HiFi-Tuning fuses in speakers

[Feanor]

I thank emaidel for his recent endorsement of HiFi-Tuning fuse as used in his Dalquist speakers. That put me in mind to try them in my Magneplanar 1.6QR's. Many have recommended bypassing the fuses in the Magneplanars but I have be reluctant to do that, so better quality fuse seemed like an option. I bought my HiFi-Tung fuses from Parts ConneXion.

Let me say that I'm no tweakaholic but I'm not totally closed-minded either. Much of the buzz about these fuses has been about their use in active components like amps, but frankly to me the much more obvious and plausible use is in speakers where the actual music signal passes through them. In the case of my Magneplanars the fuses protect only the quasi-ribbon tweeters, (actually mid-tweeters since they carry the sound above 600 Hz).

I've been listening to them now for about a dozen hours and I do have the impression of a real improvement. That is, a fairly subtle improvement to transparency and, maybe, microdynamics; there is no change in the musical character or tonal balance.

I have not done A-B testing (as yet anyway). Before hand I just listened to a few or my favourite test pieces, then I popped in the HiFi fuses and listened to them again. By the way, my testing favourites included those pictured below. I think medium-scale choral works are ideal for evaluating sound where, of course, the recordings are of outstanding quality.
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