Synergistic Red Fuse ...


I installed a SR RED Quantum fuse in my ARC REF-3 preamp a few days ago, replacing an older high end fuse. Uhh ... for a hundred bucks, this little baby is well worth the cost. There was an immediate improvement upon installation, but now that its broken in (yes, no kidding), its quite remarkable. A tightening of the focus, a more solid image, and most important of all for my tastes, a deeper appreciation for the organic sound of the instruments. Damn! ... cellos sound great! Much improved attack on pianos. More humanistic on vocals. Bowed bass goes down forever. Next move? .... I'm doing the entire system with these fuses. One at a time though just to gauge the improvement in each piece of equipment. The REF-75se comes next. I'll report the results as the progression takes place. Stay tuned ...

Any comments from anyone else who has tried these fuses?
128x128oregonpapa

Showing 50 responses by davidpritchard

The Synergistic Research fuses- the Original and the RED fuses have been a big improvement in my systems. I have heard a significant improvement with the following: amps-Jadis, Art Audio, Triode of Japan, Eddie Current ZanaDeux. CD player-Marantz SA11S2. Dac- Antelope. Self powered subs Gallo and SVS.

I have compared the SR fuses to Isoclean and Furotech. I much prefer the Synergistic Research improvements.

Finally they are one of the few companies that allow and encourage a 30 day trial.

They sound good right out of the box and reach their maximum improvement after a week of having a signal run through them
Very nice discussion of fuses so far. I think along with fuses the other change that can make a significant difference in the over all character of a system's sound is the A/C wall socket. I am currently using 4 Synergistic Research and 1 Furotech GTX-Rhodium duplex on my system's circuit.
I really do like the fact that Synergistic Research gives you a 30 day trial to find out what works best for your system.
Charles 1:

Congratulations on a wonderful taken path to sonic improvement. The wall A/C receptacle and equipment fuses have a significant effect on the sound produced by the system. 

Once an audiophile has these bottlenecks removed the sound is so much better.

And finally overcoming the fear of changing a wall receptacle or a fuse in a piece of equipment is actually quite liberating!

David Pritchard
Yes the Synergistic Research ECT (Electronic Circuit Transducer)  are very effective on pre amps, amps, and front end devices such as DAC's and CD players. My SACD player and amp each have 7 of these small cylinders on them. The nice thing is they are easily removed when it is time to upgrade a device and then use on the next piece of equipment.

In order of upgrade I would do A/C wall receptacle, then main power fuse of each piece of equipment, then ECT, and finally secondary fuses.
charles 1dad:
I hope you will consider installing your outlet outside of your music system circuit and run current through it for a week. Then put it in the audio circuit.
I am glad the Afterburner is getting conditioned on an Audiodharma conditioner. I do think it is the best approach. I think a week will do it as there is not the Rhodium plating. It might sound a bit bleached or dry when first installed but will be settled in at the end of a week. I like the Oyaide frame and outlet cover. Remember to use the Afterburner cover plate screw and not any supplied by Oyaide. Might be US versus metric.  
taters:
Thank you for the correction.
Audio Magic makes the $175 beeswax infused fuse for $175.00.
I can find no information about returning this fuse for refund.

Audio Horizon makes an audiophile fuse. Most are $117.00
They carry fuses up to 15 amps rated.
They offer a 15 day trial and return policy to established Audiogon members.
Charles 1:
I hope you are able to first install the Synergistic Research RED fuse in the DAC and then Install the Afterburner A/C outlet.
I gentle reminder when changing the A/C outlet, circuit breaker turned to off and take the time to clean those household wires.
We do not need any shocking results!

I have spent a lot of time investigating the WA Quantum Chips. They certainly do cause a sonic change. For me they tend to give me a sense of subtraction. A sense of hearing detail but at the expense of feeling emotion. They are not expensive and can be returned after a trial.
I am left with a total of one in place on a non user replacable fuse.

I have had better results with the Synergistic Research ECT (electronic circuit transducers) on or near fuses. But more expensive.

