19Delta
Well-Known Member
- Thread starter
- #31
I tried to find an app (Google play store / Android) and can't find one that has reviews saying it works. Do you have a recommendation?You can order a tester off amazon for fairly cheap or download a app off your phone, then just play the test tracks and hold the device next to the speaker. It will tell you if its positive or negative and just make sure they all match one way or the other.
Sponsored