The New Synergistic Research Purple Fuses

I installed some SR Purple fuses 3 weeks ago. Sound is amazing. Refines the details between the notes. 

@joelberger1 

Perhaps a question best asked of your equipment manufacturer if you are considering increasing the safety margin of the fuse !

For 2 weeks I enjoyed my purple fuse and then it blew at turn on.

I have a lampizator tube dac and I used the std rated fuse for my unit,which is a 1.6 amp slow blow fuse

should I increase to a 2 or 2.5 amp slow blow fuse?

Thx

Even stock schurter fuse has a direction, its not hard to hear the difference.

“ I already. have 72 hours in that direction,“

😉

wow, talk about how good the purple fuse is and the post gets removed.

Agon sends me an email that the post was removed for the following reasons. What a pity....

Content may be removed for one or more of these reasons:

• It looked like spam
• It was abusive towards another member
• It depicts explicit and/or violent content
• It contains profanity

Hi all, can you tell me if burn in of the purple is linear in the time or did you hear up and down? I will son change à blue for a purple.

Thanks for the response Ted.  I switched it back to the original direction because I couldn't hear a difference.   I already. have 72 hours in that direction, are you saying switch it back to the new direction I just tried today and give that 24 hours?

@kclone you did not hurt the fuse but please give it 24 hours, you don’t necessarily even need to play music, just keep the component on which will keep the fuse powered up and listen the next day.

Ted Denney III— Synergistic Research Inc.

I received my Purple Fuse on Monday Feb 7th.  It has been playing non stop since.  I noticed my system was more harsh, it was irritating my ears.   Then I remembered I forgot to try it in the other direction.  I did so just now, but I'm not sure I can tell a difference.  Is the difference supposed to be very obvious?   If I ran it the wrong for 72 hours, does that hurt the fuse in any way?

ebm - Literally laughed out loud.🤣

Waiting for the pink fuse.

I am following up on my post when a first received the Purple fuses many weeks ago. They have burned in nicely, although I think they sound much better right out of the box than past versions.

Everything has gotten even better, with more overall thrust and solidity, yet at the same time, a more liquid and detailed sound with cleaner and more piercing transient attack. Imaging has improved and soundstage size has increased. Let's face it, $200 is no small amount for a fuse.  Though, this has been no small upgrade and has been more subtsantial than many component upgrades that I have made.  Dollar for dollar, euro for euro, these may be the most cost effective upgrade that one can make in a stereo system. I would upgrade to the Purples before spending money on anything else. Very impressive and I find deep solace in the fact that any naysayers will never enjoy this level of performance.  

@bugredmachine 

Thank you very much for the above information, it certainly helps.  Regarding physical size, the fuses are 5x20mm,

Do you know the physical size of it? Is it 20 or 32 mm long?

The T1AL looks like a one amp slow blow.

The T2L is a 2 amp I believe.

Both of those, either fast or slow blow, are available as SR Purples. Try High End Electronics or similar vendors.

I certainly could use a little help.

I have a Copland CTA 305 tube preamp made in Denmark.  There is nothing in the manual or online about fuse values.  I took out the two fuses and wrote down the values as:

T2L 250v

T1AL: 250v

I don't see anything near these on aftermarket fuses for sale.  Can someone relate these values to SR fuse values?

Thanks

When I installed the purple fuses, I put them in the same direction that I had the orange. Then I reversed them and sure enough the purple sounded better in the opposite direction!

So, you gotta try it both ways to be sure...

ozzy

I installed in one way, listened for 20 minutes and heard nothing better. Pulled it out and turned it around and heard better sound, along the lines of a good tube upgrade. I think it makes my system sound better. Would it make more difference if my cables were better, or less if my speakers weren't so resolving? Probably. 

I wouldn't know my left from your left, so no help there. And besides, I just stuck them in and went for it. If it was bad after running for a few days I could swap it 180 degrees. My second one has maybe 30 hours on it so no way to tell yet. it didn't make everything go sour at the start, so.......