Both products have an immediate effect but take about 24 hours to fully settle in.

David Pritchard

Oregonpapa:
I think the "RED" fuses give the most significant change in the system of the various devices we have discussed.

The Synergistic Research ECT's  (for me ) reduce grain and hash. When the right locations are found, the sound becomes better focussed but still is full bodied. My Sacd player, and three amps each like about 7 ECT's installed. It is trial and error where to place but the change is immediate whether it is a good spot or a bad spot. For me they really have let me fine focus the systems.

Nobody has published how the WA Quantum Chips work, but they do affect the sound. Not universally for the better.

Interestingly they even work on acoustic instruments. I know because I bought the music instrument chip for my son. He is an all state high school viola player!  He, his instructor and myself could all hear a change. "The viola had more presence".  I liked the sense of "more" . My son did not.
Oregonpapa:

I very much look forward to your listening experiences with using the RED fuses in your CD player. I found this to be a very pivotal position. My SACD player has one main power fuse and then 5 fuses for the various circuits. I found the main fuse location to be a major change. The 5 rail fuse locations had a much smaller sonic change. One approach would be RED fuse at main fuse and then the WA Quantum chips on the stock rail fuse locations.

Charles1-  I absolutely agree that the SET amplifier magic is only enhanced by the Synergistic Research "RED" fuses. The Emotion type 45 SET amplifier putting out maybe one watt to the Teresonic speakers has an elegance to the sound that was not there with an ordinary fuse. So much more emotionally engaging.
I am not sure where the most efficatious location is for fuse upgrades except to first replace the main fuse of each piece of equipment in the audio chain. I first started with the amp fuse and worked my way "upstream". Even a subwoofer benefits.

Charles1- I did the same thing with my DAC. I ordered the wrong fuses. The great thing with the Synergistic Research dealer organization was the fuse was exchanged for the correct value with no hassle.

Interestingly  to me is the Antelope DAC uses a fuse on both the hot and neutral circuits. It also has its own separate power supply. The "RED" fuses still made a big sonic difference. So despite a very expensive DAC manufacturer ( Antelope) going to the Nth degree for sonic clarity, changing the fuses to  Synergistic Research "RED" made a big improvement.

After putting in a fuse, I normally wait a week of use before changing the fuse direction. I have not heard as big a difference in fuse direction as TGB forum member has. Meaning the new "RED" fuse sounds better in either direction as compared to the stock fuse.
Marqmike:
That was a nice description of the way a new RED fuse breaks in.
knghifi:
I also started at the amplifier when I started replacing fuses, but I have yet to not hear an improvement in a piece of equipment with a RED fuse.

And yes that includes Blue Ray players with replaceable fuses. Dialog becomes more articulate. I wish my Honda radio-CD player had standard fuses so I could replace them!
David Pritchard


jazzon the hudson:
Congratulations on your son making all state! My son plays with the  New Mexico All State Symphony Orchestra this Saturday. Does your son have the WA Acoustic Chip on his violin? It certainly changes the sound of acoustic instruments- violin, viola, and acoustic guitar have all been tried at my house. All had a change in sound- facinating to me.
I agree with the Isoclean fuse. There are other fuses that have made a bigger improvement in my systems.

Great news on getting the Afterburner receptacle burned in. For those who have an AudioDharma Cable Cooker, their new adapter allows the ground wire of power cables to be conditioned. The sonic improvement is well worth the cost. It is called theGroundBreaker.

The other device that to me is an extension of the Cable Cooker is Jim Haggerman's Frycorder. This device conditions the house wiring all the way back to the utility transformer. Another sonic improvement.

The Cable Cooker, Frycorder, audiograde A/C receptacles, and audio grade fuses go a long way in removing bottlenecks in the audio chain.
The Frycorder ia available from Jim Hagerman at Hagerman Audio Labs.

haglabs.com

After ordering on line he shipped it quickly. Simple to use. Plug it in via any power cord for three days and that circuit is conditioned. Then remove from circuit. Ater treating, the music has a better flow, less grain, more emotion.

