Synergistic Red Fuse ...

Hi Jond,
If you discover that you like the Black fuse in your preamplifier,  strongly consider placing one in  the splendid  Yamamoto DAC. It's a  beautiful addition becoming even more nuanced, organic and dynamic  (already strengths ).
Charles, 
 

jond:

Even more important than your listening impressions that occur in five days, I and am interested in your thoughts after the Black fuse has played for a week. Hopefully you can leave it on 24/7 for five days and then two or three days of on and off cycles. Then some critical listening.

Gentlemen, I need your help.  I can't tell if I need a slo-blo or fast blo fuse for my Line Magnetic Dac and 518i integrated amp.  I had previously replaced the originals with Chinese AMR fuses.  Very cheap but quite effective.  I bought slo-blo fuses.  Now I ordered Synergistic
Research Black fuses.  I don't know for sure if I need fast or slo blo
fuses.  Jonathan at Tone Imports said it's important I get the right ones.  
The Dac is 1.6A and the integrated is a 10A.  Jonathan thinks the Dac is a fast slo fuse while the 518 is a slo blo.  How important is getting the 
correct fuse?  For lack of not knowing  for certain; it's probably safer to get the slo blo fuses.  Is there any difference in sound quality?  Maybe
someone out there owns either of these pieces with original fuses
that could help.

My friend Jim Uban is the local Line Magnetic dealer.   I'm sure he can help.

http://www.westfordaudio.com/

Having removed the WA fuse chip i had on for a week and now reinstalling them.

For believers of this little chip, which cost literally a bag of chips reveals that they fill up the mid regions on the black fuse adding more vividness, upfront  with slightly more apparent highlights of details. Well worth a shot if you have them laying around or even you you have'nt tried them.

This reveals how much change these chips make for an astonishingly low price point.

The black fuse shows it is leaner, less brilliant but well, more spread out or balanced sounding in my setup. With a less pronounced mid frequency balance does does allow more depth to come through. But it is now so clear that it does alone produce a dryer sound without the chip. 

The WA chip is greatly effective, but does seem to be an opposite character of what the black fuse produces. With the chip, you have a much greater midbass presence, richer and weighter (more tube like sound).The Black fuse alone, one hears and feels the lower bass  and a more neutral sound with less colour, this come with the expense of much less midbass. Anyone with a speaker with say 8 to 10" woofer might find a lightening of overall bass, any experiences from the testers here?

I guess it really depends on the sonic balance of ones setup, like any cable change, tweak from mars etc... one really needs to try to see if it fits their preferred sonic characteristic.