I have the boss mt2 metal zone pedal and i jsut got it like 2 weeks ago off amazon. after the battery that it came with ran out, i tried another one and that didnt seem to work. I tried it with a dc adapter and it didnt work but on the pedal it says only to use a boss psa adapter. But since it didnt work with the enew battery or the adapter, is it broken?
The Metalzone takes an 9v AC adaptor not a DC adaptor.
Because you used it with an DC adapter, there is the chance you may have damaged it. Any 9volt AC however should work fine.