Neumann KH 120 D, KH 120 A Quick Start Guide
Getting Started Quickly
Place the loudspeakers at the correct angle
(ITU-R BS.775-1)
-30°
-100°
-110°
-120°
For 2-channel stereo use ±30°
0°
30°
Place the loudspeakers at the same distance
r
120°
110°
100°
For 7.1 high denition systems
(no international standards)
-30°
-90°
-150°
0°
30°
150°
Delay closer loudspeakers by 30 µs/cm (76
Use the furthest loudspeaker a reference
t
r
di
r
1
del
90°
µs/inch)
= 30 µs * (r2-r1)
Listening
position
Small near-eld systems:
= 4 m (12')
r
max
= 1 - 2 m (3 - 6')
r
typical
r
= 0.75 m (2.5')
min
Horizontal: Point loudspeakers at listening position
Delays:
r
di
5 cm (2") 150 µs
10 cm (4") 300 µs
20 cm (8") 600 µs
50 cm (20") 1.5 ms
1 m (3') 3 ms
t
del
r
2
ref
Symmetrical loudspeaker and object placement in the
room improves stereo imaging, d
d
1
d
2
d
3
,d
1
2,d3
d
1
d
2
d
3
Use the acoustical axis as a reference
GEORG NEUMANN GMBH · LEIPZIGER STR. 112 · 10117 BERLIN · GERMANY
TEL +49 (0)30 / 41 77 24 -0 · FAX -50 · HEADOFFICE@NEUMANN.COM · WWW.NEUMANN.COM
Keep back wall distance as
long as possible, d
4
d
4
09/14 · 540493/A02
Getting Started Quickly
Acoustical axis and cabinet orientation
Use acoustical axis
as a reference point
y
17
cm
cm
Recommended cabinet
orientation for a wide
usable listening area
Not recommended cabinet
orientation, except for fixed
listening positions
Distance from the wall
9.1 cm
x cm
Acoustical controls
Bass = -5 dB
Against a wall
In a corner
Near a desktop
Free standing
Vertical plane: Point the loudspeakers at the listening position.
Avoid objects between the loudspeaker and listening position.
d
wall
So :
Soft:
Small:
Large:
Live:
Dead:
Bass = -2.5 dB
Bass = -7.5 dB
Low-Mid = -1.5 dB
Low-Mid = -1.5 dB
Low-Mid = -3 dB
Treble = -1 dB
Bass = -2.5 dB
All 0 dB
f
n
Full Range Loudspeakers
Bass Managed Loudspeakers
Subwoofers
Avoid d
Avoid d
Avoid d
= 0.8 – 2.0 m
wall
= 0.8 – 1.0 m
wall
= >0.8 m
wall
d
wall
Arranging the desktop: uncluttered and symmetrical
Avoid reflections for a smooth midrange
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