The Frycorder was developed in 2012. the simple manuel even comes with a schematic. Now that is rare in today's world.

Anouncement with a father's pride- I get to hear my son play in the New Mexico All State Orchestra tomorrow morning. No fuse rolling for me this weekend!

David Pritchard
lak:
The Hagerman Frycorder arrived in about 7 days. The unit is small, well built, and not heavy. The price included shipping.

charles1dad
Thank you for the kind words. 85 top high school students really put out a wonderful big sound. Very adult moment. Then immediate post concert trip to Game Stop to pick up a new video game. Certainly this 21 century is interesting with it's ironies.

On fuse direction:
When putting in a new fuse do a quick comparison and pick a direction. Then wait a week before doing a final fuse direction test. Longer if the system is not played a lot that week- 10 to100 hrs.
I have used both Brands: Isoclean and Synergistic Red. I will be interested to hear your comments after 25 hours on the RED. For me they both improved the sound initally but with further break in- the RED continued to improve to a greater degree. Also after some break in time it is worth the effort to reverse the fuse direction to see if there is further improvement.

David Pritchard
fluffers:
Which manufacturer and piece of equipment does not allow the customer to change fuses?

To all readers of this thread. There is a wonderful review of several A/C duplex outlets by Jonathan Lo. Enjoy the Music.com.  January 2014.

Reviewed- Oyaide
                   Synergistic Research
                    Acme
                   Hubbell
                   Maestro
                   Furutech
I have the Synergistic Research, Furutech, and Oyaide outlets.
Each has different properties that it brings to a system. If buying a first audio grade outlet buy one with a money back return policy. Of course there is an initial change when installed ,but these outlets need 10 to 150 hrs of current running through them to completely open up.

Good listening this weekend!

David Pritchard



Oregonpapa:

I am glad the audio grade fuses have made such a dramatic impact on your your system.
  Synergistic Research has not been "selling their souls" to develop these products .Instead they spend a great deal of time with multiple prototypes and multi person listening sessions to get the sonic signature they want. It basically is a product of advanced thinking combined with hard work .

We are the beneficiaries of this process of product development.

knghifi:

I applaud you for taking a break from system evaluation listening. 

geared 4 me:

I have ordered Synergistic Research products from the following with excellent results.
High End Electronics- Alfred and Betty Kainz, Apple Valley, Ca.
Scott Walker Audio, Anaheim, Ca.
David Weinhart Designs, Los Angeles, Ca.
The Cable Company, New Hope, Pen.

All of the above companies have given me excellent service when ordering Synergistic Research products. All have been excellent observing Synergistic Research's return policy!

I look forward to reading about the changes the "Black" fuses make. 
In the three systems I am responsible for maintaining and optimizing, two use "RED" fuses and one uses the original Synergistic Research 20 fuses.

David Pritchard











Gwalt:
Your approach is certainly the best, but it takes time and effort.
The Synergistic Research slow blow fuses are shipping as of today..
I very much look forward to gwalt's observations with the Audio Magic and RED fuses, and also to my reactions comparing these new BLACK fuses to the REDS and the original SR20 fuses.

David Pritchard

Synergistic Research RED fuses started shipping yesterday for slow blow types, and fast blow types start shipping in one week.

David Pritchard
Jack Shelton- Great trumpet player and a really funny guy on the old television shows. These wonderful fuses and A/C duplexes allow us to hear so much more detail with correct harmonics, it makes the music connect on such a stronger level.

Even with pre instalation burn in, I have found the A/C duplex takes about a week of being used in a system to reach its final sound. Although a lot of work, I compared the Synergistic Research Teslaplex, Oyaide R1, and the Furotech GTX-R A/C, receptacles in my system. My audio circuit has 5 outlets on one line. My final choice has been 4 Synergistic Research Teslaplex outlets and one Furutech GTX-R outlet. more than one Furutech created a too much situation. Like too much salt on a perfect steak.

