Late to the game but last Friday I received my Synergistic Quantum Blue fuse. I only ordered the main fuse to see what changes it would bring (or not) for my Yamaha CA-1000... And changes it brought. Compared to my Audio Link fuses (local brand in Qc similar to HiFi Tuning) which affected to tonality of the amplifier and made it more lean sounding, the blue fuse did not change the tonality of the CA-1000 at all. It still is a sweet and warm sounding amplifier. There is an increase in bass weight and instruments are even more life like. I could also perceive a decrease in noise during silent passages. There is more fullness to the music reminding me of my past Mc setup. I noticed also that the highs are more natural, a bit less strident. Essentially, it does not remove anything of the good from the amplifier, but only add up some even better qualities. Those fuses are not cheap though. Now the question is do I go full swing and change all the 7 remaining fuses with the Blue? Humm..
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