Storgaard & Vestskov FENJA
EAM Lab. CLASSIC 250M
The PURIFI Tweeter Project
The PURIFI Tweeter Project – Part 1
https://purifi-audio.com/blog/tech-notes-1/the-purifi-tweeter-project-part-1-15
YG Acoustics XV 3 Signature crossovers
XV 3 Signature
$498,000 limited to 8 pairs
The first is a breakthrough in capacitor design with a special copper alloy foil and advanced dielectric, offering a level of performance previously thought unattainable.
The second is a meticulous pursuit of perfection at the smallest scale: each pair undergoes a detailed tuning process over many weeks at our R&D facility, personally overseen by Dr. Webster. Driven by iterative measurement, modeling and listening, custom crossover components are built for each pair, carefully tuned and matched to deliver the very highest possible performance. Every change is subtle: often a fraction of one percent of the component value. Yet together, the result is incredible.
1 つ目は、特殊な銅合金箔と高度な誘電体を使用した画期的なコンデンサ設計で、これまで達成不可能と考えられていたレベルの性能を実現します。
2 つ目は、細部に至るまで完璧さを追求することです。各ペアは、ウェブスター博士が直接監督する当社の研究開発施設で、何週間にもわたって詳細な調整プロセスを経ます。反復的な測定、モデリング、リスニングに基づいて、各ペアのカスタム クロスオーバー コンポーネントが構築され、慎重に調整および調整されて、可能な限り最高のパフォーマンスが実現されます。すべての変更は微妙で、多くの場合、コンポーネント値の 1 パーセント未満です。しかし、すべてが合わさると、結果は信じられないほど素晴らしいものになります。
Vitus Audio & Avalon Acoustics Event at Martins Hi-Fi
Dates: Friday 7th and Saturday 8th June 2024
Times:
10:30 – 19:00 Friday 7th June
10:30 – 17:30 Saturday 8th JuneLocation: Martins Hi-Fi, 85-91 Ber St, Norwich NR1 3EY
Martins Hi Fi and Airt Audio have joined forces to offer you the opportunity to hear a truly staggering, extreme audiophile hi-fi system.
Both Vitus Audio CEO Alexander Vitus Mogensen, and AIRT owner Fraser Robertson will also be in attendance. They will be introducing the systems and are on-hand to answer any of your questions throughout the event.
Book online with Airt Audio: https://bit.ly/3wKL7uV
Franco Serbrin Studio Prezentacja Accordo Goldberg
Davone Reference Two
- Frequency response38 – 30.000 Hz, -3dB
- Impedance4.5 ohm minimum
- Sensitivity87 dB/2,83V/m
- Recommended Amplifer100 watt or more
- Woofer7,5″ Multimodal Textreme membrane with distributed low energy breakup modes
- TweeterFlush mount 1″ Beryllium with extremely light 0.1g dome and a first breakup mode above 40kHz
- Systembass reflex with a linear port
- Cabinet Construction25mm form pressed plywood with acoustic reflectors, low loss bracing and tuned absorber
- Weightxx kg / piece
- Height / Width / Depth97 / 34 / 31 cm
DesignerPaul Schenkel
More than Beryllium
Due to its incredible rigidity, Beryllium represents the ultimate material for a tweeter dome. Where soft domes turn choirs into grain, hard rock into noise, Beryllium can separate the complex harmonics with ease and keep the music clean and precise, also at high listening levels. But we do not stop there. Opting for an unconventional approach, we mount the dome flush with the baffle, as opposed to the typical recessed placement, allowing the dome to unleash its wide off-axis response without obstruction—vital for achieving an expansive, open sound. This unique dome placement is a rarity, demanding meticulous baffle rounding to prevent diffraction and a more intricate crossover design. However, the resulting benefits outweigh the challenges. Complementing this design, we employ an exceptionally narrow surround to eliminate any lingering “soft dome” coloration. With a mere 0.1-gram moving mass and a magnetic flux density of 2.0 Tesla, our high frequencies reach reference-level quality.
