Synergistic Research Master Fuse

Master Fuse

The one fuse to rule them all.

Master Fuse is an entirely new kind of Fuse. In the past, we developed the highest resolution fuse given the current technology while voicing our 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, we have applied them to the next generation of cutting-edge fuses, usually every two years. Of course, we were striving for maximum resolution plus the warmth needed for most systems to sound musical. But we never could press resolution and other sonic traits as far as we could have. Enter Master Fuse; the first Synergistic Research fuse developed expressly for full resolution, dynamics, soundstaging, speed, and impact without the need to create musicality as a system-wide fuse loom. Instead, we 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 soundstaging 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.

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 Master fuse being replaced.  If the Master fuse is not an immediate improvement, flip the Master fuse in the alternate direction.

We’re so sure you’ll love what the SR Pink and Master fuses do for your system, we sell them with a no questions asked, 30-day money back guarantee so you can audition SR Fuses in your system risk-free. Then if you’re not 100% satisfied with your system’s performance on SR Pink and Master fuses, return the fuses to your dealer in like new condition for a full refund.

Available Values:

5mm x 20mm Slo-blow

5mm x 20mm Fast-blow

100mA
160mA
200mA
250mA
315mA
500mA

630mA
800mA
1A
1.25A
1.6A

2A
2.5A
3.15A
4A
5A

6.3A
8A
10A
12.5A
16A

50ma
160mA
200mA
250mA
500mA

800mA
1A
1.6A
2A
2.5A

3.15A
4A
5A
6.3A

8A
10A
12.5A
16A

6.3mm x 32mm Slo-blow

6.3mm x 32mm Fast-blow

250mA
500mA 800mA 1A 1.6A

2A
2.5A
3.15A
4A

5A
6.3A
8A
10A

12.5A
15A
16A
20A

13A UK Main

Frequently asked questions.

Q: Are fuses directional?

A: Yes, fuses are directional.  Electricity should flow from the left to the right when you view the fuse.  If you do not know the direction of flow you should listen to the fuse inserted in both directions.  One direction will sound more detailed.  This is the correct way.

Q:  Do fuses have a burn in period?

A: Yes, most products have a settling in period.  The first 200-300 hours of use are the most crucial.

Q: Where should I use my Master fuse(s)?

A: 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 phonostage (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."

Master Fuses

A/B recodings

We recommend listening with your high-end headphones or download the hi-rez audio files to listen through your audio system.  In-home auditions are available from your Synergistic Research dealer.

Download to listen on your high resolution audio system

Master Fuse in Berkeley DAC – Download
Purple Fuse in Berkeley DAC – Download

Enjoy the Music

2019 Great Audiophile Gift

“After returning home from the Toronto Audio Fest 2019, I dropped my familiar compilation CD into the tray and listened to the Orange fuses that had been burning in for four days. My rig, which previously had Synergistic Research Blue fuses and is priced in the tens of thousand dollars, was sounding like rigs I heard at the show that cost in the low hundreds of thousands. That’s all the math you need to know. Start with your source if you’re skeptical, and work your way through to the amps. The plans to upgrade my speakers are on hold, indefinitely.”  Ricker Becker

View

2020 Great Audiophile Gift

The ORANGE Fuse is Synergistic Research’s latest and greatest version of their extremely popular UEF Blue Fuse. In fact the Blue fuse earned Enjoy the Music.com’s 2018 Great Audiophile Gift recommendation. If you are one of the thousands of SR Fuse users, than you already know what an improvement the tiny devices add to your electronic’s performance.

2021 Great Audiophile Gift

And with the lower noise floor comes more inner detail, macro, and microdyamics. The soundstage expanded in the sense that voices and instruments farther away became more intelligible. There was a tremendous improvement of clarity within the soundstage. Instruments and singers up front did not mask what was going on behind them. The venue of live recordings became a lot more real — both room tone and audience applause.