5 Jr's Blown Tweeter?

sbolt

First, thanks for all the info on this board, it has been extremely helpful.

I just received a pair of 5 Jr's made in 1987 according to the date on the back of the drivers. These speakers have the SL-2000 tweeters I believe as the visible leads on the plate are parallel to the floor.

One of these tweeters has lower output than the other, but it is still working, but not overly scratchy or anything. I swapped the speaker from left to right and sure enough it's the speaker, not the amp.

Would the lower output dictate the need for a tweeter replacement or should I wait until after I refurb the crossovers (as planned) before judgement?

thanks!

Big Dawg

Absolutely wait until after you refurb the crossovers, since I suspect that what you've got is a dying polyswitch. Switch only the tweeters and I think you'll see what I mean. Might want to consider upgrading the tweeters anyway, though.

Oh, and welcome to Club Polk.

george daniel

did you swap the tweeters?

sbolt

Thanks for the quick responses.

I have not swapped the tweeters yet, but I will try that next

The polyswitch is the small, blue, flat rectangular thing measuring about
5 x 8 mm right alongside the capacitor correct?

george daniel

yep,, if it is the culprit,you can just remove it and replace with another,or a jumper,or a .5 ohm resistor,,if you opt to replace it with a jumper or a resistor,just be careful with the volume,good luck,let us know what happens.
You may first want to rule out the tweeter as the suspect.

sbolt

It's the tweeter. I swapped them around and it's definitely the tweeter. Looks like I'll be making a list.