The Synergistic Research BLACK fuses are supposed to arrive Friday.
It certainly will be interesting and educational comparing their sonic changes with the RED fuse. Synergistic Research (on their Facebook site) says their fuses can be used together in the same componet. So no need to install all BLACK versus all RED fuses.

David Pritchard
Oregonpapa:

As you are using an older Oyaide outlet, I do hope you will consider trying a Synergistic Research Teslaplex SE outlet. Since it comes with a 30 day trial, there is not much to lose. In my system there is a significant sonic change between the Oyaide and Teslaplex. I think the change is worth hearing, and then deciding which works better for your system.

Clifford Brown- great music. First purchased LP 1970 - I liked the cover art so I bought it. The great music was a bonus!

Today I get to hear the wonderful cello player Zuill Bailey  playing live solo Bach. The auditorium only holds 190 poeple.To me this is Jazz composed in the early 1700's. His CD's are moving!

David Pritchard
Oregonpapa:

Absolutely yours is the best approach- one change at a time with time to digest what the change has done. It is easy to rush things and then not be happy with the changes.

Vibraphones- inspired by angels having conversations. Do not forget Gary Burton, and Red Norvo.
The marimba is another wonderful instrument. The warmth of those vibrating blocks of wood sound very good to me.

Hopefully BLACK fuses arrive tomorrow.

David Pritchard
Oregonpapa:
Very nice real time report.

The Synergistic Research products with UEF technology, take 100 hrs for the UEF to synergise with a system. So we should anticipate a longer break in period.

Your report reminds me to install the fuses first on my headphone system and leave it on for 5 days before listening.

Break in is a fascinating and often frustrating process.

This is why the 30 day Synergistic Research return policy is so important. There is for me simply no worry about these fuses. They will go in the system- get a lot of hours on them.Then their direction changed once to see if that is an improvement and then removed and compared to the REDS.

My wife Jean is a world class cook with her Viking oven. I do not open the oven door and take a taste test of her fabulous roast turkey every hour or her indescribably good pecan pie while it is in the oven.

I patiently wait in the kitchen with our two Corggi dogs until it is time to enjoy.
The Synergistic BLACK fuses were installed in the Antelope DAC (uses two) and in the SET Type 45 tube amp. Speakers are Terasonic high efficiency. Since the DAC has a digital volume control, I will leave the system on but no sound from the speakers until critical listening this Saturday. That way I do not listen to any break in changes and  temporary impressions that may cloud my listening.

I may find I like an all BLACK system, a combination of RED and BLACK or an all RED ! 

I plan to have FUN and enjoy listening to the sonic changes.

David Pritchard
On the Subject of Fuse Direction.

The synergistic Research Fuses are Quantum tunneled in one direction-
from the "S" of the word Synergistic  towards the "h" in the word Research. So at least this corresponds to the arrow of some other fuses. You want Current to flow from the capital "S" towards the other end of the fuse where the last letter "h" is.  
So on some fuse holders ( like the tray type holder next to power cord connectors) , it is easy to figure out the "hot" side and the "neutral" side and put the fuse in in the optimum position on the first try. The other spots one has to experiment for optimum results.

I hope this helps.
David Pritchard
Charles1dad:
Still experimenting with two of the three systems. The BLACK fuses are definitely directional in sound in my systems. At least at the power cord application be sure and try both directions. Put one fuse in at a time and allow it to settle in for 24hrs of play before the next fuse.

I just listened to the Teresonic speaker, Type 45 tube Amp, Antelope DAC system affter the system has been on 24 hours.

Turning the DAC volume up from zero sound to 85% , the music filled the room as never before. There is now a better sense of fullness, detail in instrument location and vocals, and most importaintly emotion.

This is comparing the Black versus RED fuse. A much bigger difference in sound improvement than when I went from the Jadis amp to the Emotion Type 45 tube amp!  A bigger change than any tube rolling change I have done.

So in this first system evaluated BLACK fuse > RED> stock fuse.

I do not ever want to go back to a stock fuse.

To all the non Synergistic Research fuse users reading, I urge you to give yourself the present of a BLACK or RED fuse. Try one and send it back if not happy.

