Question about Celestion S10 Subwoofer
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Posted on Jan 02, 2017
SOURCE: Celestion S8 Subwoofer
If the sound source is on a different circuit or plug it produces some kind of a loop (dont know the technical name) Go to radio shack and get a ground loop disrupter that goes on the audio cables right before the speaker and it eliminates that hum.
Posted on Oct 05, 2007
SOURCE: Celestion S8
Voltage regulator output electrolytics (220 uF/16V) heat up and start squealing/making geiger counter noise several minutes after power on. Noise stopped when electrolytics are sprayed with freeze spray. I intend to move the regs to the power amp heat sink (with heat sink greased insulators), add .1 uF tantalum caps to the regs output as close to the regs as possible and replace the 220uF/16V electrolytics with higher voltage units.
Posted on Mar 22, 2009
SOURCE: I have a celestion s80
Dont remember which cap it is , but its 47 uf 35v, on one corner of the board. You can use a slightly bigger value and slightly higher voltage if thats all you can find. Check the two caps next to the voltage regulators, these go as well problem sorted!!!!
Posted on Oct 03, 2010
That might be the woofer itself in the subwoofer, or the ampliifer. 5 year warranty on the woofer, one year on the electronics. The woofer can be removed and checked; it should be about 3.4 ohms DCR. Other wise, To find the authorized Harman kardon service center in your area:
That might be the woofer itself in the subwoofer, or the ampliifer.
5 year warranty on the woofer, one year on the electronics.
The woofer can be removed and checked; it should be about 3.4 ohms DCR.
To find the authorized Harman kardon service center in your area:
Posted on Nov 23, 2010
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