Synergistic ResearchMaster Quantum FusenewSynergistic Research MASTER Fuse - maximum resolution plus the warmth needed for most systemsPlease note: We stock only the slow-blow fuses. Fast-blow fuses need a short lead time. Master Fuse is an entirely new kind of Fuse. In the past, SR developed the highest resolution fuse given the...595.00

Synergistic Research MASTER Fuse - maximum resolution plus the warmth needed for most systems

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Ships fromApple Valley, CA, 92307
Ships toUnited States and Canada
Package dimensionsunspecified
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Shipping costFree
Original accessoriesBox
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Please note: We stock only the slow-blow fuses. Fast-blow fuses need a short lead time.

Master Fuse is an entirely new kind of Fuse. In the past, SR developed the highest resolution fuse given the current technology while voicing the fuses to complement a maximum number of systems. And for over a decade, as newly developed technologies came online, like new UEF Compounds and new conditioning processes, SR has applied them to the next generation of cutting-edge fuses, usually every two years. Of course, SR were striving for maximum resolution plus the warmth needed for most systems to sound musical. SR never could press resolution and other sonic traits as far as they could have.

Enter Master Fuse.
The first Synergistic Research fuse developed expressly for full resolution, dynamics, sound staging, speed, and impact without the need to create musicality as a system-wide fuse loom. Instead, SR engineered Master Fuse to work alongside Purple and Orange fuses to create dramatic new levels of sonic realism, featuring wall-to-wall, floor-to-ceiling sound staging with unparalleled resolution, dynamics, and frequency extension. Best of all, most systems will not benefit from more than one or possibly two Master Fuses in an otherwise complete loom of Purple and or Orange fuses. So, you start with a single Master Fuse on your DAC or line conditioner and realize guaranteed results or your money back for the first 30 days. You can then experiment sparingly with additional Master Fuses if you wish to go further. The choice is yours. Check out the video below and hear for yourself.

Price: Global MSRP $595.00 all sizes. Synergistic Research MASTER Fuses are available in many variants - small (5x20mm), large (6.3x32mm), fast blow (F), slow blow (T) and UK-Plug fuses.

Note: If you are switching from an Orange or Purple fuse to a Master fuse, start by inserting the Master fuse in the same direction as the fuse being replaced. If the Master fuse is not an immediate improvement, flip the Master fuse in the alternate direction.

CLICK HERE for more information or to place your order.
As a business we have to collect 8% TAX from buyers in California.


NEW: Rick Becker of Enjoy the Music writes (September 2023):
"...the Master fuse is an Olympic jump in both price and sound quality over Synergistic Research's Purple fuse. Using a combination of generic and Purple fuses, my system achieved a huge and undeniable improvement with the addition of only a single Master fuse in a source component...if $595 seems like too much for you, I urge you to take a leap of faith and trust your own ears within your audio system. The 30-day money-back guarantee is there to protect you. Don't be afraid to use it if you're not satisfied. From what I've seen and heard since the pandemic, this should be the hottest product in high-end audio..." CLICK HERE to read the entire review.

NEW: John van Pole of concluded (August 2023):
"...Synergistic Research's Master Fuse is a breakthrough product in accessories for high end audio systems. Dedicated music lovers owning a precious system and demanding dynamic, refined and realistic reproduction of their music, really shortchange themselves by not trying the Master Fuse. With a few Master Fuses, you get a lot more out of your system; it's that simple..." CLICK HERE to read the entire review

"...I have Purple fuses installed in all of my components and have been very happy with the benefits that those provide. I was skeptical that the Master Fuse could deliver the level of improvement that SR claims. But I was very pleasantly surprised once I installed this in my Lumin U2 Streamer. Everything was instantly improved and not by a small margin. Voices and instruments seemed real in a way that I had never heard from a digital stream. The sound stage was wider and deeper with much greater separation between the instruments and complex passages with lots of instruments were much less congested. $600 seems a crazy amount of money to pay for a fuse, but I think I would need to upgrade nearly every single component in my system to achieve a similar level of improvement..." 

