LEAK, a brand with deep roots in the history of audio innovation, was established by Harold Joseph Leak in 1934 in London, England. Known for its high-quality audio components, LEAK carved out a reputation for affordability combined with high performance, a hallmark that defined the brand for decades.

Harold Leak, identifying himself as a 'Sound Engineer – Technician,' alongside Ted Ashley, who became Chief Engineer, propelled LEAK to the forefront of the home audio equipment market. Together, they led the company through an era of significant technological advancements in amplifiers, loudspeakers, pickups, and turntables.

The mid-20th century was a transformative period for LEAK, as the brand navigated the challenges of wartime disruption to focus on developing purposeful audio technology. Post-war, the emphasis shifted towards high-fidelity systems, marking LEAK's entry into an era of low-noise, high-performance products that gained international acclaim.

A pivotal moment came in 1945 with the introduction of the LEAK Type 15 amplifier, which featured innovative 'negative feedback' and 'push-pull' triode connected KT66 valves, achieving an impressive 15 watts output. This product laid the groundwork for the brand's reputation in high-fidelity sound reproduction.

The late 1940s and 1950s saw LEAK introducing groundbreaking products like the TL/12, which became a standard for high-fidelity sound, and embarking on marketing campaigns that directly compared live versus reproduced music, showcasing the superior quality of LEAK systems. These efforts culminated in LEAK's products being adopted by prestigious institutions like the BBC.

Innovation continued with the introduction of the LEAK Sandwich loudspeaker in 1961, a design that utilized a novel approach to reduce vibrations and resonance, leading to more dynamic audio reproduction. This period also saw the development of the LEAK Stereo 30, a transition to transistor amplifiers that offered a more accessible price point to a broader audience.

Despite its innovations and contributions to the audio industry, LEAK faced challenges from global competition and changing market dynamics, eventually leading to the brand's acquisition by the Rank Organization in 1969 and a gradual fade from the forefront of the audio market.

After years of dormancy, LEAK was revived by the IAG Group, bringing the brand back to the market with a focus on blending classic styling with modern audio technology, ensuring LEAK's legacy continues for new generations of audiophiles.

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The Leak Sandwich 250 represents a landmark achievement in the realm of sound reproduction, building upon a legacy that started in 1961 with the original Leak Sandwich. With a commitment to blending tradition with progressive innovation, these speakers are designed to meet the exacting standards of audiophiles worldwide. The incorporation of a fantastically rigid Leak sandwich cone diaphragm, first introduced in the 1960s and now refined with modern materials, sets a new standard for low distortion and accurate sound reproduction. The diaphragm's construction, featuring a stiff aluminum skin bonded to a core of polymethacrylimide (PMI) foam, ensures unparalleled rigidity and a smooth frequency response over a broad range.

The construction of the Leak Sandwich 250's cabinet is equally innovative, benefiting from six decades of technological advancements. Combining MDF and composite materials in a layered 'sandwich' configuration, the cabinet's design optimizes strength and acoustic performance, featuring intelligent bracing and a distinctive design that pays homage to the original. The aesthetic appeal of the Leak Sandwich 250 is undeniable, with a real-wood walnut veneer, aluminum trim, and carefully chosen grille cloth that complement the classic Leak styling.

Beyond its physical construction, the Leak Sandwich 250 introduces advanced sound engineering innovations. The high-frequency driver is specially designed with a damped rear chamber, reducing resonant frequency and seamlessly integrating the bass, mid, and high frequencies for a detailed and harmonic audio experience. The inclusion of a high-quality crossover, developed through extensive listening tests, further enhances sound quality. To ensure optimal presentation, the Leak Sandwich 250 is paired with a precision-measured plinth, offering a seamless and aesthetically pleasing setup that enriches the listening experience without compromise.

Sandwich 250


MoFi Electronics has announced the release of its latest high-end audio equipment, the MasterDeck Turntable, designed by the acclaimed Allen Perkins. This reference-grade turntable, priced at $5,995, is poised to set a new standard in vinyl reproduction.

Crafted with meticulous attention to detail, each MasterDeck is hand-assembled in limited batches in Ann Arbor, Michigan, ensuring unparalleled quality control. The turntable features a state-of-the-art 10-inch dual-pivot carbon-fiber tonearm, allowing for precise adjustments and friction-free tracking. This advanced tonearm supports a wide range of cartridges and includes premium internal wiring from Cardas Audio for optimal sound quality.

A highlight of the MasterDeck is its three-speed selection, accommodating 33, 45, and 78 RPM records. It also includes a fine-tuning trim adjustment for precise playback speed, crucial for achieving accurate and faithful audio reproduction.

The MasterDeck's performance is further enhanced by its sensor-regulated motor. Equipped with a three-phase brushless DC drive, it offers exceptional stability and precision in rotational speed. The motor's isolated design plays a critical role in producing clear and accurate sound, free from interference.

Another key feature is the turntable's anti-vibration feet, designed by Harmonic Resolution Systems (HRS). These feet provide exceptional isolation from environmental vibrations and feedback, ensuring stability and clarity in audio output.

