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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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hissing sound coming from behind woofer on one side AR11
Anyone know what this means? This hissing sound isnt constant, it is
irregular: It isnt related to the music or any movement of the cone or any signal put through it, though it doesnt happen when no sound is put through the speaker. Frankly it sounds more mechancial than electronic (as if there is something behind there!) but as I say, it isnt related to whatever is coming through the speaker though it does increase and decrease with adjustment of the volume control. Andit is louder than most signals put through the woofer itself?? Is it indicative of some pot in the crossover needing cleaning or is there something else going on please? (I have seen reference to people improving the sound of AR11s by bypassing the tone controls in the speaker completely). This speaker is quite elderly and I would imagine that if it does use mechanical pots, they must be fairly dirty by now |
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