David Pritchard
Oregonpapa:

I am glad your fuse settled in and the music is really flowing. I think your description is quite good between the BLACK and RED fuse. In some rooms + systems the "added" noise of the RED maybe psychoacoustically more pleasing than the more accurate BLACK fuse. No different then a live music performance with a dead crowd, a noisy crowd, and an energized crowd.

almarg:

In my system that has had the pronounced improvement, the fuses are in an Antelope DAC that is never turned off and has a music source running 24/7. I certainly hope you will try the RED or BLACK fuses. I have found the changing of fuses to be a facinating and worthwhile project.

IT is certainly cheaper than comparing Psvane to Elrog tubes !

David Pritchard

Today I put a Synergistic Research Black fuse at the main fuse location of the SACD player ( previousyl a RED was in this place). This player is in my dedicated headphone system.

An immediated and striking improvement in the soundstage and the music was more detailed.

If you have a headphone system with Sennheiser 800, Enigmacoustic Dharma, or Audeze headphones, the Synergistic Research headphone cable really interacts fantastically with this BLACK fuse.

So far I have tried the BLACK fuse in the following:
Antelope DAC with its Voltikus power supply
Art Audio PX-25 Tube amp
Emotion Type 45 tube amp
Marantz SA11-S2 SACD player

All have had a major improvement in sound.

David Pritchard 
Wig:
If you have the time and patience, put the Black fuse in the CD player first, and put it on continuous replay. After 75 hours, change the direction of the fuse. You may hear a significant difference- I did. One direction just sounds "more right". Then replace your other fuses. Does your CD player only have one fuse? My Marantz SACD player has one main power fuse and also 5 rail fuses!   Currently it has one BLACK (main circuit) and five RED (rail circuits) fuses installed.

I think you will get a great deal of insight in what changes these fuses evoke by placing them in the system in stages.

Another nice benefit of the Synergistic Research 30 day trial.
Today I added a Synergistic Research Black fuse to the dedicated headphone system's amp. The SACD player's main fuse already has a Black fuse installed. I double checked the sound of the original Red fuse (switching directions to make sure the sound was optimised).

I then put in the Black fuse (already broken in with a 100 hrs of use). Again I listened with the fuse in both directions and one direction was better to me.

I then compared the direction optimised RED to the Black.

The Black did a lot of thing better but...

I then realized there was a degree of dryness to the sound. Especially critical to get this right when listening to headphones. I moved my front footer (Synergistic Research MIG's)  that is under the SACD player towards the front of the player 1/4 inch!  I did not adjust the back two footers. BAM ! The sound now had the emotion, flow, and detail that I so much value. So in my opinion the Black fuse is a more developed fuse than the Red, and the Red fuse makes an ordinary fuse sound terrible.

The change in sound is of a magnitude that one may need to readjust component footers, or change a system's sub woofer settings.

I found today's time and effort was rewarded in a jump in my system's ability to generate musical bliss.

David Pritchard
Wig:
That is a good description you wrote of the sound depending on how the fuse is orientated. I absolutely agree with giving them a lot of break in especially with SACD players. Maybe a couple of on - off cycles  over the next 5 days. That's an unscientific observation of my CD player responding to some on - off cycles.

I should have gotten the Sony, the Marantz SA11-S2  has 5 fuses !

My last shipment of fuses has a note in the box. It points out the BLACK fuses have a small circle of UEF material at the middle of the fuse barrel. Be careful not to scrape that off putting fuses in and out.

Do not forget any sub woofers in your systems. They really respond to the Black fuse.

As I type I am listening to Grammy winning classical celloist Zuill Bailey playing duets with guitarist David Leisner. The album is "Arpeggione". I have been fortunate to hear Mr. Bailey multiple times including in the recording studio. The Black fuses are really bringing out the bite of the bow across the cello strings and the wonderful low and complex harmonics. At the same time the delicate overtones are there with David Leisner's  guitar work.

I do hope all reading this thread will consider trying the Black  fuse. I think they are worth the effort to audition and they can be returned if they do not work in your system.

