Testing if a speaker is busted

Refefer

Alright, my left lsi is the culprit here. It sounds worst than the right, uncontrolled bass to the sound.

I ran a multimeter through it and it's lower than my right one.

I'm trying to remove the driver to take a look at the cross over, however after unscrewing the 6 screws, the driver is stuck tight. Any advice?

Midnite Mick

I have had on and off issues with my left lsi as well. I will be listening to music (quite loudly as I am sure most of us do) and then I will start to pick up distortion in my left. I turn it down a bit but it is still there. Sometimes it is there and sometimes not.

I once compared the left and the right at the same volume levels and the right could handle a lot more bass. I sent it in to be looked at and they said that there was nothing wrong with it. I brought it home and sure enough it was fine. This was a couple of months ago. Lately, it seems to be doing it again. Is this even possible or am I just crazy?

Mike

gregvet

Switch speakers: Change Right speaker for Left. If problem remains in same channel then it is a source problem. If problem switches channel then the problem is in the speaker or wiring to speakers.

RoosterD

Midnite Mick wrote:

I have had on and off issues with my left lsi as well. I will be listening to music (quite loudly as I am sure most of us do) and then I will start to pick up distortion in my left. I turn it down a bit but it is still there. Sometimes it is there and sometimes not.

I once compared the left and the right at the same volume levels and the right could handle a lot more bass. I sent it in to be looked at and they said that there was nothing wrong with it. I brought it home and sure enough it was fine. This was a couple of months ago. Lately, it seems to be doing it again. Is this even possible or am I just crazy?

Mike

I sometimes think a little too out of the box, but if it is intermitent like that, then maybe there is a simple answer. I remember when I was in to car audio I thought I had blown one of my 10" subs. After close inspection I found a wire was rubbing against the cone making the sound. I don't know if that's possible, but it makes sense if the speaker was shipped (changing the way the wires hang inside). Then after a while of settling the wire sags enough to cause the problem again.

labrat

While not quite in the same class, I had a S4 laying on it's side and eventually the wires did rub against the woofer. It would be worth removing the woofer and taking a look.


Scott

Midnite Mick

Another question would getting a test tone cd give the true answer on this or could it still sound clean given that it is only needing to reproduce a single frequency.

Mike

Midnite Mick

The problem has really come to the front now and is very obvious. At higher volume it is actually the tweeter that is breaking up badly now. It must have been very subtle before as sometimes I noticed it and sometimes I didn't. Heck the guy I brought them to for repair before didn't notice it. My guess is that I damaged it when I first got them and was running just an average receiver. I probably let my desires take over my better judgement. hmmm......again?

Called Polk customer service in Canada. They said they would send out a new one today.:) They didn't even ask for serial numbers or anything. Just a name and address.

This will be my first experience with soldering. Anything I should know about? Solder type? Technique? Any type of flux necessary? etc. Any advice with the process would be greatly appreciated.

Mike

PS. Is a moderate break-in period necessary for a tweeter?

What a bad hijack....I know

Midnite Mick

Nobody has any advice?

Mike