Sunfire mk 11 sub indicator light comes on, but no sound

check the box for air leaks, or rubber surround deterioraton.

eBay...


Price = variable $256 and up, final cost up to the skilled bidder.

http://desc.shop.ebay.com/i.html?_nkw=Sunfire+True+Subwoofer&_sacat=0&_odkw=Sunfire+True+Sub+MK+II+Subwoofer&_osacat=0&_trksid=p3286.c0.m270.l1313&LH_TitleDesc=1

sounds like a grounding issue........Verify grounded properly

guy gevais

you have a ground loop issue you could purchase a ground loop isolator, jensen makes them for about 40 bucks.I have discovered that if you have cable tv, unplug the incoming cable in your cable box and see if hum disappears.

Some subwoofers can sense the signal on their input and will only start when there's enough signal for long enough time for them to turn on the amp.

Try seting the "subwoofer signal out" on your reciever a bit higher, see if it does the trick, if not, try it with some other source (e.g. an mp3 or CD/DVD player) plugged directly into the subwoofer. If it still doesn't work, there's some other problem with your sub (bad connection inside sub, sub amplifier problems, maybe there's another fuse for the speaker itself, try to check it out).

If it works well with an alternate signal source, the problem might be either in reciever or the signal cable that you use, but could also be something else.

good luck

3rq8 (Triarcuate)

http://www.parts-express.com/pe/pshowdetl.cfm?&DID=7&Partnumber=297-460&ctab=2#Tabs

I had this issue a few years ago and the power cable from one of the inner terminals had come loose. It was still touching but whenever the sub would really pound it would jump off the connection and then reconnect causing it to hum. It was the most annoying thing ever so I finally pulled off the amp plate (super easy) and you could clearly see the loose wire. I had to use a good soldering iron to put it back on since it's a pretty fat wire. If you're not under warranty anymore then pop the back off and see if that's the issue.

-Dylan

you must change light switch now with a new one-and grounding is very very important.