Specifications

Owners manual
A good listening room has just the right amount of reflection and absorption. The
performance of any loudspeaker depends upon the speaker's location in the room and
the acoustical conditions in that part of the room. Furnishings, size, and proportions all
effect tonal balance, imaging, and bass characteristics.
To test the sonic balance of your room, stand in the location where the speakers will
be installed and clap your hands two or three times. If the room is reverberant, you will
hear a sharpness or echo. If the room is dull, the sound of the clap will decay rapidly
and there will be little or no echo.
Large areas of glass, mirrors, or wood panelling will reflect sound waves and often
result in brittleness and extreme brightness. You can correct this by breaking up these
sound waves with softer surfaces like draperies or wall hangings. Try to create random
reflections. Put a lot of time into the placement of the speakers. Experimenting with
this will be well worth the effort.
Every room is shaped and decorated differently, and is therefore presents unique
requirements for the positioning of loudspeakers. Your loudspeakers will function at
their best when placed on a flat, stable surface.
The space between the loudspeakers should be free. Ideally, the space should be
symmetrical in the area around the loudspeakers. We recommend experimenting with
the placement of your loudspeakers in order to obtain the best balance, openness, and
perception of depth. The bass loudspeakers should be placed quite near the main
speakers on the outside of them if possible (see picture 1).
The Coltrane Supreme loudspeaker system should be no closer than 70 cm (27.6 Inch)
from the rear wall.
The main loudspeakers should not be placed close to a side wall, as reflections from
these can disturb the depth of the sound image. The bass towers however can be
placed quite near the side walls since you can adjust the level and phase at the
amplifier/crossover.
At the back of the Coltrane Supreme amplifier/crossover you will find controls for level
and phase for the bass. For start positioning set the controls as picture 2 if the
loudspeaker is placed similar to picture 1. After that you can adjust the level and phase
to your liking.
Due to their highly advanced technology, the Coltrane Supreme loudspeakers will
deliver excellent imaging, even at a relatively close listening distance. The distance
ultimately depends on the room’s shape, size, and your listening taste. Please use
track 2 of the enclosed CD as a guide to focusing the sound image.
The goal is to have balanced sound. Ideally, you should be able to place the recorded
voice in the middle of your speaker arrangement. Ultimately, the shape, size, and
furniture in the listening room all influence the end result, so take some extra time to
experiment with the position of the loudspeakers.
The loudspeakers should normally be toed in toward the listening area to focus the
sound. The amount of toe-in will depend upon your listening preferences and the room
environment and dimensions.
Room Acoustics
Loudspeaker Placement
Distance to back and side walls
Adjusting the level and phase
Focusing the Loudspeakers
Toe-in
Positioning
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