Børresen T5 SILVER SUPREME EDITION

Description

BØRRESEN T5
The first member of the forthcoming Børresen T series.
The design philosophy for this series was to create a loudspeaker very close to the M range on performance, but a bit more accessible in price and without making too many technological sacrifices.
The process of designing such a loudspeaker was a task to behold. Michael and his team faced this challenge head on by analyzing individual audio components and materials used in the flagship series. This research eventually allowed the company to achieve the desired outcome in the form of Børresen T5.
Børresen T5 incorporates many innovative technologies from premium Ansuz, Aavik and Børresen products, and all being the result of years spent on intense R&D process. This new loudspeaker product infused with the company’s well-known DNA features some new technologies unlike anything else on the market. Performance very close to the series M at a lower cost is the effect.

Technologies and Components

Titanium Baskets & Optimized Airflow

Børresen IronFree5 Titanium SSE driver
The 5” drivers used in the Silver Supreme Edition version of the T-series loudspeakers feature baskets made of Titanium, which has a remarkable high structural rigidity and damping properties. Our research led us to make use computer-optimized finite element designs (FEM) which allowed us to 3D-optimize the shape of our baskets, so that they don’t obstruct the airflow caused by the membrane’s rear strokes and remain acoustically invisible.

The IronFree8 SSE driver

The Børresen IronFree8 SSE 8”driver, is a refined version of the one developed for the Børresen 0-series. This cryo treated silver supreme driver has got a new membrane in line with the one we us in the M-series. The spread tow membrane which is in a sandwich construction is similar to the M-series but without the extra titanium skin layer. The purpose of this low inductance iron free driver is to add punch in the lower frequencies, while still having the speed to match our RP94 Ribbon planar tweeter – making space for the music to flow effortlessly.

T series Membrane

The membrane consists of three layers, laminated into a single unit: an aramid honeycomb core between two spread tow carbon fiber skins. The combination of these materials results in a moving surface with exceptional properties. Carbon fiber layers provide optimum stiffness in many different directions. The aramid honeycomb core has an excellent stiffness-to-weight ratio in the vertical direction, while graphene and boron whiskers mixed into the epoxy resin that binds the layers together increase the stiffness of crosslinks between carbon fibers. This in turn makes these bonds stronger, so the entire membrane becomes stronger and less noisy, but remains very light.

Cryogenic Treatment for Enhanced Performance

Cryogenic treatment of copper and silver rings in the T-series loudspeakers, along with internal wiring, baskets, crossover coils and tweeter improve conductivity, strength, and overall performance.

When metal components undergo cryogenic treatment, they are subjected to extreme cooling. In the wake of this process, the crystal structure of such a part contract more and more and alloying elements are being pushed out of it, so that it becomes very similar to a monocrystal. These structural changes of a metal component result in its three highly beneficial new traits. It becomes stronger, its inherent residual stress upon going from the liquid to solid phase during casting is reduced, and its conductivity is increased.

The Børresen tweeter

Børresen RP94 Ribbon Planar Tweeter
Elaborate finite element methods have been applied to linearize and optimize the magnetic flux field, to facilitate driver movement and to ensure high efficiency and outstanding linearity.

The efficiency of this closed ribbon tweeter amounts to an exceptional 94dB and operates from approximately 2.5 kHz upwards. The moving mass is extremely low at 0.01 grams. The totally concealed tweeter has the capacity to operate at an incredible speed, which is an absolute prerequisite to unlocking the most subtle and refined sound details of any kind of music. The enormous robustness of this tweeter allows it to handle extremely high transient peaks without any ear fatiguing breakups. No transformers are being used.

Crossover

Serial configuration, coherent system.
Børresen loudspeakers are fitted with a serial crossover configuration. The reason for this is that the drivers share the very same flow of electric current in the crossover region. As a result, the electric current is phase-locked over the crossover region. Unlike standard parallel filtering, where each driver receives its own frequency and phase content, the new serial filters work by diverting out-of-band currents around the current flows, thus creating a much more coherent system. This unrivaled and innovative technological approach takes your music into a new echelon of acoustic delight.