For those of you who recently put in the Purple fuse, how did you put them in?  Did you put the fuse in with the writing left to right?  Did you have to change the fuse after listening because you thought it was in the wrong way.  Did it vary by component?  

My manufacturer told me either 3.0 or 3.15 will work without any problem in his system.  

Two purple fuses installed into my Add Powr X4 and BSG QOL. A QSA Red was in the X4 and a Violet in the BSG. 48 hours and counting. Will report back at 300 hours.

I had 4 QSA yellow fuses in my Manger S1 speakers that I took out because I got the value wrong at 6.3A to 10A. Running stock fuses now.

I liked the purple so much in the preamp, I popped the top to my amp and found the fuse and also replaced it yesterday. Letting it burn in. Good stuff.

@ted_denney 

thank you for your prompt reply and kind interest.

@lucapelliccioli after researching with a handful of US dealers and audiophiles we have found that many have 3.15 amp fuses presumably stock or from the factory. I understand you don’t feel comfortable putting in a fuse that is .15 amp over rating, and we respect that. But it does not appear to be a problem from our query. 

Dear @ted_denney 

I hope you will find the time to verify the possibility to produce the Purple fuse slow blow 5x20mm of the rate 3A following our previous emails.

if not let me thank you anyway for your kindness 

A member no longer on A'gon would say that it was because all wire, including in fuses, is directional due to the extruding process.  Hoping you can shed some light on this.
 

That is the prevailing theory, yes. It is also a predictable and repeatable phenomenon. The only complicating factor, when a cable in an audio system has multiple conductors, if all conductors were not aligned for directionality, so that they are all in the same direction relative to their pull or cast as formed, determining directionality becomes splitting the difference between how many conductors are going in one direction and how many in another which can make differences less dramatic. But when you have a single conductor, or all are aligned, it’s incredibly easy to hear the difference.

Anyway thank you @dabel for your suggestion.
 

Happy new year and stay all safe my friends!

Outstanding comeback! I’d never put another man’s gear or wallet in harm’s way. If this is of any comfort, my pre blows 3.15 fast SR Purples … but not a 3 fast bussman. The slow blow tolerance, why would that be any different. You’ll do what’s best for you.

Now, if I could only collect on thee substantial amount of US dollars that I’ve so generously helped out others with ;-)

Regards

Ok @dabel, send me 2 6.500 euros checks as insurance if something goes wrong to my 2 P12 gears and I’ll certainly do. LOL

You’re overthinking this one … Purchase the 3.15 and place your mind at ease.

Thank you thyname and dabel,

I appreciate so much your opinion. Please let me explain better my thoughts:

I talked to PS Audio team, the manufacturer of the P12. They stated very clear to avoid the 3.15A fuse and stick with the 3A model. It seems that also Ted (even if he thinks the 3.15A would be ok) admits that is better to respect manufacturer recommendations.

At the end I prefer to try the right way: searching for a logical solution! A production of 3A Purple fuse according to SR if possible in order to satisfy a personal need and probably part of the market need (Asian and European customers who want to keep their warranty rights valid).

if SR can produce them, that’s fine otherwise I will search for other brands like QSA that have on catalogue a 3A fuse model.

I love the improvement in SQ that the Purple fuses offer (now I’m using them in other components) and I would like to thank so much Ted for his kind approach reserved to me, awaiting his final decision about production possibility. It means a very customer oriented company and CEO. I think so, also in case he has to decline, I suppose it’s not easy during these difficult days adding products on BOM.

Hope other EU customers can find helpful these posts.

@ted_denney 

Not wanting to start any debate, and I don't remember seeing it discussed before, can you without giving away any product confidential information relate what makes the fuses directional?

 A member no longer on A'gon would say that it was because all wire, including in fuses, is directional due to the extruding process.  Hoping you can shed some light on this.

