I have a set of Infinity SM-255's. Recently one of the subs stopped working and after inspection found there to be a rip/split at the bottom of the sub. Is this what a "blown" sub is??? Do I need to repair or replace it?
I currently run a Yamaha RX-540 rec through the Infinity's.
If the sub requires replacement, could anyone advise me on what brand to replace it with, due to Infinity not producing the SM line anymore.
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Re: Repair or replace?
If the rip or split extends from the voice coil out to the edge, the speaker may be too far gone to replace. I have repaired expensive speaker cones with epoxy cement, provided the tear is fairly small or narrow. No noticeable degradation of performance either.
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I HAVE 4 PS212 AND FROM WHAT YOU ARE DISCRIBING SOUNDS SIMILIAR TO WHAT HAPPENED TO ME. PLAYING THE SUB AT FULL VOLUME AND CLIPPING OCCURED NOT KNOWING THAT THE FAINT SMELL WAS THE VOICE COIL BURNING AND CONTINUING TO PLAY UNTIL KNOW SOUND LESSON LEARNED BUY A BIGGER SUB SYSTEM OR REPLACE YOUR SUB WOOFER.
IN MY OPPINION THIS IS A VERY GOOD PRODUCT WHICH I HAVE BEEN ABUSEING FOR MONTHS . SO QUIT WHINEING AND PAY YOUR DUES.
I have what sounds like the same problem with my Infinity's. Found a small crack in the foam surrounds of the speaker cone. Looking for a place to buy rebuild kits on the internet when I found this. Hope this helps.
The hum can be from the power supply not properly filtering, and or the output stage also has a short.
There is the chance that the speaker driver coil is now burned, or the power supply is now dead. If ther output stage is shorted and was putting DC on to the speaker cone, this will burn it very easily.
You should sent the unit out and have it serviced, unless you are properly trained, have the service and engineering manuals, and the test equipment to follow up on a proper repair and calibration.