Børresen T1 Silver Supreme Edition

BØRRESEN T1 SILVER SUPREME EDITION

With its Silver Supreme Edition speaker, Børresen ensures a transparent and authentic musical performance. The aesthetic design of the cabinet and stand makes the speaker appear as a piece of art in itself. The Silver Supreme edition is the flagship among Børresen models.

HIGHLIGHTS

• Frequency range 50Hz - 50KHz
• Sensitivity 86 dB / 1W
• Impedance 6 ohms
• Recommended amplifier >50W
• Cryo treatment ✓
• 1 x Tweeter Børresen RP94 Ribbon Planar Tweeter

• Bass/Midrange 5" Børresen IronFree5 driver

TECHNOLOGY AND DESIGN

Børresen has replaced the copper rings in the speaker with handmade silver rings, specially designed by Børresen himself. This reduces the inductance significantly. The inductance in Børresen speakers is already approximately 10 times lower than in conventional models, but in the Silver Supreme Edition it is a full 12 times lower. All metal components undergo a cryogenic treatment, which further reduces the inductance by 6-8%. The result is a clean, clear and refined sound image, placing the Silver Supreme Edition in the absolute high-end and setting a completely new standard.

CRYOGENESIS TREATMENT ENSURES PURE SOUND

Børresen uses cryogenic treatment of all metal parts of the speaker to ensure further significant improvement in conductivity. When metal parts undergo cryogenic treatment, they are exposed to extreme cooling. In this process, the metal structure contracts more and more. Alloying elements are pushed out of the grain structure of the metal, which now becomes very similar to a single crystal. The result is that the metal component becomes stronger, the internal stress during solidification from liquid to solid is reduced, and the conductivity increases.

All metal parts of these speaker series undergo cryogenic treatment. The cryogenic treatment cycle requires a time window of 3 days. Within the first 24 hours, the metal undergoes a cooling process from room temperature to cryogenic temperatures. Over the next 24 hours, the metal parts are held at temperatures around -196°C (-321°F) before the temperature gradually returns to room temperature over the next 24 hours. The gradual cooling and heating is essential to avoid thermal stress. The process strengthens and compacts the grain structure of metal parts and reduces the inherent residual stress that occurs when metal solidifies from its liquid phase to a solid phase.

Bass/midrange diaphragm

The diaphragm is designed to achieve maximum stiffness with minimal noise. In the Silver Supreme Edition, the diaphragm consists of two layers of very thin carbon on either side of a 4 mm Nomex honeycomb core. This composite structure is the same as that used in Formula 1 racing cars. It represents the ultimate combination of stiffness and weight ratio. The exceptionally low weight of only 5.5 grams enables a very high acceleration factor in the driver, resulting in both outstanding resolution and higher efficiency.

Crossover O-series

The Børresen Silver Supreme Edition speakers are equipped with a serial crossover configuration, which means that the drivers share the same electrical current in the crossover area. The electrical signals going to the speakers are thus "phase-locked". This creates a more coherent and harmonious sound experience. In standard parallel filtering, each driver receives its own frequency and phase content. The Børresen approach reduces signal distortion and improves the overall coherence of the sound, so you are left with a acoustic pleasure.

For the crossover filter, we have made great efforts to source the best and most sophisticated components of the highest quality. The coils for the crossover filter are foil types, wound with paper insulation and impregnated with resin under vacuum to make them mechanically extremely solid and stable.

For the crossover capacitors, Børresen uses arrays of small military-spec stack-foil types. They have the best mechanical stability and lowest inductance of any type of capacitor on the market (and they sound great, too). For the tweeter damping resistors, they use metal strip types, as they have by far the lowest noise figures and also a very low thermal variation.

The cabinet

The Børresen speaker cabinets are built with heavy-duty reinforcements and pressed wood, beautifully veneered in walnut and equipped with solid walnut inserts. The cabinets combine the best of Danish furniture design tradition with stylish shapes, originally created by the late Franco Serblin of Sonus Faber. The tweeter section is vented to balance air pressure, while the bass sections are equipped with tuned ports calibrated to musically relevant frequencies.

Ansuz Darkz for better relaxation

Ansuz Darkz decouplers are designed to provide significantly improved mechanical decoupling of the speaker cabinet from the stand and floor. Ansuz Darkz consists of three discs separated by three titanium ball bearings. They are available in four different alloys, which provide different levels of resonance control depending on the desired sonic result. There are three holes in the surface of the top plate of the stand, which contain the built-in Darkz resonance control decouplers between the speaker and the plate. The stand feet are designed to sit on individual Darkz decouplers, which can be selected according to need.

Tesla Coil Principle

The Tesla coil principle is based on the use of two coils wound in opposite directions – a coil and a counter coil. When the Tesla coil encounters a voltage spike, a counter spike is activated to eliminate the noise. This method is effective because noise spikes carry only pure voltage and almost no charge, making the noise cancellation very effective. By adding multiple P-TC coils in parallel, the efficiency increases and the perceived "blackness" of the music is significantly improved. Ansuz Tesla coils are available in different types and complement each other in terms of strengths and weaknesses.

Anti-airborne resonant coil technology

All cables and cable assemblies act as antennas for airborne RF noise, which can be a major problem. The passive Tesla coil is wrapped around the outer part of the cable and protects the signal from absorbing this RF noise. This noise is absorbed in the Tesla coil and noise peaks are effectively eliminated. When current flows in the conductor and it is wound in the opposite direction, it acts as a counter-coil and the RF noise is then eliminated.