Speaker leads.. Which is pos?

I accidentally pulled the speaker wires from my marshall combo and did not see which one was pos and which was negative...One is red, one is white. anyone know which is which?

Also, when connecting, pos to neg and such right?

Doesn

thank you!

why doesnt it matter?

I am trying to connect a male speaker lead so I can plugit into an external cab. Any advice?

You just need to be consistent with your own wiring. Wiring for a single speaker doesn't matter because our ears can't determine absolute phase - but they can determine relative phase so two or more speakers need to be wired consistently.

In your case, using a jack for the external speaker - just make sure you wire the internal speaker positive to the external jack tip, and the internal negative to the external ring/sleeve.

Amp sends signal into the coil, and that makes a magnet vibrate, causing vibrations in the baffle, or at least that

I have them temporarily connected with electrical tape..Pos to Pos.. but there is humming. Any ideas?

A speaker cable shouldn't pick up hum, but try restore to original condition (i.e. wire the original speaker) and see if it goes away. I expect it's something else though.

hmmm okie dokie

hmmm okie dokie

mayeb the hum is related to the power in the house... or proximity to my comp. when I had the amp in ints original state, in our practice spot there was no hum at all.

hrrrm

Move the amp to a location away from flourescent lights, computers, girlfriends (oops, different type of hum job) & see if the hum stops. Use wire nuts temporarily & make sure nothing is touching something it shouldn't. If the hum goes away, all is good. If not you may have caused something else to fry. Did you power up the amp with no speaker? Tube or SS combo?

99% of the speakers have a marking at least for the plus side. Sometimes theres a red dot, sometimes the + is stamped on the solder terminal. Most of the time with with the speaker terminals at the bottom the right one will be positive but theres no steadfast rule on that one. What I do is connect a low voltage aa or 9v battery to the speaker and see if they pull in or push out especially on a 4 speaker rig. I want to be sure all the cones are pushing in the same direction. Having the connection right is more important when it comes to recording of micing an amp. The sound to your ear may not be different but when it comes to recording, a speaker out of phase can dissapear from a mix or sound thin when recorded in conjunction with other mics especially if that mix is mono. So getting the polarity is best gotten before resealing the cab.

If you want I can test one of my cabs to see if the speakers move in or out thith the positive lead connected to the positive speaker connection if that will help, but look for a red dot for hot, it should be there someplace unless its an el cheezo speaker. In that case a battery test may be wisest way to go.

Are you trying to determine which wire is + from the amp? If so you may have to pull the chassis out & follow wires to the source. The battery trick WRG describes is good for checking speakers & I'll always do it to make sure nobody dumbassed before I got the speaker. And the "pop" it makes is cool. No pop=bad speaker. Or contact Marshall & get the colors from them.

As others have said, as long as you wire every speaker the same it does not matter. If you only have one speaker then it does not matter.

But there is an industry standard. "positive" should cause the speaker cone to move forward. You can test using a 9 volt battery. When the battery is connect positive to positive the voice coil should move outward.