Synergistic Orange and purple fuses popping


I recently upgraded all my gear with the new Synergistic orange and purple fuses (15 in all) What a difference! My Cary SLP-05 preamp with 8 Vintage Tungsten  6SN7 tubes is having problems with the Orange and Purple Synergistic fuses in the power supply. For some reason when I turn on the preamp amp after warming up the powersupply unit, the 2 power supply fuses pop. So far Synergistic has been gracious and replaced them twice now. I increased  the 2 large slow blow fuses from 1amp to 2amps after asking Cary audio what I should try. I also spoke with Synergistic and they agreed their fuses are sensitive but all the stock fuses I ever used have worked flawlessly. Any body out there with any similar problems and maybe a solution? Any upgraded hi-fi fuses that may be less prone to popping? I think it may be due to a current rush (tube related) when I go from off to on. Help!

Thanks

Greg

gregtheis

Thanks for the feedback Iwin. The tech talk site really got me some answers on what's going on with the pre-amp and an apparent current rush that's causing the problem. Odd that I never had problems with the stock fuses. 

I have the same preamp with the Synergistic Research orange fuses and have not had any issues. I have had problems with my Cary amps blowing Synergistic fuses however. 

Can you leave the preamp switched on and only use the power supply switch to power it up thus avoiding the surge?