Stax is a Japanese brand known for producing high-quality electrostatic headphones and earphones.

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The recent passing of Anthony H. Cordesman at the age of 84 marks the end of a remarkable chapter in both the realms of national security analysis and high-fidelity audio criticism. Cordesman, renowned for his incisive and comprehensive work, leaves behind a legacy that spans several decades, influencing policies, strategies, and the audiophile community alike. His contributions to national security, particularly through his role at the Center for Strategic and International Studies (CSIS) where he held the Arleigh A. Burke Chair in Strategy, underscored his expertise and commitment to understanding complex global issues. His analysis and insights into various international conflicts and defense strategies earned him widespread respect and recognition, including accolades such as the Department of Defense Distinguished Civilian Service Award.

Beyond the sphere of geopolitics, Cordesman was equally passionate about the world of high-end audio. His reviews and articles, featured in prestigious publications like Stereophile and The Absolute Sound, were celebrated for their depth, clarity, and nuanced understanding of audio equipment. His ability to discern and articulate the intricacies of sound reproduction helped guide countless audiophiles in their pursuit of acoustic excellence. Cordesman's dual interests might seem disparate at first glance, but both were underpinned by a meticulous attention to detail and a relentless pursuit of clarity—whether in the clarity of sound through speakers or the clarity of insight into international relations.

Cordesman's educational background, with a Ph.D. from the University of London, and his professional experiences, including his advisory role to Senator John McCain and his analysis of the Yom Kippur War, highlight a career dedicated to both knowledge and service. His intellectual journey was not confined to a single domain; instead, it traversed the complex landscapes of military strategy and audio fidelity, reflecting a multifaceted personality that sought to understand and improve the world in multiple dimensions.

As the audiophile and national security communities reflect on Cordesman's vast contributions, it is clear that his work will continue to inspire future generations. The intersection of his passions for sound quality and strategic analysis serves as a reminder of the profound impact one individual can have across seemingly unrelated fields. Anthony H. Cordesman's legacy is a testament to the power of intellectual curiosity and the enduring value of comprehensive analysis and critical thought in both understanding the world and appreciating the nuances of human experience through sound.

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Anthony H. Cordesman, Esteemed Security Analyst and Audiophile, Dies at 84

Remembering Anthony H. Cordesman: a tribute to his unparalleled contributions to national security analysis and the audiophile world


Electrocompaniet has recently introduced the AW 300 M Mono Power Amplifier, showcasing its commitment to high-fidelity audio with this latest addition to their lineup. Designed as a mono-only amplifier, the AW 300 M is not just an embodiment of updated, yet unmistakable Electrocompaniet design, but it also offers seamless integration with both current and legacy products from the brand.

**Key Features of the AW 300 M:**

-   **Power and Performance**: The AW 300 M delivers 300 Watts into an 8Ω load, and is capable of producing 600 Watts into a 4Ω load and 1000 Watts into a 2Ω load. This power output is contained within a compact design, showcasing the amplifier's efficiency and adaptability.
-   **Innovative Design**: The amplifier features Electrocompaniet’s direct-coupled high open-loop bandwidth topology, now enhanced with high slew-rate and extended bandwidth amplifier stages. This design allows for an exceptionally low distortion rate, ensuring audio purity.
-   **Advanced Power Supply**: The power supply has undergone significant enhancements, featuring 110,000 uF supply filtering and meticulous DC and RF noise filtering. An 800VA toroidal transformer, combined with upgraded wire gauge transformer and effective shielding, minimizes interference.

**Technical Specifications:**

-   The AW 300 M boasts an input impedance of 330 kΩ and a frequency response ranging from 0.5 – 220 kHz with an active input filter, and 0.5 – 1.1 MHz with the input filter disabled. It offers a voltage gain of 29 dB for mono, balanced input, ensuring precision in audio amplification.
-   The signal-to-noise ratio stands at 95 dB for a 1W/8Ω load and 120 dB for full power output, highlighting the amplifier's clarity and efficiency.
-   The dimensions of the AW 300 M are notably compact for its capability, measuring 212 mm in width, 488 mm in depth, and 292 mm in height, making it an attractive option for various setups.

**Conclusion:** The AW 300 M Mono Power Amplifier, priced at €13,500 per unit in Europe and £12,100 per unit in the UK, represents a significant advancement in Electrocompaniet’s product line. It is designed for audiophiles seeking a powerful, high-quality audio experience in a sleek and modern package. The AW 300 M stands as a testament to Electrocompaniet's expertise in blending innovative audio technology with user-friendly design, offering an unparalleled auditory experience.

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Electrocompaniet AW 300 M: A New Era of Mono Power Amplification

Electrocompaniet AW 300 M Mono Power Amplifier, blending high-fidelity performance with compact design. Experience unparalleled audio with innovative topology and advanced power supply


Creating acoustic panels at home is a highly rewarding DIY project that offers both financial savings and a chance to tailor your acoustic solutions to the unique characteristics of your space. This comprehensive guide is designed to walk you through the process of creating these panels, from the initial planning stages to the final touches of assembly. Whether you're an audiophile, a recording enthusiast, or simply looking to improve your listening experience, this guide will provide the insights and step-by-step instructions you need.

