MB Quart PCE 164 issue

[rak_24540 0]

I'm trying to install them but the post are not marked which is positive and negative, how can you tell which is which?

[KU40 173]

Just guess. If you really want to set them up right to sound the best you'll want to play with phase anyways, i.e.- try switching + and - on each speaker one at a time to see if it sounds better.

[loudcav 1]

you could also grab a 9 volt battery and if the speaker pushes forward the post that the + of the battery is on is the + post of the speaker if it pulls inward what ever post the + is on is the speaker negative

[rak_24540 0]

Used a 1.5v , I guessed right on 1 speaker , wrong on the other. Now both push out. Thanks for the help.