David Pritchard





skipping:

Lucky day for you! I also have a Marantz SA11-S1 player. It uses 5 fuses for the various rail circuits. The print on the circuit board says 1 amp small slow blow 250 volt. I have blown a fuse (middle one) of the five fuses. This went to the CD drive- laser mechanism.  I talked to Marantz repair and put in 1.6 amp fuses in these 5 locations. No more blown fuses. The main power fuse is also located inside the unit and can not be replaced by the customer ! The best you can do for this fuse location is put a WA Quantum Chip (for small fuse $6.00 ) on top of the soldered in place main power  fuse. I think you can get both fuses and the WA Chip from High_End Electronics, Apple Valley, California.

The cover comes off but it takes courage not a Marantz tech. After the screws (3) along the top of the back are removed, you need muscle. The top slides towards the back 1/2 inch and then lifts straight up and off. There are two places along the top back cover to insert a long flat head screw driver and pull the cover towards the back. You can also put a thin flat head screwdriver along the front seam to help move the cover backwards. The covers are really on tight  but do come off. I do have a few tiny mar marks from removing the cover. I got over that and now pop the lid more frequently than on my Honda mini van! 

Problems- call me: five-seven-five-six-four-four-one-four-six-two.

David Pritchard
charles1dad:

The Black fuses certainly do need more break in hours than the original SR20 and the RED fuses. As you pointed out the change in sound does not show a linear path of improvement, but there is a sudden improvement and only after "x" number of hours. Then there is a continued improvement.

I believe the increased break in time is the UEF material that is placed in that small circle located at the mid body of the fuse. Synergistic Research is now sending a little diagram of the fuse pointing out to take care not to rub this dot when putting in the fuse. So now I install them so I can see the "dot: so I do not rub it off installing of removing the fuse.

Today I changed out the rail fuse that protects the laser of my SACD player and even here the sound changed. 

Upgrading fuses and a/c wall sockets has been much more rewarding than tube rolling!

David Pritchard





lak:
I have changed out the rail fuse on the Marantz SACD player that only sends power to the unit's transport and laser. No other changes. Big improvement in sound! This fuse location is important.

Oregonpapa:

The wall outlet upgrade is going to make a significant difference in sound. If you have more than one outlet on your audio circuit,  each one upgraded will make a difference. They need 7 to 14 days to break in. At first you will hear a "louder" more forward sound. It may sound "out of Focus" several hours later. 24 hours latter somewhat better, and then when you are tired of wondering if they are that helpful they suddenly open up like the fuses do.

Cellos also sound Great with the Black fuses in my system.

I hope you will listen to Zuill Bailey's newest release of cello and guitar music."Arpeggione" by Zuill Bailey and David Leisner. Azica label. It will be released on Amazon at the end of the month. Zuill's 1693 cello has the best tone out there. You will hear the rosin flying off the strings!

David Pritchard

wig:

I think it is a great CD and very well recorded.
Juillard String Quartet come to Las Cruces, New Mexico March11, and El Paso,Texas  March12. If you can go I have tickets.

cal3713
Synergistic Research passes a burst of High Voltage thru many of their products which they call Quantum Tunneling.
WA Quantum Chips are made by a European company. They do affect the sound when placed on electrical components.

oregonpapa:
Thank you for the suggestion on Chico Hamilton.

Do the Black fuses also make a difference in speakers? Well they certainly do in subwoofers!  I changed out the Isoclean 6 amp fuse to the Synergistic Research Black, and at this location the Black fuse also makes an important improvement to the system's sound. The Isoclean fuse had a much lesser effect.

David Pritchard
Mapman:
I am glad you mentioned the fact that your Grandmother could hear and appreciate the improved sound using isolating speaker stands.

