I have AIWA NSX-RV85. The sub-woofer surround tore leaving just the cone. When I play, The woofer just makes a rattling sound coming out of vibrating cone.Any advise on how to fix my speakers.Thanks

Sounds like the speaker cone is tore.

After you confirm that the audio signal is reaching the subwoofer, then either the amplifier or the woofer itself is defective. U can establish continuity across the leads of the SW - if ok, then check to make sure that the surround of the cone is intact. If sw passes the inspection(s) the the anomaly lies with the amp.

Any self-powered subwoofer that accepts RCA Line Level input (most do).

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Aiwa-NSX-HMA86-manual/id/1076ag421/t/2/

Page 28.

Bad news! It sounds like the coil is rubbing inside the magnet of the speaker! There's no cure, when the cone is warped it it knackers it up. Had the same problem some years ago with a Wharfedale speaker. Someone told me you can hit it on the part where the cone joins the magnet -with a hammer!
Anyway it didn't make a bit of difference! And the speaker was chucked.

Make sure your sub is securely screwed to your box, boot build, whatever you have it sitting in. Remember subs are made to vibrate when working, check your screws are tight.

Hi,
Click Sony-Aiwa Support to download instruction manual of NSX-HMA86 (CX-NHMA86) stereo system.

Make sure you have each component linked to your system and thew sound for each input set to prologic to get surround sound.

Hope this helps.

CABLE GUY.

is it the car vibrating or the sub making the noise ? if its the sub making the noise check all the screws holding in the sub and make sure they are tight or make sure nothing got sucked into your box if it is the car making the noise try using dyna mat to help stop the noise also check the surround on the sub and make sure there is no seperation of the surround from the cone

One time I had 2 MTX 10" subs that had a rubber surround. I was playing it a little hard and tore the surround pretty much all the way around. I bought some windshield urethane and glued it back together. I got rid of them a little while after that and surprisingly the guy who bought them tell me they still sound great. So the answer is yes and no. Depending on the surround you might be able to get away with it. Make sure that you use something that stays flexible even after setting. Also depending on where the tear is and how big it is, it might not even hurt the sub. I hope I could help.
-Andrew Hawkins

If you can hear a hiss then the spkrs and amp are OK. It sounds like you're not on whichever source you're wanting to hear or it is on mute. Make sure ther is no function enabled that turns the sound off or over-rides it (like a tape monitor or AUX in...).