I’d like to back up what Ted and @thyname have expressed, “they are more protective than standard fuses.” This I speak of comes from experience @lucapelliccioli.

Though I completely understand your concern (it’s better to be safe than sorry) the 3.15 amp would suite just fine.

Regards

so lots of customer in Europe (and maybe Asia) would be happy if a 3A Purple fuse will be on production from SR

And I am pretty sure that all these customers in Europe and in Asia are pretty much enjoying their units with a 3.15A fuse 😂

I already told you that there are absolutely zero issues with using a 3.15A fuse instead of 3A. But again, it's up to you to do it, or not.

Thank you, I was afraid some misunderstanding occurred. Phew!

The disappeared post was date 30th dec, unfortunately I have forgotten the whole content. Anyway I tried to explain to Ted that EU version of the PS Audio P12 gear has a 3A fuse recommended from manufacturer, so lots of customer in Europe (and maybe Asia) would be happy if a 3A Purple fuse will be on production from SR.

Hope that helps.

You most likely did nothing wrong.

Sometimes posts just arbitrarily disappear.

Try reposting, it ought to stay.

Dear Moderator, why did you cancel my previous post answering Ted about P12 model in Europe?

So sorry if I did not respect any rukes here, just tell me which one in particulare from the reason that my post were surely not

Spam

abusive

violent

Profanity content

thank you, my aim is to understand where I was wrong.

Yes finding the right cable combination and then adding a SR purple fuse will a greater impact. 

Chiming in, maybe not adding much to the discussion;

I made a bunch of cable evaluations this week and reached a major improvement level but not finished quite yet. Once I hit this week's new level, I was awaiting my Purple fuse so I inserted an Audio Magic SHD beeswax I had in the parts bin and was surprised how good it "sounded". So my expectations were higher that maybe the 'fuse thing' will add improvement. Last night I received the Purple and threw it right in and it sounds slightly different but still nice given one hour of use.

I cannot use the AM SHD long term as it is a 6.8 amp rating and this piece of gear only requires a 1 amp SB or 2 amp std blow. Alfred backed me up if the 1 amp were to blow but it did not, so I'm good to go.

Logically, it makes sense that if we can get more of the electrical pulse/wave to move freely through the choke point, we should have sound that the electronics are fully capable of generating. Much like getting the 'right' cabling in place and hearing how your speakers actually play like $30k speakers instead of $5k speakers now that they are unleashed.

All good things.

I did not have any impact from a FEQ and 15 HFTs last week, but I gave it a shot. Overall, "Tweak week" turned out pretty good for me with the new cabling and fuse so I'm happy with the improvements. 

For information: I have PS Audio P10 and P5 240V. Both had 3.15A stock fuses.

Thank you Ted,

I appreciate so much your kind answer.

Awaiting news from you as soon as possible, meanwhile happy new year. During these days we must all stay safe with our families, listening to music why not.

Luca,

SR fuse tolerances are VERY tight. Much more so than standard off the shelf fuses. We have never had a complaint that they did not blow when protection was needed. in fact if we are getting complaints, it’s that they are more protective than standard fuses. That said, I will look into building a 3 amp fuse but honestly I cannot imagine our 3.15 amp fuse not blowing when an off the shelf 3 amp fuse blows. Still, it’s always best to go with manufacturers recommendations regarding fuse values.

@thyname 

thank you for your opinion.

as mentioned before, the engineering team of the manufacturer PS Audio informed me by email TO NOT USE OTHER THAN 3A.

In power plant in particular.

they did communicate very clearly,

@lucapelliccioli  --- I am not in EU, but here in US, it will practically be zero issues with getting a 3.15A fuse for something that has a 3.00A original fuse. 

Luca what are the exact fuse specifications for your PS Audio regenerator? Size/value/fast or slow. Also if you know, is this a common value for their conditioners?