Acoustic Technologies Classic Series Owner's Manual - Page 4

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The "Classic-Series" loudspeakers deliver the recorded performance with proper corresponding width, depth

and height, commonly referred to as staging and imaging. As you are about to experience for yourself, this

most often results in staging and imaging which extends many feet wide of and behind of the speaker (virtually

eliminating the walls in your room), as well as portraying proportional height information. When set up

correctly these speakers do not have a listening "sweet spot" and will retain a realistically wide, deep, and tall

soundstage in which the performers remain in their virtual positions no matter where you are listening from

within the room.

Basic Placement

We suggest a starting placement of the speakers at 5 ft. (ca. 1.5 m) apart (inner edge to inner edge) and 1.5 ft.

(ca. 0.5 m) to 5 ft. (ca. 1.5 m) from the front wall (the wall behind the speakers). Yes, we understand most

speakers achieve their stage width by their wide placement but this is because they seldom place images

outside their far edges or with much width behind them. As you are about to experience, this is not the case

with our speakers. As mentioned earlier, when set up correctly these speakers do not have a listening "sweet

spot". This may go against all (your) conventional "audio wisdom" and will make you reassess the standard

method of speaker placement and correspondingly of home audio reproduction in general.

But let's start with the basics. The "sweet spot" is that listening position from which the best soundstage

presentation is heard and is most often thought to be a center seat equidistant from each of the loudspeakers.

The most commonly suggested method of achieving this is by the use of an equilateral triangle (triangle with

three equal sides) where each speaker is placed at each corner of the base and the listening "sweet spot" is at

the apex. Since we are starting with a smaller width placement than normal, please start by using an isosceles

triangle instead, that is, set the initial seating position in the center of the speakers but further away from the

speakers than the distance between the speakers.

Width

For evaluation purposes, please start with the speakers facing forward and the width between them at 5 ft.

(ca. 1.5 m) (inner edge to inner edge) anywhere within 1.5 ft. (ca. 0.5 m) to 5 ft. (ca. 1.5 m) from the front wall.

Your listening position should be situated equidistant between them at whatever distance you prefer or are

accustomed to. Please select and play pieces of music that you enjoy and know well. Trust your ears!

Increase the width gradually and repeat the process until you achieve the most musically enjoyable balance of

soundstage and image coherence. Please don't over analyze these placements but do take notice of the