2i2 and both speakerpairs to the controller so you can switch between them