Synergistic Research SR20 Purple Quantum Audio Grade Fuses

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SR20 PURPLE Quantum are the latest in a range of custom alloy treated, high-end audio grade fuses.

Released October 2021, SR PURPLE Quantum Fuses are a German-built, custom ceramic fuse, made from a unique two-million-volt treated alloy. The product address a commonly-overlooked component in the signal chain which introduces noise at a fundamental level.

What Are Audio Grade Fuses?

Audio-grade fuses offer an extremely cost-effective way to boost the performance of your entire Hi-Fi system, at the precise point where the driving flow of electricity enters the equation. We are extremely confident in the ability of this product to improve the performance of any system, and use them in our London showroom. We think that SR Purple Quantum Audio-Grade Fuses offer a positive contribution towards improving your enjoyment of the music.

Multiple Combinations & Options

SR PURPLE Quantum Fuses are available in over 60 possible combinations of size, response time, and amperage. We're sure you can find the perfect value for your audio system. Use the dropdown selector above to choose:

  • Fuse Dimensions - 5mm x 20mm, or 6.3mm x 32mm (plus 6.3mm x 25.4mm for UK Mains Plugs only)
  • Response Rate - Fast Blow or Slow Blow (plus Standard for UK Mains Plugs only)
  • Amperage - From 50mA to 20A (13A only for UK Mains Plugs)
  • PLEASE NOTE - All SR20 fuses except for 13A Standard UK Mains Plugs are SPECIAL ORDER items, with a lead-time of 3-4 weeks from date of order.

Quantum - Red - Black - Blue - Orange - Purple

SR Quantum Fuses are now available in SIX grades of purity, quality and price:

Synergistic Research

Synergistic Research have developed some of the world's most innovative solutions like PowerCell line conditioners the Acoustic ART room treatments, MiG component resonators, Galileo Universal Cable Cells. The company focuses on a total system approach towards promoting synergy in your system. All aspects of performance are taken into account, because there's more to synergy than just cables & connectors.

SR have also pioneered ground-breaking technologies, including Active Shielding (with air dielectrics) and custom tuneable cables (with Enigma Bullets) to get closer to the music than ever before. Synergistic Research also looked at one most important parts of any music system - the AC wall socket. The quality, structure, and efficiency of the power entering your music system plays a profound role in the musicality and dimensionality of your audio reproduction capabilities.

Delivery and Returns

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Please be advised that we may upgrade your delivery to a better service if we deem it appropriate to designated destinations at no additional cost. Please view our returns policy.
*Quoted delivery times are estimates and apply to normal working days for in stock items.


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Our Advantages

  • Worldwide shipping, fast, insured & tracked. Details
  • Clear, simple returns policy. Details
  • UK-based company, established since 1985. Details
  • Visit our London showroom to demo a huge selection of headphones, earphones & portable players. Details