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10th October 2001, 05:19 PM
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#11 |
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diyAudio Member
Join Date: Sep 2001
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Evan, the best option for speaker protection is a relay. This relay protcetion has serveral advantages over fuse protection.
Disadvantages of fuses: - Its difficult to determine the fuse rating because the speaker impedence varies with frequency and the type of enclosure. - If an approximate fuse rating is used, it keeps blowing after a while and in many cases the speakers will die for the fuses. Relay protection: - Speaker is connected only when powersupply is available and this may include muting to avoid turn-on transients. - If DC is detected it immediately disconnects the speaker from the amplifier. Many kits are available for Speaker protection, you can try Velleman Kit K4700. - XL. |
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