Replacement Fuse's - What are my options ????

Aggielaw, thanks for the tip. I have the DNA-500 and I believe there are 8 fuses inside, so I will be very interested to hear what Steve has to say before I spend over $200 on fuses to "improve" the sound of an already excellent sounding amp.

Mitch2, I used to own the DNA-2 Rev A amp and shortly before I sold it, I replaced the internal fuses (2 on each rail) with four Isoclean.

It took about 48 hours of burn-in and after that the improvements were about equal to replacing standard wall receptacles/outlets with cryo-treated Oyaide outlets. Not identical improvements but the percentage improvements were about the same.

More detailed, lowered noise-floor, and a richer/warmer overall presentation. It was well worth the $25 x 4 improvement.

Just don't forget to account for them in your price should you ever sell the amp. I forgot.

-IMO

Hifi tuning fuses ,anyone saying that these fuses are not a sonic improvement either their equipment is to cheap
or they are deaf , the bit about Audio research saying it was not worth it ,is nuts too cheap sounds more like it .
I put these against the Iso clean and I found the iso clean a little more open on top , with the Hfi tuning a little richer throughthe mids and a slightly fatter bottom.
Picking hairs here, also the Quicksilver gold conducter treatment on the fuses
It was another level again ,as with all the Rca ,and power leads 2 no brainer Tweaks !

"the HiFi Tuning fuse won almost across the board...... The only place I might have preferred the Isoclean was with hard rock."

I was comparing Isoclean to another audio grade fuse and have the same conclusion. Not impressed.

Another audio grade fuse to look for is the AHP fuse from Germany which recently has a North American distributor. Heard good things about these from ears I trust. You can get more information in the August newsletter in PS audio website.

Do the European fuses work as well on 60 Hz power supplies, seeing as they are designed for 50 Hz? This question is probably less silly than if the direction of the fuse is important.
Bob P.