The MasterDeck showcases a 1.75-inch thick Aluminum-Delrin hybrid platter, designed to reduce resonance and provide a stable base for vinyl playback. This design choice is crucial for maintaining the purity of the audio signal.

With its combination of innovative design, advanced engineering, and high-quality materials, the MoFi MasterDeck Turntable is set to become a coveted item among audiophiles and vinyl enthusiasts seeking the ultimate listening experience.

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MOFI's MasterDeck's Anti-Vibration Tech Transforms Vinyl Listening

MoFi's MasterDeck: Revolutionizing vinyl playback with anti-vibration technology for unparalleled sound fidelity.


Stepping into the realm of high-quality sound without the usual marketing fluff, let's talk about what makes Fyne Audio's F700SP series, particularly the F702SP and F703SP models, stand out in the crowded speaker market. It's not just about the fancy terms or the hefty price tag; it's about what these speakers actually do to make your music listening experience something special.

First off, these speakers come with something called IsoFlare drivers. Imagine having a speaker that throws sound at you from a single point, blending different tones perfectly to make music sound more natural and lifelike. That's what these drivers aim to do. It's like the vocalist or the guitar player is right there in the room with you, not scattered around.

Then there's this cool feature known as the BassTrax porting system. Ever felt like the bass in some speakers just doesn't feel right or fills the room properly? This system is designed to spread out the bass in a 360-degree pattern, making it smoother and more integrated into your space. It's about feeling the depth of the music without it being too overpowering or muddy.

The technical side also gets pretty interesting with the F700SP series. These speakers undergo a process called deep cryogenic treatment, which is a fancy way of saying they freeze the crossover components to relieve stress. This supposedly makes the sound clearer and more transparent. They also pack in some high-quality internal components like ClarityCap capacitors and Neotech wiring, aiming to keep the audio signal as pure as possible.

Design-wise, they didn't hold back. Available in finishes like Piano Gloss Black, White, Walnut, and a satin Natural Walnut veneer, these speakers are made to be both a feast for the ears and the eyes. Plus, they have these heavyweight aluminum plinths that not only look good but help in sound dispersion too.

Now, for the elephant in the room – the price. The F702SP and F703SP models are definitely on the higher end, with price tags of £11,999.99 and £14,999.99 respectively. It's a hefty investment, but for those who are serious about their audio, it might just be worth considering.

In essence, the F700SP series from Fyne Audio is about bringing high-end, detailed, and immersive sound to those who are willing to pay for that premium listening experience. It's not just about the specs or the luxury finishes; it's about how all these elements come together to make your favorite tracks sound the best they possibly can.

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How Deep Cryogenic Treatment Elevates the F700SP Series to Audiophile Heaven

Fyne Audio is a manufacturer of high-quality loudspeakers for audio systems.

Fyne Audio

The BassTrax technology in Fyne Audio's F700SP series offers a revolutionary listening experience with smooth, room-filling bass.

The F702SP by Fyne Audio stands as a pinnacle of their ongoing pursuit of acoustic perfection, embodied in an elegantly designed floorstanding speaker. Crafted by hand in the UK, this model boasts a sophisticated 200mm IsoFlare driver from the F1-8, which benefits from an enhanced HF waveguide that ensures a smoother frequency response. This advanced driver is set within the celebrated and award-winning F702 cabinet that is uniquely configured with twin cavities and utilizes the BassTrax LF diffuser for superior bass distribution.

Improvements do not halt at mechanical design; the crossover circuitry of the F702SP has undergone a significant redesign. Through the use of computational modelling coupled with exhaustive auditory trials, the circuitry has been finely tuned. It now includes high-quality Claritycap capacitors and Neotech PC-OCC wiring, which work in tandem to deliver an exceptionally pure signal transfer. The commitment to preserving audio integrity is further evidenced by gold-plated WBT Nextgen 0703 terminals and a specialized cryogenic treatment process, aimed at maintaining the fidelity of every sonic detail.

Supporting its superior sound technology, the F702SP is anchored by a robust aluminium base. This base is outfitted with M12 threaded support cones, providing the speaker with unparalleled stability. This feature not only enhances the physical steadfastness of the speaker but also contributes to its ability to deliver articulate and powerful audio performance. Ideally suited for medium to large-sized rooms, the F702SP offers an auditory experience that is both immersive and expansive, reflecting Fyne Audio's reputation for producing cutting-edge audio solutions.

F702SP

The F703SP is a refined version of the original F703 from Fyne Audio, integrating advanced technology from the F1 Series into its design. Crafted in Scotland, this floorstanding speaker boasts a 250mm IsoFlare point source driver, similar to that found in the F1-10, and is enhanced with a robust Neodymium HF magnet system and a 3” titanium dome. This configuration ensures a dramatic reduction in distortion and a smoother frequency response across the board. The reinvention of the crossover network in the F703SP demonstrates meticulous engineering, with optimization achieved through comprehensive computer modeling and critical listening tests. High-quality components such as Claritycap capacitors and Neotech PC-OCC wiring are utilized to maintain signal integrity and transparency.

