Dave Fawthrop wrote:
On 5 Dec 2006 13:38:53 -0800, "dave sanderson"
wrote:

|bodger wrote:
| Not quite DIY but here goes.I have found an ancient pair of Wharfedale
| bookshelf speakers in the depths of the garage and would like to wire
| them up to my separates system to use in another room.There are the
| remains of two wires on the terminals,one is grey the other is grey
| with a black trace.Can anyone tell me which is positive and negative
| please.
|
|
|It generally doesnt matter, as long as they are wired the same.
|Id put the stripe to +ve, but its personal preference

It matters if you are using stereo. If a speaker is wired the wrong way
round it produces sound 180 degrees out of phase. Not that I could hear
the difference.

Que? if one is wired one way, and the other the other way they will be
180 deg out of phase with each other, and the result will be a loss of
low frequencies (very technical explaination skipped, bu I can post it
if you want), but both wired backwards makes no odds on most speakers.
If they are using a fancy crossover it *might* make a *slight*
difference, but since most book shelf speakers use a straight parallel
the tweater with a capacitor to roll off the low frequencies thats
unlikely. Given they have been sat in a garage id be more worried about
damage to the cones and coils producing crappy sounds.

Dave