Avalon Acoustics OPUS Ceramique Loudspeaker manual An Optical Analogy, Basic Room Acoustics

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An Optical Analogy

Let us use a visual analogy to aid our understanding of acoustics. Imagine that you are in a room that is lit only by a candle in its center. There is (approximately) a uniform amount of light cast in all directions. If a large mirror is held closely to candle, one half of the room becomes darkened, while the other half receives twice as much light. This is because there are effectively two candles now illuminating that half of the room, the real candle, and the virtual (or reflected) candle. The energy that had been sent to both sides of the room has now been concentrated in one side only.

If we repeat the same experiment using a large piece of black cloth instead of a mirror, the results will be somewhat different. The side of the room behind the cloth is darkened, just as before, but the level of light on the side of the candle remains unchanged. This is because the light is absorbed by the cloth, rather than being reflected back into the room.

Thus we can see that the energy can either be absorbed or reflected. A similar situation occurs with sound waves, although we must account for the much greater wavelengths of audible frequencies. Of course no material is a perfect absorber or an absolute reflector. Furthermore, the sonic absorption coefficient of a given material usually varies with frequency.

Basic Room Acoustics

The great majority of all listening rooms are rectangular, with parallel surfaces. The walls and ceiling are typically hard surfaces, which are acoustically reflective. These large areas are the predominating factors in the overall room acoustics, although the other items in the room (furnishings, carpeting, wall hangings, doorways, etc.) will also play a role. Without going into excessive detail, there are four primary areas of potential concern:

•1. Standing waves.

•2. Flutter echo.

•3. Early reflections.

•4. Bass reinforcement.

The first three items are problems which should be reduced or eliminated. The last item, bass reinforcement, needs to be matched to the entire system for proper tonal balance.

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Contents Music al Master piec es Page Table of Contents Features Introduction Unpacking Instructions ContentsIntroduction Opening the Crate To unpack the loudspeakersInstalling the Grilles Orientation of the Felt Anti-Diffraction MaskReplacing Grille Pins Insertion of new grille pin into installation toolPage Connecting the Speaker to the Amplifier Wiring InstructionsDo not over-tighten the screws From Amplifier Break-in Period Maximizing Performance Speaker Placement and SymmetryGrille Assemblies Toe-In Apex CouplersFirst Reflection Points Corner TreatmentCabinet Hardwood Finish Grille AssemblyCare of Your Loudspeakers DriversWarranty Event of a ProblemWarranty Statement Page Room AcousticsandSpeaker Position An Optical Analogy Basic Room AcousticsStanding Waves Flutter Echo Early Reflections Avoiding Early Reflections Angle X Angle Y Reflected Sound DirectSound Bass reinforcement 100 200 500 Page Summary of Recommendations Flutter Echo and Standing WavesSpeaker Placement Early ReflectionsListening Room Example Accuracy of Bass Reproduction Sensitivity to Time-Related Information Fast BassRationale Anechoic vs. In-Room Frequency ResponseMeasurements of Audio Equipment Correlation with Amplifier MeasurementsLoudspeaker Measurements Designing for Accurate Bass Reproduction Frequency Response Effects Listening for Size DistortionsTransient Response Effects Conclusion Features Specifications

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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