Enhancements do not stop at internal components. The terminals of the F703SP feature superior gold-plated WBT Nextgen 0703 connectors and the crossover benefits from a unique cryogenic treatment performed in Fyne Audio’s own facilities, which further refines signal clarity. Stability is paramount in a speaker of this caliber; thus, it is equipped with a robust F1 grade machined aluminum platform with M12 threaded support cones. This base not only grounds the speaker solidly but also aids in the precise articulation of low-frequency details, making every listen a deeply engaging experience. The combination of sophisticated design, high-quality materials, and meticulous engineering makes the F703SP a powerhouse that captures the essence of pure audio performance.

F703SP


In the realm of high-fidelity audio, creating an acoustically pleasant environment is as paramount as having high-quality audio equipment. Sound absorption plays a vital role in achieving this objective by minimizing unwanted reflections and reverberations that can muddy the sonic clarity. This article explores the science of sound absorption and delves into the acoustic properties of various materials, shedding light on their effectiveness in room treatment.

**The Mechanism of Sound Absorption**
Sound absorption is a phenomenon where acoustic energy is transformed into heat as it strikes a material. The efficacy of this process is determined by the material’s acoustic impedance, a measure of resistance against the propagation of sound waves. A material with an acoustic impedance that closely matches that of air is generally more effective at absorbing sound.

**Different Materials and Their Sound Absorption Capabilities**
Various materials exhibit distinct sound-absorbing properties, primarily influenced by their density, thickness, and porosity. Let's dive into some of these materials:

## Fiberglass Panels

Fiberglass panels are known for their excellent sound-absorption properties, particularly in the mid to high-frequency range. These panels are manufactured from fine fibers of glass that are woven intricately into a mat. This porous structure enables them to trap sound waves effectively, reducing echo and reverberation in a space. Besides their acoustic advantages, fiberglass panels are lightweight, easy to install, and come in various sizes and thicknesses to suit different applications.

Technical Specification: The Noise Reduction Coefficient (NRC) of fiberglass panels ranges between 0.70 to 1.20, indicating a high sound absorption efficiency across a significant frequency range.

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## Rockwool

Rockwool, made from spun minerals and basalt rock, is revered for its broad spectrum sound absorption capabilities. Its dense, fibrous structure allows it to capture sound waves efficiently, making it a preferred choice for soundproofing in various settings including home theaters, studios, and industrial sites. Moreover, Rockwool is fire-resistant and water-repellent, adding to its desirability as a sound-absorbing material.

Technical Specification: With a Noise Reduction Coefficient (NRC) ranging from 0.90 to 1.10, Rockwool demonstrates a strong ability to absorb a substantial portion of incident sound energy.

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## Foam Panels

Foam panels, especially those of open-cell design, are effective in taming higher frequency sounds. They provide an affordable and easy-to-install solution for treating spaces with sound reflection issues. However, their effectiveness diminishes as the frequency lowers, making them less suitable for addressing low-frequency sound problems.

Technical Specification: The NRC of foam panels varies from 0.20 to 0.80, contingent on factors like density and thickness.

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## Bass Traps

Bass traps are specialized acoustic treatments designed to control low-frequency sounds. They are crucial for rooms with boomy acoustics and are typically installed in corners where low-frequency build-up is most pronounced. Bass traps come in various designs, including resonant absorbers and porous absorbers, each catering to specific low-frequency issues.

Technical Specification: Bass traps are effective in the frequency range of 50 Hz to 500 Hz, significantly mitigating low-frequency reverberations.

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## Perforated Wood Panels

Perforated wood panels marry aesthetic elegance with acoustic functionality. They are effective in treating mid to high-frequency sounds, with the degree of sound absorption being influenced by the size and pattern of perforations. These panels are ideal for environments where both visual appeal and acoustic comfort are desired.

Technical Specification: The NRC of perforated wood panels varies between 0.60 to 0.90, influenced by the perforation dimensions and pattern.

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## Effective Room Treatment
 
Understanding the sound-absorbing properties of materials is critical for effective room treatment. By strategically placing sound-absorbing materials in a room, one can significantly improve the acoustical environment, rendering a cleaner, more defined sound output.

**Conclusion** 
The journey towards impeccable sound quality is multifaceted, with sound absorption being a cornerstone. A deep understanding of the acoustic properties of various materials and their strategic placement within a space can substantially enhance the auditory experience, bringing one closer to the elusive goal of true high-fidelity sound reproduction.

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Analyzing Material Sound Absorption: A Path to Acoustic Harmony

Material sound absorption is a pivotal step towards high-fidelity sound reproduction. Understand the technical and practical aspects of various sound-absorbing materials to enhance sonic clarity and acoustic comfort.

Sandwich 250

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Analyzing Material Sound Absorption: A Path to Acoustic Harmony