Von Schweikert VR4-JR

If you suspect the unwanted sound is a mechanical resonance from a speaker driver, try running a frequency sweep (though be careful with volume level as you get into the highs - you don't want to fry a tweeter.) If there is a resonant frequency you'll notice it as the sweep comes up to that frequency and then it'll go away as your sweep continues to climb.

You can probably find a sweep you can download as an audio file if you do a Google search.

If you are hearing it from ALL the tweeters, I doubt very seriously it is a driver problem. It is most likely a product of whatever recording you are listening to at the time, combined with the level you are listening at. And you may just be more sensitive to this particular frequency. I would play these same tracks on a different system and see what you come up with.

Since you say that ALL the tweeters exhibit this, I don't think it's a driver issue. Sounds more like it's a problem with the recordings. I would listen to the same material on a completely different system and see if it is still audible.

Hey folks,

I appreciate all your help. It ended up to be a bad preamp. I set up the speakers using my surround system receiver and the noise went away. I then checked my amps and all was ok. So the preamp is giving off a slightly audible distortion at all levels. Its interesting because when listening to Classical music, it cannot be heard. Its only overdriven guitar sounds that seem to make it audible. I guess I shouldn't have quickly blamed the speakers since the noise was heard through all the tweeters. I did also check all the wires as well.

Thanks

Greg

Blindjim, why did you replace the tweeters on your jr's? Sometimes when listenning to some recordings with cymbals, I feel like I should replace mine. It makes me wonder if I melted some of the voice coil or something in them. Over all though, I love my VR4jr's. They still amaze me.