2. misc-audio
  3. 131672-481

The new Synergistic Research BLUE fuses ....

New SR BLUE fuse thread ...

I’ve replaced all 5 of the SR BLACK fuses in my system with the new SR BLUE fuses. Cold, out of the box, the BLUE fuses stomped the fully broken-in SR BLACKS in a big way. As good as the SR BLACK fuses were/are, especially in comparison with the SR RED fuses, SR has found another break-through in fuses.

1. Musicality ... The system is totally seamless at this point. Its as if there is no system in the room, only a wall to wall, front to back and floor to ceiling music presentation with true to life tonality from the various instruments.

2. Extension ... I’ve seemed to gain about an octave in low bass response. This has the effect of putting more meat on the bones of the instruments. Highs are very extended, breathing new life into my magic percussion recordings. Vibes, chimes, bells, and triangles positioned in the rear of the orchestra all have improved. I’ve experienced no roll-off of the highs what so ever with the new BLUE fuses. Just a more relaxed natural presentation.

3. Dynamics ... This is a huge improvement over the BLACK fuses. Piano and vibes fans ... this is fantastic.

I have a Japanese audiophile CD of Flamenco music ... the foot stomps on the stage, the hand clapping and the castanets are present like never before. Want to hear natural sounding castanets? Get the BLUE fuses.

4. Mid range ... Ha! Put on your favorite Ben Webster album ... and a pair of adult diapers. Play Chris Connor singing "All About Ronnie," its to die for.

Quick .... someone here HAS to buy this double album. Its a bargain at this price. Audiophile sound, excellent performance by the one and only Chris Connor. Yes, its mono ... but so what? Its so good you won’t miss the stereo effects. If you’re the lucky person who scores this album, please post your results here.

http://www.ebay.com/itm/ULTRASONIC-CLEAN-The-Finest-Of-CHRIS-CONNOR-Bethlehem-Jazz-1975-NM-UNPLAYED-...

Overall impressions:

Where the RED fuses took about 20 hours to sound their best, and the BLACK fuses took upwards of 200 hours of total break-in, the BLUE fuses sounded really good right out of the box ... and that’s without doing anything about proper directional positioning. Not that the BLUE fuses don’t need breaking in, they do. The improvement continues through week three. Its a gradual break-in thing where each listening session is better than the last.

Everything I described above continues to break new ground in my system as the fuses continue breaking in. Quite honestly, I find it difficult to tear myself away from the system in order to get things done. Its truly been transformed into a magical music machine. With the expenditure of $150.00 and a 30 day return policy there’s really nothing to lose. In my system, its like upgrading to a better pre amp, amp, CD player or phono stage. Highly recommended.

Kudos to Ted Denney and the entire staff at SR. Amazing stuff, guys. :-)

Frank

PS: If you try the SR BLUE fuses, please post your results here. Seems the naysayers, the Debbie Downers and Negative Nellie’s have hijacked the original RED fuse thread. A pox on their houses and their Pioneer receivers.

Frank



128x128oregonpapa
nonoise's avatar
nonoise
10,823 posts
 
jetter, 
I've always considered the source when responding. That, and I don't think teo audio or uberwaltz needs to be grouped with my experiences to make a point. 

As for "ignoring them", how's that going?

All the best,
Nonoise
geoffkait's avatar
geoffkait
23,365 posts
 
Georgehifi wrote,

(Re sending fancy fuses to audiophiles upon request) +1 Hypothetically a great idea. That then takes the expectation bias out of it as well. All prospective fuser’s should ask for this.

>>>Uh, how would that take the expectation bias out of it? Wouldn’t the psychology be that since the fuse company was essentially giving them something for nothing, at least temporarily, the audiophile would believe the fuses would work. Otherwise why would they make such a generous offer? The dude would EXPECT the fuse to work. That’s what expectation bias is. Obviously if it was a naysayer who asked for the fuse he’d be all psyched out believing the fuse wouldn’t work. Which is possibly what happened with the Wolfman and Moops.
bobee's avatar
bobee
8 posts
 
After reading all the good reviews, I want to try replacing the fuses at the back of my CJ ART KT120 amps with Synergistic Research BLUE fuses but don't know which specification of the fuse to use.  Can anyone who knows help me on this?  Thanks.
teo_audio
2,197 posts
 
If one was to run a fuse, any of the types of fuses here in this thread being speculated on..any fuse of that size/type...under complex loads, through a complex set of distortion measurements on a audio precision system , lets say, an SYS-2722...and run a whole plethora of tests, on a hundred different fuses..a pattern of distortion measurements would be the result.

high order odd harmonic distortions.

The human ear is VERY sensitive to odd order harmonic distortion.

Again, this is the distortion pattern a fuse exhibits under the highly dynamic load that a piece of audio equipment puts the fuse under.

It is so well known, so well documented in the realm of expected fuse behavior... that an engineer of fuses and an engineer of audio equipment would look at you like you had three illiterate heads if you asked a question of it being measurable or noticeable in it’s effect on an audio amplifier.

Fuses, under dynamic loading conditions, exhibit high order odd harmonic distortion in how they deal with the current and voltage load.

the end.

High end audio fuses, do their best to eliminate or negate those expected distortions as much as is possible, so they are less audible.

I don’t buy high end fuses myself, I go for long time lag fuses (10kA flash break point), non magnetic ones with ceramic bodies, and that is as close as I can get to an expensive audiophile fuse with a custom designed filament, but... for about $3-5 each. This is the most linear distorting fuse you can get to without going ’audiophile’ and expensive. I’d even wager that the fuses that are cheap in the audio world, might just be made by these given companies like cooper-bussman, schurter (germany), SOC of Japan, and so on.

I can do this myself, but don’t recommend that others do it without research, as you can’t just stick any fuse in a socket, as you can easily invalidate the warranty and the safety of the device. No random fuse changes, just cause it sounds better.
nonoise's avatar
nonoise
10,823 posts
 
Need i say it?
More to discover