Neumann KH 310 D, KH 310 A Quick Start Guide
Getting Started Quickly
Place the loudspeakers at the correct angle
(ITU-R BS.775-1)
0°
C
L
-30°
-100°
-110°
Ls
-120°
For 2-channel stereo use ±30°
30°
R
110°
120°
100°
For 7.1 high definition systems
(no international standards)
0°
C
-30°
L
-90°
Ls
Rs
-150°
Lb
30°
150°
R
90°
Rs
Rb
Place the loudspeakers at the same distance
r
Listening
position
Small near-field systems:
= 4 m (12')
r
max
= 1 - 2 m (3 - 6')
r
typical
= 0.75 m (2.5')
r
min
Large mid-field systems:
= 8 m (24')
r
max
= 2 - 4 m (6 - 12')
r
typical
= 1.5 m (5')
r
min
Delay closer loudspeakers by 30 s/cm
s/inch)
(76
Use the furthest loudspeaker as a reference
t
del
Delays:
r
diff
t
del
5 cm (2") 150 s
10 cm (4') 300
20 cm (8') 600
50 cm (20") 1.5 ms
1 m (3') 3 ms
r
diff
r
1
r
2
s
s
= 30 s * (r2-r1)
ref
Horizontal: Point loudspeakers at listening position
C
L
Ls
R
Rs
Symmetrical loudspeaker and object placement in the
room improves stereo imaging, d
C
L
d
1
d
2
d
3
Ls
1,d2,d3
R
d
1
d
2
d
Rs
3
d
Keep back wall distance as
Use the acoustical axis as a reference
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long as possible, d
4
4
Getting Started Quickly
Acoustical axis and cabinet orientation
Use acoustical axis
as a reference point
y
cm
Recommended cabinet
orientation for a wide
usable listening area
Not recommended cabinet
orientation, except for fixed
listening positions
x cm
Acoustical controls
Against a wall
In a corner
Near a desktop
Free standing
Solid:
Soft:
Small:
Large:
Live:
Bass = -5 dB
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
Distance from the wall
f
n
Dead:
All 0 dB
Vertical plane: Point the loudspeakers at the listening position.
Avoid objects between the loudspeaker and listening position.
d
wall
Sub
d
wall
Full Range Loudspeakers
Bass M anaged Loudspeakers
Subwoofers Avoid d
Avoid d
Avoid d
= 0.8 – 2.0 m
wall
= 0.8 – 1.0 m
wall
= > 0.8 m
wall
Arranging the desktop: uncluttered and symmetrical Avoid reflections for a smooth midrange
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