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Buzz from front speakers...

Audiogoners,

I just set up an Onkyo TX-SR504 (75W / channel), with 4 JBL Northwood E20s as the front speakers and rear speakers, and a JBL Northwood EC25 as the center channel. The E20s can handle 60W continuous, and 240W at peak, while the EC25 can handle 75W continuous, and 300W at peak. I am not getting buzz from the rear E20s, nor from the EC25 (I don't think). Is it simply the case that I am overdriving (I am new, so excuse my language if I'm using the wrong term there) the fronts, hence causing the buzz?

Is there a possible solution somewhere in the setup? Any other ideas?

I am using 16 guage, Philips copper for the whole system. I would attribute the problem to the wire, but for the lack of buzz in the rear or center channels.

Thanks!

-j.
jawats

Showing 1 response by chazzbo

chazzbo
1,007 posts
 
Have you sawpped the speakers out to make sure that it's not a blown tweeter?Are these modles new or older (surrounds can cause noise if they have deteriorated).Forget about the wires as you'd notice if it were rusted or had major kink/short.Most like;y it's in the reciever but swap the speakers to make sure there nbot blown.Overdriving or playing to loud causes distortion and the distortion will create heat and ultimately blow them.But you usually damage speakers by UNDEREPOWERNG i.e. trying to get more volume then they are capable of or in more cases your amp is not powerfull enough for insensitive speakers,their is clipping (on an aoscillioscope the rounded wave form looks sqaured off not round therefor is "clipped")and ultimately the power isn't there cleanly heat and blown speakers result.But I think it is much more likelly that the amp needs repair and it is not set up.But switch speakers to see if they are demaged first to see if good ones work where bad ones are.If the speakers aren't damged bring amp in for repair.
Chazz
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