A Metamodal Membrane
A what?? Let me explain. The Swedish company Oxeon invented a unique process to produce a very flat uni-directonal fiber tape. A weave made with this tape can be very flat and therefore requires less resin and weighs less compared to a traditional fiber weave. In other words, more carbon fibers can be used for the same weight. In fact, Textreme as it is called, is so stiff that the familiar edge resonance around 1-2 kHz is eliminated. This stiffness usually comes at the cost of severe resonances at higher frequencies which limits the operating range. But by optimising the thickness and stiffness, the Textreme membrane is engineered for a controlled resonant behaviour by distributing the break up modes, a metamodal membrane. These distributed modes, or resonances, are far less severe and the useable frequency range is increased. It is the perfect membrane for a wide range loudspeaker. The sound it produces is entirely free from resonance, delivering an exceptional combination of purity, neutrality, and speed.
the Colour of Sound
String instruments produce a fundamental tone and a vast array of higher harmonics, demonstrating the human ear’s preference for a rich, harmonic sound. Record players and tube amplifiers also introduce harmonics, creating a vibrant and colorful sonic experience, akin to the significant impact of optimal room acoustics. Many loudspeakers also contribute their own tonal character, for example aluminum tweeters often deliver a remarkably open, clear, and transparent sound. However, this pleasing tonal coloring can sometimes overshadow and actually result in timbral deficiency, concealing subtle tones. The Reference One’s Beryllium tweeter, on the other hand, offers a gentler percussion representation, excelling in tone separation and micro-detail reproduction, effectively distinguishing musical instruments in spatial placement. Similarly, the Textreme Carbon midrange exhibits a smooth and well-balanced timbre, unveiling intricate sound micro-textures without introducing any coloration. Consequently, while drivers crafted from simpler materials like aluminum or paper may sound appealing with straightforward music such as classical guitar or solo vocals, the Beryllium and Textreme Carbon drivers transcend these constraints. The Reference One faithfully unveils the full tonal spectrum of even the most intricate musical compositions.
Asymmetric Design
A woofer in a two-way system has to reproduce both middle and low frequencies. This typically leads to unwanted cabinet resonances. Adding damping material would among other reduce low-frequency output, unacceptable in the no-compromise design of the Reference Two. Instead, as a result of a thorough investigation, an asymmetric acoustic design is employed. Inspiration came from the woofer membrane. The slight asymmetry in the chessboard pattern in the membrane helps to distribute the resonances and they become far less severe. A similar approach is used inside the cabinet. Two angled, asymmetrically placed wave reflectors spread the cabinet resonances in the mid range and reduce their amplitude, eliminating the need for damping materials. The low frequency resonance is damped with a highly effective Helmholtz absorber, again limiting the amount of damping. Internal bracing is designed for maximum free airflow to prevent low frequency losses and the bass port entry is located close to the woofer. All these measures collectively result in an effective low-frequency design with minimal unwanted resonances throughout the operating range of the woofer.
The Finishing Touch
A loudspeaker of such exceptional caliber requires a superior finish that mirrors its exceptional sound quality. We’ve meticulously chosen materials to elevate your audio experience, including exquisite quarter-cut walnut veneer, an elegant grille to conceal the bass reflex port outlet, discreetly positioned Davone spikes, and an all-encompassing, meticulous finish. Each material was selected for its practicality and durability, ensuring that you can savor the highest audio quality for years to come.
- Frequency response38 – 30.000 Hz, -3dB
Diretta DST-0 I2S CPU specs
Same as DST-00
Supports two 12V inputs (also works with one)
There are four audio-spec power circuits
Use SPEC’s Ruby Mica capacitors for noise rejection
All switches on board have been eliminated
Adapter for SPDIF conversion
10 MHz external clock is required
A dedicated Fiber Ethernet net converter will be provided
Essenza by Bassocontinuo
Hifirose RD160 D/A Converter
SACD 25th Anniversary
TAD R1TX Limited Edition
Santa Maria Aquamarine:
A luxurious, limited edition color
25 pairs worldwide
This stunning hue, inspired by gemstones, enhances the 3D beauty of the wood grain and changes subtly with light. Crafted with a meticulous 30-step painting process by Tendo Mokko artisans.