For the crossover filter, we went to great lengths to source the very best and most sophisticated state-of-the-art components. The coils are foil types wound with paper isolation and impregnated with resin under vacuum to make them mechanically extremely solid and stable.

For crossover capacitors, we use arrays of small military spec stack-foil types. They have the best mechanical stability and lowest induction of any type of capacitor on the market (and they sound wonderful, too).

For tweeter attenuation resistors, we use metal strip types since they have, by far, the lowest noise figures and additionally, a very low thermal variation.

Bi-amping

With bi-amping you are able to individually feed the bass section and the bass/midrange section which includes the treble. This not only provides sufficient power to each section, but also results in a cleaner, more precise sound.

This loudspeaker is designed with two types of bi-amping in mind. The first is speaker crossover bi-amping. The frequency between the bass section and the midrange/treble section is optimized, so that it provides best performance.

The second option is active crossover bi-amping, where you can adjust the crossover frequency yourself. This type of crossover is the optimal solution for fine-tuning your speakers according to your listening room’s acoustical properties, allowing you to control the amount of bass and the balance between the bass and midrange/treble. To further enhance your listening experience, Børresen’s sister company, Aavik Acoustics, has developed a high-end Analog Active filter that works seamlessly with these new speaker models, providing the ultimate in precision and clarity. The Aavik active crossover is found in a variety of Aavik amplifiers.

T-Series Cabinet – Advanced Cabinet Design for Superior Performance

The Børresen T-series introduces a combination of high-gloss lacquer and real wood veneers. Thick, block-milled hardwood braces and carbon-fiber reinforcements further improve rigidity and airflow. The rear venting system allows drivers to decompress efficiently, reducing pressure buildup and distortion. This meticulous cabinet design ensures an open, spacious, and highly dynamic sound while maintaining a sleek, modern aesthetic with minimal space requirements.

Internal wiring- Ansuz Gold Signature

Ansuz Gold Signature cables feature by far the most innovative and most advanced audio cable technology, literally paving the way to an extremely clear, natural, and authentic sonic reproduction.

The Tesla coil principle

The principle is to have two coils that are wounded in each direction / a coil and a counter coil. In Ansuz words: “A double inverted coil” – the two coils are both carrying voltage – and when the Tesla coil encounters a voltage spike a counter spike is activated in order to eliminate the noise. As Noise spikes are pure voltage and carries virtually no charge, the cancelation is quite good, but not 100%. By adding more P-TC coils in parallel the performance increases. By implementing this the perceived blackness in the music improves significantly. Ansuz Tesla coils are available in various types as they complement each other in terms of strengths /weaknesses.

Active square Tesla coils

Impressive noise reduction.
The active square Tesla coils are embedded in our circuitry boards – one coil on the top and the counter coil on the rear side. The principle is exactly the same as the active Tesla coil and thus a great ability to eliminate noise than the passive Tesla coils.

Analog dither technology 3rd generation

A 3rd generation of the Ansuz analog dither technology has been developed. Analog dither technology originated in radar, where it ensured a stronger signal and thus greater range. The active Tesla coils send pulsating signals at precisely defined frequencies. These signals are sent in anti-phase. This significantly amplifies the musical signal and eliminates the background noise floor.

Analysis and studies have led to new options – and a lot of listening has resulted in this 3rd generation design which is a further optimization of the most effective frequencies which opens the soundscape even more and with the tiniest details when it comes to reproduction of the recordings.

Anti aerial resonance coil technology

Prevents airborne noise.
All cables and cable screens are acting like antennas for airborne RF noise which of course is a huge problem. The passive cable Tesla coil is wounded on the external part of the cable and protects the signal from absorbing the airborne RF noise. This noise is absorbed in the Tesla coil.

As there is a voltage running in the conductor itself, and it is wounded in the counter direction – this is used as the counter coil and the RF noise is then eliminated.