Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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RE: Quick fuse Question

Posted by Jonesy (A) on November 1, 2020 at 08:56:38

In Reply to: RE: Quick fuse Question posted by mktracy on October 31, 2020 at 12:14:33:

Different brand specs may vary slightly, but for illustrative purposes...

The MDQ fuses will hold their maximum rating for upto 2 minutes before blowing. Standard fuses about 5 seconds. The D200 circuitry is such that MDQ is required.

Inserting a higher value standard fuse will still be 5 seconds, but it won't blow because it can take more current. Unfortinately it also won't protect your amp. It may never blow, inviting failure to parts down the line.

To help settle your curiousity of sound quality, you could put in a higher value standard fuse briefly to see if any sound improvement. The hope being that there isn't any. Because to run anything other than the spec'd MDQ fuse becomes a safety hazard. Sometimes it's better not to know!

The MDQ fuses available appear to mostly be NOS (new old stock). If you purchase any, or even the ones on hand, make sure the end contacts are good and clean. Likewise the fuse holder contacts. That will ensure you are getting the best out of them.

Cheers!

Jonesy













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