サンタマリアアクアマリン
R1TX 限定版
全世界で 25 ペア
宝石にインスピレーションを得たこの見事な色合いは、木目の 3D の美しさを引き立て、光によって微妙に変化します。天童木工の職人による細心の注意を払った 30 段階の塗装工程で作られています。
Sonus faber Suprema in Vicenza Jazz
Burmester New Standard Color: Elegant black finish
Lyravox KARLEMAGNE at home
Wilson Audio WATT/PUPPY
Matrix Audio MS-1
TANNOY Autograph 12 / 70th Anniversary
Gryphon APOLLO TURNTABLE
€153,272.00 （約2600万円）
The Gryphon Black Diamond DLC cartridges
Anything Else Is Second-Best Never before has so much intellectual horsepower been devoted to the service of Analog Playback. The culmination of a once-in-a-lifetime collaboration between Soren Slebo of The Gryphon Design Team, Turntable Legend Helmut Brinkmann, Cartridge Master Ortofon and the Aarhus Technical Institute, Apollo by Gryphon is more than a turntable: it is a seminal event in the history of High End Audio. Building the world’s finest analog playback system required the world’s most revered turntable designer: Helmut Brinkmann, the Stradivarius of turntable design. For more than four decades, Brinkmann turntables have been universally praised for their heirloom build quality, aesthetic beauty and most of all, their shockingly lifelike musical presentation. Helmut’s designs for his own company, while brilliant, have always been price constrained. With Apollo, he has had the opportunity to create his “Dream Turntable” without compromise. The Drive Apollo utilizes two of Brinkmann’s proprietary, hand-built Sinus™ Belt Drive Motors placed at 180-degrees from each other, straddling the massive platter. While the benefits of multiple motors—increased torque, reduced “Cogging” effect and lower stress on each motor—are well-known, overcoming the potential problems of dual motor design required a great deal of ingenuity. Not only is Apollo Helmut’s first multi-motor turntable, it is also the first ‘table for which he developed a digital speed controller. Helmut has always considered speed control the “Secret Sauce” of turntable design and this unprecedented digital controller is his masterpiece. In addition to synchronizing the two motors, Apollo’s digital control is more accurate than analog equivalents and will never require calibration; at the same time, Brinkmann’s techniques for “Soft” motor control, painstakingly refined over more than 40 years of turntable design, further distance Apollo’s speed controller from those of all other turntables. Based on Brinkmann’s third-generation RöNt power supply technology, Apollo’s bespoke supply employs the proprietary BZ 34 “Tube Rectifier Simulator” developed for RoNt. Semiconductors replace the RoNt’s tubes and the Apollo units also have a higher output current, enabling two motors to optimally driven. A fully discrete, mechanicallyand electrically separated power source with a dedicated transformer supplies the bearing heater and platter light. Apollo’s Industrial Design, authored by Gryphon’s Soren Slebo, combines visual beauty with ideal rigidity and resonance control. Exploiting the strengths of constrained layer damping, Apollo’s chassis is based on a laminated “sandwich” construction of anodized aluminum, Kerrock, and “Smart Stack,” a damping compound patented by Denmark’s MENETA Group. Apollo’s considerable mass rests upon 4 solid, adjustable spikes. The motors are entirely decoupled from the structure, each mounted on its own, optimized subchassis. Apollo Tonearm: Crowning Jewel Brinkmann has traditionally hard-anodized their tonearm tubes due to the material’s very high transmission speed of sound (9.900 m/s), ensuring resonances are evacuated from the cartridge as quickly as possible. To achieve state-of-the-art performance, however, required a solution that was truly cutting-edge: diamond. Thanks to a joint research project with Denmark’s Aarhus Technical Institute, Apollo’s arm tubes are diamond-clad (technically, CrN-SD + DLC-TR), yielding the fastest sound transmission of any known material—18,000 m/s—almost twice as fast as the aluminum oxide used in Brinkmann’s standard tonearms; in fact, Apollo’s diamond tonearm tubes achieve the highest transmission speed possible, ensuring ideal evacuation of cartridge resonance. Perfected through decades of refinement, Apollo’s Cardanic Bearing has been optimized for this application. MC Diamond: Elevating The System Concept To achieve ultimate system synergy, Gryphon worked with Ortofon, the leader in phonograph cartridge technology, to develop a unique transducer whose performance characteristics are specifically tailored to Apollo’s. Starting with the extraordinary MC Diamond cartridge, Gryphon developed a special DLC-TR Coated, SLM Titanium body to match Apollo and then tuned cartridge compliance to be a perfect partner for this tonearm. The result—The Gryphon Black Diamond DLC—is among the finest cartridges available and the ultimate transducer for the Apollo system. The Ultimate Analog System Remarkable on its own, each part of the Apollo system—from turntable to tonearm to cartridge—has been purpose-engineered to perform perfectly with all others. The ability to control all variables during the design phase, combined with brilliant designers and matchless manufacturing capabilities, has yielded an analog playback system unprecedented in High End Audio history. It is not hyperbole to state that, with Apollo, the whole is truly greater than the sum of its state-of-the-art parts.
Sonus faber new Official Technical Partner for Lamborghini, starting with Revuelto.
