SUPRA Sword Excalibur – Simply the best
Sword Excalibur received incredibly good reviews by the Swedish magazine Hifi&Musik, read the review here (Goggle translate).
For 2 years we have been developing our ultimate speaker cable. The result: Sword Excalibur.
Our goal was to make the world’s best speaker cable, with no compromises or shortcuts. Every part of the design must be of the highest quality while still affordable and as usual manufactured in Sweden.
Bifilar-wound litz 5N OFC conductors, twisted and shielded for minimal interference, PE insulation, CNC-milled cable splitter with ground connection, XL-Annorum earth conductor, solid copper rhodium-plated connectors. The Supra CombiCon CB03-EX crimp bodies are specially designed for Excalibur, and each conductor is twisted into the crimp body for maximum bending strength. The uninsulated litz wires are crimped mechanically for a perfect and airtight cable connection. The connector body has a Supra M6 thread, which allows the user choice of interchangeable rhodium-plated Supra spades or banana/BFA pins. The ground connections are by 30cm long, Supra XL-Annorum conductors, and use specially adapted, rhodium-plated Supra CombiCon connectors.
In the past, we modestly claimed that our original Sword was one of the best cables available, regardless of price or manufacturer. Sword Excalibur takes a few more steps towards total transparency, still the only words that properly describe this patented high-end speaker cable.
The secret? The bifilar-wound litz conductors comprise 24 individually insulated strands per conductor, 12 wound in one direction, the remaining 12 in the opposite, resulting in magnetic field cancellation and very low inductance. Further, this reduces any possible dynamic skin-effect. Sword Excalibur behaves as a low inductance cable whilst maintaining phase throughout the entire audible frequency range resulting in minimal insertion loss between amplifier and loudspeaker. The only thing not cancelled is the SOUND, allowing you to hear every nuance of the MUSIC, in it’s full dynamic glory.
The earth conductor should be connected in the source end only (amplifier side).
What does it sound like?
The best way to describe it is nothing, but that is hard to imagine, so we will try to explain. Sword will maintain the true signal put out from your Hi-Fi system, giving a completely transparent transition from amplifier to speaker. You will hear the music, nothing more, nothing less.
We only sell Sword pre-terminated!
The reason is that the transition between the cable and connectors is very critical. In order to maintain the superior cable and contact properties, we have reached the conclusion to keep this in-house. We crimp the unit together at high pressure, making a perfect, air tight, joint.
It is supplied in an exclusive black wooden Box comprising both Rhodium plated banana and spade connectors. We simply could not resist an extra treat for this remarkable cable.
|Conductor crossection area||3 / 12||mm2 / AWG|
|Strand numbers per conductor||12 + 12||pieces|
|Conductor material||Enameled oxygen free Copper|
|Halogen free / Flame retardant||No|
|Banana/BFA||Yes, with CombiCon Rhodium|
|Spade (Fork)||Yes, with CombiCon Rhodium|
|Cable connection||Airtight high pressure crimp|
|Resistance||5.2||Ohm / km|
|Inductance||0.25||uH / m|
|Phase dislocation||0.96||cos φ (0.5-100kHz)|
|Phase error||0||° (20 Hz - 20 kHz)|