## Introduction to Acoustic Panels

Acoustic panels play a vital role in improving the sound quality within a room. They work by absorbing sound waves, reducing echo, and minimizing unwanted reverberations. This can significantly enhance the clarity of sound in home theaters, recording studios, or even in a living space. The beauty of DIY panels lies in their customization – allowing you to choose materials that not only perform well acoustically but also blend seamlessly with your room’s aesthetics.

## Materials and Tools Needed

-   **Absorbent Material:** The effectiveness of an acoustic panel largely depends on the absorbent material used. Fiberglass and mineral wool are popular choices due to their high density and excellent sound absorption properties. The thickness and density of these materials can be tailored to the specific acoustic needs of your space.
-   **Wood for Frames:** The frame holds the absorbent material and gives the panel its structure. Pine is a lightweight and easy-to-work-with option, while MDF offers a denser and more solid construction. The size and thickness of the frame will dictate the amount of absorbent material it can hold, affecting the panel's overall acoustic performance.
-   **Fabric:** The fabric is the visible part of the panel, so its aesthetic and acoustic properties are crucial. Acoustically transparent fabrics allow sound waves to pass through without significant reflection or absorption. Common choices include lightweight linen, muslin, and burlap. The fabric should also complement the room's design and color scheme.
-   **Basic Tools:** Accurate cutting and assembly require tools such as a saw (hand saw or circular saw), a staple gun for attaching the fabric, a measuring tape for precision, scissors for cutting fabric, and a drill for assembling the frame.
-   **Safety Considerations:** Safety is paramount, especially when working with materials like fiberglass. Use protective gear such as gloves and masks. Additionally, consider fireproofing the fabric with a spray, especially if you're using fiberglass insulation, to add an extra layer of safety.

## Measuring and Cutting

-   **Room Analysis:** Start by analyzing your room to determine the optimal size and number of panels. Use a sound meter app or simply clap in the room to identify areas with excessive echo or reverberation. This will guide where and how many panels you'll need.
-   **Designing Your Panels:** Once you have an idea of the number and placement of the panels, design their size. Common dimensions are 2x4 feet or 4x4 feet, but you can customize this based on your space.
-   **Cutting the Frame:** Precision is key when cutting the wood for the frame. Measure twice and cut once to ensure all pieces are of equal length and the corners are at right angles. Sand the edges for a smooth finish, preventing any fabric tears during assembly.

## Assembling the Frame

-   **Frame Construction:** Assemble the cut pieces into a rectangular or square frame based on your design. Use screws or nails for joining the pieces. For added stability, especially in larger panels, consider reinforcing the corners with L-brackets or corner braces.
-   **Inserting the Absorbent Material:** Cut the absorbent material to fit inside the frame. It should be slightly larger than the frame for a snug fit. Avoid compressing the material too much, as this can reduce its sound-absorbing efficiency.
-   **Securing the Material:** Once the material is in place, you can optionally cover the back of the panel with a thin layer of fabric or paper to protect the insulation and provide a clean look from the back.

## Choosing and Attaching the Fabric

-   **Selecting the Right Fabric:** The fabric's acoustic transparency is critical. Test this by blowing through the fabric; if air passes easily, it's a good choice. The fabric should also align with your room's aesthetic. Lightweight linen, muslin, and burlap are popular for their breathability and wide range of designs.
-   **Covering the Panel:** Lay the fabric on a flat surface and place the frame (with the absorbent material) on top of it. Ensure there is enough fabric around the edges to wrap around to the back.
-   **Stapling the Fabric:** Begin by stapling one side of the fabric to the back of the frame. Then stretch the fabric to the opposite side, ensuring it is taut and free of wrinkles, and staple it. Repeat for the remaining sides, working from the middle outwards to the corners for an even finish.

## Mounting the Panels

-   **Determining the Best Location:** Placement is crucial for optimal sound absorption. Common areas include first reflection points, behind speakers, or on opposite walls. Use your room analysis to decide the most effective locations.
-   **Mounting Techniques:** Depending on the panel weight and wall type, you can use brackets, picture hangers, or adhesive strips for lighter panels. Ensure the mounting method is secure and won't damage your walls.

## Community Insights and Professional Tips

-   **Effectiveness of DIY Panels:** Community discussions often highlight that with the right materials and construction, DIY panels can match the performance of commercial ones. The key factors are the quality of the absorbent material and the precision of the build.
-   **Cost Considerations:** While DIY can be more cost-effective, the true savings depend on the materials used and whether you already have the necessary tools.
-   **Safety Precautions:** Always prioritize safety, especially when working with fiberglass. Wearing protective gear and using fireproof materials can prevent accidents.

### Conclusion

Building your own acoustic panels is a fulfilling project that can significantly enhance the acoustic quality of your space. This guide has walked you through each step of the process, from selecting materials to mounting the panels. By following these instructions, you can create custom panels that not only improve sound quality but also add a personal touch to your room's decor. Remember, the effectiveness of these panels is not just in their construction but also in their placement and the quality of materials used. With patience and attention to detail, you can achieve professional-level acoustics in your own space.

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DIY Acoustic Panels: A Step-by-Step Guide

Home Studio Soundproofing: Crafting Acoustic Panels Yourself

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Anthony H. Cordesman, Esteemed Security Analyst and Audiophile, Dies at 84

Electrocompaniet AW 300 M: A New Era of Mono Power Amplification

DIY Acoustic Panels: A Step-by-Step Guide