My Mother is 92 and legally blind from macular degeneration. Like your Grandmother she appreciates what she hears, and probably could care less what isolating material  a speaker stand uses or what materials or treatments are done to a fuse to improve the music. Many days are difficult for my Mother. When she feels  the stress of advanced age she turns on her music system. She has the Synergistic Research Black fuses installed in her DAC, Amp, and Sub Woofers. They were installed one at a time and each time she heard an improvement. She gladly paid the cost of the fuses. She said "Well your spending your inheritance".

I answered , " No my inheritance is the joy I hear in your voice and the smile I see on your face  when you listen to your music:.

Nobody can take that away from me.

David Pritchard
charles1dad:
Absolutely correct. I now have a lot of time with the three types of Synergistic Research fuses and each brings a different sound to the system. In the Horn system the original Synergistic Research SR-20 fuse and the Black fuse work better than the Red in the amp and sub woofer position.
I certainly can believe gwalt reaction with the Red in his system.

In the headphone system the Red improved the system more than the original SR-20 in the amp and SACD location. Eleven black fuses arriving tomorrow to test the rail fuse locations for the two SACD players.

I am very glad that Synergistic Research has and encourages their customers to use the 30 day trial. In the end it is what makes my listening the most fullfiling that counts. I hope all readers of this thread will try some premium fuses if they are still using only original fuses. There is a tremendous amount of music that is being silenced or distorted by ordinary fuses!

David Pritchard
p59teitel:

A very nice concise and articulate description of the sonic changes when using the Synergistic Research Black fuses.

What speakers are you using with the Star Sound platforms?

David Pritchard 
lowrider51:

You will hear a significant difference upgrading the power fuse on your amp.
In fact in an amp that is the most critical location. 

David Pritchard
lowrider 57:
I think you are going to be very happy with your CD player and amp. With upgraded fuses in these two locations I believe you will experience a much improved sense of the music flowing.

I look forward to your thoughts after the break in period.

David Pritchard
limniscate:
Thank you for the report. I believe the fuse location you are evaluating is in the Magniplanner speakers. I hope you will be able to try the Synergistic Research fuses in your amp, pre amp, or source.

So in Magniplanner speakers we have two positive results using Synergistic Research RED or BLACK fuses and on listener with no improvement.

Oregonpapa:

That is some special piano music you have been listening to!

David Pritchard
A joyous Valentine"s Day to all. Time for some beautiful music via the headphone system.

David Pritchard
Reading the Magneplanar  1.7 information, the fuse is a 4 amp Fast Blow so do not  try these Fast Blow  fuses in an amp, preamp, or source.

These fuses are to protect the tweeter and so the RED fuse in this location did not make a difference for limniscale. Hopefully he can return them.

The Sennheiser 800 headphones last night sounded glorious. With the Synergistic Research Black and RED fuses in the headphone system, the soundstage certainly is not just an inside my head sensation. This system also takes advantage of the Synergistic Research A/C wall plugs and the Electronic Circuit Transducers (ECT).  The ECT's allowed me to reduce "glare" and really fine tune the qualities I wanted in my system. There is an excellent article (2014) in "Enjoy the Music" that compares several Audio grade A/C wall plugs.

I also like the fact that you can take the fuses and ECT's out of your system without difficulty.

David Pritchard
limmiscate:

Please do not put the Maggie fast blow fuses in any equipment that uses slow blow fuses. I sure do think your DAC would like what the Synergistic Research Black fuses do. I was impressed how they sound in an Antelope DAC with a Volticus power supply.

Wig:

These new fuses do something really special for guitar and lute music. The two Julian Bream - John Williams duet CD's  are just stunning when the Black fuses are in a system.

The Marantz SA11-S2 SACD player takes 7 fuses!
Listening to some John Dowland lute music tonight - devine.

David Pritchard
audiolabyrinth:

I think you are going to hear a significant difference with the audio grade fuses. I have a feeling that Krell is going to really open up and reach it's full potential. I look forward to your report. Please replace the fuses after the amp has been off a short while to prevent an unnecessary blow fuse.

David Pritchard
To further clarify Synergistic Research Dealer:
Alfred Kainz," highend- electronics.com". Apple Valley, California.
Look under tweeks on the Audiogon for" sale page".