User Manual

KH 80 DSP | 6
Positioning the loudspeakers
X
Carry out the following steps very accurately, since the more accurate the physical arrange-
ment of the loudspeakers in the room, the more accurate the reproduction will be at the
listening position.
X
Observe the recommended distances between the loudspeakers and your listening position
(imperial dimensions are approximate):
Minimum: 0.50 m (2')
Recommended: 0.8–1.75 m (2'6"–6')
Maximum: 3.0 m (9')
X
Avoid positioning the loudspeaker at a distance “d
wall
” of 0.8 to 1.75 m (2'6"–6') from
the wall behind the loudspeaker. When positioning bass managed loudspeakers, avoid a
distance “d
wall
” of 0.8 to 1 m (2'6"–3') from a solid wall behind the loudspeaker. Similarly,
avoid these distances from solid side walls or a solid ceiling. Respecting these positio-
ning limitations reduces the chances of dips in the low frequency response (comb filte-
ring) caused by strong reflections.
X
Print out the diagram “Installation angles” that can be found at the end of this operating
manual.
X
Place the diagram at the listening position or center of the listening area.
X
Using a tape measure, place the loudspeakers at the same distance from the center of the
diagram “Installation angles”. To ensure good imaging, do this at an accuracy of at least
1 cm (
1
/
2
").
X
If the loudspeakers cannot be placed at the same distance from the listening position, com-
pensate for distance dierences > 1 cm (
1
/
2
") by delaying closer loudspeakers by 30 µs/
cm (76 µs/inch). Delay can be set directly in the loudspeaker using the Neumann.Control
software.
X
Check the location of the loudspeaker cabinet. This depends on the application:
2.0 systems (stereo): ±30°, plus optional subwoofer(s)
5.1 systems:
ITU-R BS.775-1: 0°, ±30°, ±110° (±10°), plus optional subwoofer(s)
(center, front left/right, surround left/right)
ANSI/SMPTE 202M: 0°, ±22.5°, arrays to the surround left and to the surround right,
plus optional subwoofer(s)
7.1 systems: 0°, ±30°, ±90°, ±150°, plus optional subwoofer(s)
(center, front left/right, side left/right, back left/right)
3D systems See the recommendations from Dolby, DTS, Auro3D and
ITU-R BS.2051-0 for loudspeaker positioning.
The acoustical axis of the KH 80 DSP is located at the midpoint of the bass and tweeter drivers.
X
Always point the acoustical axis, in the horizontal and vertical planes, towards the listening
position.
The acoustical axis is a line perpendicular to the loudspeaker’s front panel along which
the microphone was placed when tuning the loudspeaker’s crossover during design.
Pointing the acoustical axis, in the horizontal and vertical planes, towards the listening
position or center of the monitoring area will give the best measured and perceived
sound quality.
X
Position the loudspeaker so that there is a direct line of sight from the listening position to
the bass and tweeter drivers.
Distances
d
wall
Arranging the
loudspeakers
at an angle
x = 7.7 cm
y = 12.9 cm
EN