8.5 Summary of Recommendations

Now that we have looked at some of the common problems of listening rooms, as well as their cures, let us summarize our findings and recommendations.

Flutter Echo and Standing Waves

These situations are the result of the room having parallel, reflective surfaces. The potential problems are independent of the audio system, and need to be addressed at the source. This means that at least one surface in an opposing pair of surfaces needs to be made less reflective and/or non-parallel.

•Low Frequency Absorption

If a problem exists with standing waves, it is the low frequencies that will need to be addressed. Remember that the absorption spectrum of different materials and objects is not uniform. That is, some items will absorb only high frequencies, and some objects may only absorb the middle frequencies. At low frequencies, about the only common item that can absorb a meaningful amount of energy is heavily upholstered furniture. Another effective means of absorption is the use of Tube-Traps, from Acoustic Sciences Corporation.

•High Frequency Absorption and Room Symmetry

Since flutter echo is a high-frequency effect, it becomes much easier to manage potential problems in this area. Almost any item attached to the walls will be less reflective at high frequencies than the bare walls themselves. Draperies, wall hangings, paintings, bookshelves and other items will normally be present in the room, and will usually eliminate any possible problems. If flutter echo is still audible, a fabric wall hanging provides an effective and attractive cure.

Additionally, it is desirable to maintain a degree of left/right symmetry in the room to preserve a balanced acoustic "space". For example, if your listening room has full length draperies along the right wall, and the left wall is bare, slap echo will not be a problem. Nonetheless, the sound-stage may be somewhat distorted, and it could be beneficial to place a fabric hanging or tapestry on the wall opposite the draperies.

•Parallel Surfaces

Although it is not generally possible to make the walls non-parallel, the same effect is achieved by breaking up the large, flat surfaces with furniture and shelving.

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Avalon Acoustics OPUS Ceramique Loudspeaker manual Summary of Recommendations, Flutter Echo and Standing Waves
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OPUS Ceramique Loudspeaker specifications

Avalon Acoustics is renowned in the high-end audio industry, and their OPUS Ceramique Loudspeaker exemplifies their dedication to exceptional sound quality and innovative design. This speaker is a perfect blend of artistry and advanced engineering, making it a coveted choice among audiophiles.

One of the key features of the OPUS Ceramique is its sophisticated driver configuration. It utilizes a three-way design, which is engineered to deliver a full spectrum of sound with impressive clarity. The loudspeaker is equipped with a 10-inch ceramic bass driver capable of deep, powerful low frequencies, ensuring that every note resonates with depth. Complementing this are dual midrange drivers made from advanced ceramic materials, which provide rich and warm mid tones. Finally, for the highs, the OPUS employs a unique ribbon tweeter designed for exceptional detail and an extended frequency response, offering a natural and airy sound that brings music to life.

The cabinet design of the OPUS Ceramique is as remarkable as its internal components. It features a rigid construction that minimizes resonance and cabinet coloration, ensuring that the sound remains pure and true to the source. The elegant curves of the speaker not only enhance its aesthetic appeal but also contribute to better acoustic performance by optimizing the dispersion of sound waves.

Another prominent technology incorporated in the OPUS Ceramique is its advanced crossover network. The crossover is meticulously engineered to ensure a seamless transition between the drivers, allowing for coherent sound reproduction across all frequencies. This means that listeners can enjoy an immersive soundstage where instruments and vocals are clearly delineated, creating a more engaging listening experience.

In addition to its acoustic prowess, the OPUS Ceramique is designed with the audiophile in mind. It is highly customizable, with various finishes available to suit any decor. The attention to detail extends to every aspect of its construction, providing both aesthetic beauty and functional performance.

Overall, the Avalon Acoustics OPUS Ceramique Loudspeaker stands as a testament to the brand's commitment to delivering extraordinary sound and elegance. With its innovative technologies and exceptional build quality, it continues to be a sought-after choice for discerning music lovers seeking the ultimate audio experience. Whether used in a dedicated listening room or as part of a high-end home theater system, the OPUS Ceramique promises to elevate any audio experience to new heights.
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