"...this fuse is incredible and will unlock the full potential of your gear. I put this fuse in the power supply of my Cayin HA300MK2, of which is an excellent TOTL 300B Headphone Amp, and it took things to a completely different level. The detail, texture and imaging all improved substantially and the bass is thunderous and tight with holographic staging that seems to fill my entire room and make my headphones seemingly disappear. I had previously upgraded from an Audio Magic M1 and the SR Master is quite a step up in all regards. If you want the best fuse available, that will improve your system so much it sounds as if you have upgraded a major component, the SR Master is the one to get..." 

" system has purple SR fuses throughout and I rate these fuses very highly.. I replaced the fuse in my DAC with a Master Fuse. The synergy with the other SR fuses was wonderful. Everything that the purple fuses bought to the sound remained untouched (if you like these fuses you will know what I mean). To this the Master fuse added a wonderful clarity and resolution that allowed me to hear deeply into the music without losing any of the emotional connection. This wasn't a subtle change, it was apparent after the first couple of days and continued to get better for well over 600 hours (I stopped counting at that point). These fuses aren't cheap by any means but in my opinion they are well worth the price. SR knocked this one right out of the ball park! Highly recommended!"

"...the revealed detail from SR’s new master fuse is astounding. I put it in my Ayon CD35s in which I was already using SR’s purple fuse. The improvement was palpable. And after it’s fully broken in, it will sound even better!"

"...this fuse is incredible and worth every penny. I have a full loom of SR Purple Fuses mostly bought from Highend, so when the Master came along I knew I had to try it, 30 day trial anyway. I put it in my power conditioner and it easily gave me a component level upgrade with increased imaging, timbre and realism in spades. Completely outclassed my $700 and my friend's $2500 Chinese fuses..."

"...every aspect of the sound (clarity, details, dynamics, soundstage, bass, mid and high frequencies) got pushed to a totally different level and now really brings the maximum out of every single tuning step as well shows the full capabilities these high level components in my system have hidden so far. The sound was never so crystal clear with soo much air around and absolutely nothing stands anymore between the speaker and you in your listening position. It seems like this Master Fuse is just putting everything together..."

Where should I use my Master fuse(s)?
To get the most out of our Master Fuses, we suggest starting with one or two fuses in most systems, and possibly more for highly resolving systems. There is no "wrong" component to start with; however, we typically recommend starting "upstream," at the beginning of your signal source (Music Streamer, CD Player, Turntable, Reel to Reel, etc.). From there, we suggest moving on to your digital-to-analog converter or phono-stage (if you use one), followed by your preamplifier and then your power amplifier. If you have multiple sources, upgrading the fuse in your preamplifier first can improve the performance of all of your sources."

How fuses alter the sound of your system.
For over one hundred years people believed electrons flowed like water through a pipe and that once ‘contaminated’ by miles of wire, there was little or nothing that could be done to ‘clean’ the electricity feeding your components. Consider this: the electricity feeding your system’s components first propagates through a single fuse. This is why significant gains in sound quality are possible when you insert an SR Purple or Master Fuse into each of your components.

Today physicists understand electrons don’t flow at all but rather propagate in a wave of energy that moves along a conductor with a multitude of factors that alters this wave at the quantum level. To understand how electricity travels without electrons ever leaving their respective atoms it is helpful to consider the spectator ‘wave’ at a football match. Even though you can clearly see a wave pattern moving from spectator to spectator as fans raise and then lower their hands (without hands jumping from one person to the next), so too does electricity ‘move’ without electrons ever leaving their atoms.  Synergistic Research isolated key factors that affect how electricity propagates by changing the behavior of electrons through Inductive Quantum Coupling methods SR collectively calls UEF Tech. In fact, UEF Tech is so powerful even an electrical chain several miles long is fundamentally improved with nothing more than a single fuse engineered with SR's patented UEF Technology.

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