Synergistic Red Fuse ...

Question:  I purchased 2 SR red fuses for my Primaluna Premium with KT-120. Loved how they sounded but both blew with in a week. They were the correct amperage. Could the the KT-120 be responsible for this. Spoke to the US rep but couldn't give me a definitive answer. Told me to go with the next bigger amp rating. Any thoughts.

Frank,
I can imagine how good your listening session was enjoying those three stellar musicians. Last night I listened to Lester Young accompanied by Oscar Peterson, Barney Kessel, Ray Brown and J.C. Heard. Mono recording from the mid 1950s. Lester had such a beautiful tone and emotional expression. Lester is a genuine icon on the tenor saxophone.

Andy,
I have that McCoy Tyner  recording and I agree with your assessment. 
Charles, 

zimwig:

I have had a Synergistic Research SR-20 fuse blow on start up on my tube headphone amp. I went to the next larger size and no further problems for the last two years. The fuse is at risk to blow on start up and especially if the amp goes through a quick off and then back on for a quick tube change. If turing a tube amp off give it a few minutes for the tubes to cool before a restart. Hot tubes have less resistance to current flow.
David Pritchard
 

Andy,
I'd like to suggest a McCoy Tyner recording that's wonderful both sonically and musical interpretation. "Manhattan Moods" it features McCoy and the fabulous Bobby Hutcherson on vibraphone. It's pure beauty 😊😊
Charles, 

I don't order anything from a company that I feel makes up ethically questionable technobabble ad copy, and I think questioning the technology SR used to design things, including the fuses that blow due to incorrect ratings (using a $6 Littlefuse this doesn't happen in my rig…ever) is reasonable. The basis of my argument is simply logic and sanity, and astonishment at the hubris of the hucksters. Here's almarg's seemingly ignored second paragraph that deserves repeating:                                  

"But speaking of reasonableness, I can't help but feel that what seems to me to be the utterly unimaginable and technically inexplicable DEGREE of the positive effects that have been reported for not only these fuses, but for SEVERAL OTHER products that are ALSO made by SR, that have recently been reported on by many of these same posters in other threads, reflects negatively on the credibility of the degree of the reported benefits, if not their existence. And personally I find that to be a net negative with respect to the encouragement it provides for investment of the **time** that would be required to properly assess these tweaks in my own system. Return privileges notwithstanding."

Again, well said.