Greetings,

I've had these old speakers forever. I think they are Altec Lansing Flamencos and that the horn is an 811(18") and the speaker 416Z(?). I received them from my step dad 40 years ago. The cloth has been missing for decades and they are a bit are old and rough looking. That said they sound AWESOME!

http://www.sitnsail.com/hairfarm/Alt...ers/index.html

Over the last few years the audio from one of them (on the right side) is beginning to cut out more often. Especially when I first power up the Onkyo amplifier to play them and it also at happens at low volume. If I crank up the volume loud then the audio will sometimes cut back in. Sometimes I have to whack it (like Fonzie on Happy Days) on the side of the cabinet to get it to play again. I took it apart hoping to see a loose wire that I could solder but everything looks OK. So I'm going to replace the speaker wire but there is no + or - identified on the rear.

There are two wires going into the potentiometer(?) An orange one and a brown one. Can someone please look at the following photo and tell me which color (orange or brown) is the positive and negative? How do I measure positive and negative? I want to make sure to hook up my speaker wire in correct polarity.
http://www.sitnsail.com/hairfarm/Alt...49%20copy.html

Is there a place I can send my two potentiometers to for rebuild/repair. What would cause the audio to occasionally cut out yet fixed by hitting the speaker cabinet with my fist? The cutting out of audio is getting really annoying while trying listen to music and my hand is getting sore.

Thanks!

Hairfarmer