Avalon Acoustics AVALON ASCENDANT manual Rationale

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9.2 Rationale

There is an old saying, "There's no such thing as a free lunch." There are many trade-offs in speaker design, as in almost any area one can think of. In this case, the trade off is between transient response and anechoic frequency response (the speaker's frequency response in an anechoic chamber). Almost all manufacturers have chosen to sacrifice transient response for improved anechoic frequency response.

At Avalon Acoustics, we have chosen to pursue a goal of complete freedom from resonances and stored energy to ensure transient accuracy. Although this results in a slight sacrifice in one traditionally measured area, we feel that the resulting gain in areas not traditionally measured results in audibly superior overall performance.

Anechoic Frequency Response vs. In-Room Frequency Response

It must be remembered that very little listening actually takes place in anechoic chambers. Placement of the speakers in a real-world listening room will boost the bass response of the speaker, as explained in Section 8, Room Acoustics and Speaker Placement, beginning on page 19. Since a loudspeaker with perfectly flat anechoic frequency response will exhibit a low-frequency boost in a normal listening environment, a loudspeaker with a gradual bass roll-off (in an anechoic chamber) can exhibit more accurate in-room frequency response. Avalon Acoustics loudspeakers are carefully designed taking these factors into account. When placed in a variety of representative positions in the room, Avalon loudspeakers will produce deep, accurate, and unexaggerated bass response, with complete freedom from stored resonant energy.

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Contents Page Page Table of Contents Page Introduction Contents Unpacking InstructionsIntroduction Opening the Crate Installing the Grilles Orientation of the Felt Anti-Diffraction MaskReplacing Grille Pins Page Wiring Instructions Connecting the Speaker to the AmplifierBreak-in Period Break-in Speaker Placement and SymmetryMaximizing Performance Grille AssembliesToe-in Apex CouplersFirst Reflection Points Corner TreatmentCare of Your Avalon Loudspeakers CabinetWarranty Warranty StatementPage Room Acoustics and Speaker Position IntroductionAn Optical Analogy Standing Waves Flutter Echo Early ReflectionsAvoiding Early Reflections Page Bass reinforcement Page Summary of Recommendations Speaker Placement Listening Room Example Accuracy of Bass Reproduction Sensitivity to Time-Related InformationRationale Anechoic Frequency Response vs. In-Room Frequency ResponseMeasurements of Audio Equipment Correlation with Amplifier MeasurementsLoudspeaker Measurements Designing for Accurate Bass ReproductionListening Qualities Frequency Response EffectsListening for Size Distortions Conclusion Transient Response EffectsFeatures Specifications