Avalon Acoustics OPUS Ceramique Loudspeaker Specifications

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104. Carefully pull the grille cloth away from the frame mounting hole. The mounting holemust be clear of all obstacles during pin installation.5.

113 Wiring InstructionsIntroductionThe crossover is housed in a sealed, non-accessible chamber in the bottom of the speakercabinet, to minimiz

12Figure 3.1 - Bottom view of the speakers showing the connections from the amplifierto the loudspeaker. Check to insure the correct polarity (positiv

134 Break-in PeriodYour new Avalon Acoustics loudspeakers have an initial break-in period. They will notperform to their full sonic poten

145 Maximizing PerformanceThese details are imperative to obtaining optimum results from your Avalon Acousticsloudspeakers.Break-inThe break-in peri

15Toe-InAdjusting the toe-in angle of the speakers is useful in tailoring the sound to best match thecharacteristics of your system and listening room

16First Reflection PointsSince the ear/brain system tends to integrate the sounds arriving within a 10 millisecond timewindow, it is important to

176 Care of Your LoudspeakersCabinet (Hardwood Finish)Avalon Acoustics’ hardwood finished loudspeakers are supplied with a special polish and twolint

187 WarrantyYour Avalon Acoustics loudspeakers are warranted against defects in workmanship andmaterials for a period of five years,!

19Warranty Statement1. Avalon Acoustics warrants the materials, workmanship, and proper functioning of thisproduct for a period of five y

206. The above warranty is the sole warranty given by Avalon Acoustics, and is in lieu of allother warranties. All implied warranties, including warra

218 Room Acoustics and Speaker PositionIntroductionThe listening room forms the final link of the playback system, as important as any othercompo

22An Optical AnalogyLet us use a visual analogy to aid our understanding of acoustics. Imagine that you are in aroom that is lit only by a candle in i

238.1 Standing WavesThe parallel surfaces of most listening rooms can lead to a potential problem in the lowfrequencies. A sound wav

248.2 Flutter EchoThese parallel, reflective surfaces can also produce a different audible problem. If there islittle absorption at higher frequenci

258.3 Early ReflectionsAnother situation that can reduce the subjective quality of reproduced sound is the presence ofearly reflections. By early ref

26Avoiding Early ReflectionsThe speed of sound is approximately one foot (30 cm) per millisecond. Therefore, to preservethe natural soundstage on your

27Since the floor is within 5 feet of the speaker, it is best to have a carpeted floor to absorb floorreflections. A thick, dense carpet and pad will

288.4 Bass reinforcementBy bass reinforcement, we mean the effect of the room boundaries on the propagation ofsound. It is widely known that sp

29As frequency increases and wavelength becomes more similar to the distance to the boundary,the phase difference between original and reflected w

Table of Contents1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30There are typically three reflective surfaces near each speaker: the floor, the rear wall, and theside wall. Each of these surfaces produces its own

318.5 Summary of RecommendationsNow that we have looked at some of the common problems of listening rooms, as well astheir cures, let us summarize ou

32Speaker PlacementAlthough your Avalon Acoustics loudspeakers may be placed in a wide variety of positionsrelative to the walls of the room, it is st

338.6 A Listening Room ExampleIn order to make these points more clear, an example of a room layout is given in Figure 8.5,illustrating the principle

349 Accuracy of Bass ReproductionIntroductionWe have all had the experience of listening to speakers with poor bass quality. Perhaps thebass was mudd

359.1 Sensitivity to Time-Related InformationIt is widely known that the human ear/brain system is extremely sensitive to time-relateddistortion

369.2 RationaleThere is an old saying, "There's no such thing as a free lunch." There are many trade-offs inspeaker design, as in almo

379.3 Measurements of Audio EquipmentIt should be recognized that measurements are not the final arbiter of sound quality of audiocomponents. Often t

38Loudspeaker MeasurementsReturning to loudspeakers, a similar situation has developed. Although nobody listens tomusic in an anechoic c

39Designing for Accurate Bass ReproductionHow, then, does one arrive at the goal of a loudspeaker that provides tonal accuracy in thelistening room? T

9 Accuracy of Bass Reproduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40Frequency Response EffectsAs you listen to music, images of the instruments that created the sounds are elicited. Forinstance, one can tell the

41Transient Response EffectsA speaker with poor transient response will store energy, releasing it after the initial musicaltransient has passed. This

429.4 ConclusionMost loudspeakers have been designed to perform well in the frequency domain whenmeasured in an anechoic test chamber.

4310 Features•Advanced ultra-light weight ceramic driver diaphragm materials minimize energystorage and time-domain distortion.•Each driver individ

4411 SpecificationsDriver Complement 1" concave ceramic dome tweeter3 1/2" concave ceramic dome midrange9" concave ceramic dome woofer

4512 Notes

51 IntroductionThe Opus Ceramique was conceived as an alternative to our award winning originalOpus. Designed specifically for moderate

62 Unpacking InstructionsIntroductionYour Avalon Acoustics loudspeakers were shipped in a heavy-duty crate to ensure their safearrival. It is recomm

72.1 Opening the CrateThe crate features a one-piece top assembly which is fastened to the crate bottom with screwsaround the lower perimeter. To unp

82.2 Installing the GrillesThe grille assemblies are behind a panel on the outside of the speaker crate. Remove thescrews securing the p

92.3 Replacing Grille PinsThe grille pins installed on the grille assemblies are fragile and can be easily damaged.Should any of the pin