Neumann KH 420 Getting Started

Place the loudspeakers at the correct angle
(ITU-R BS.775-1)
-30°
-100°
-110°
-120°
For 2-channel stereo use ±30°
Place the loudspeakers at the same distance
Listening
position
Horizontal: Point loudspeakers at listening position
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
Getting Started Quickly
0°
30°
100°
110°
120°
r
Small near-field systems:
r = 4 m (12')
max
r = 1 - 2 m (3 - 6')
typical
r = 0.75 m (2.5')
min
For 7.1 high definition systems
(no international standards)
-30°
-90°
-150°
Delay closer loudspeakers by 30 s/cm (76 s/inch)
Use the furthest loudspeaker as a reference
Delays:
r t
di del
5 cm (2") 150 s
10 cm (4") 300 s
20 cm (8") 600 s
50 cm (20" 1.5 ms
1 m (3') 3 ms
Symmetrical loudspeaker and object placement in the
room improves stereo imaging, d
d
1
d
2
d
3
Keep back wall distance as
long as possible, d
4
0°
30°
90°
150°
t = 30 s (r
*
del 2
r
di
r
1
r
2
ref
, d
1 2 3
d
1
d
2
d
d
4
04/14 – 554622
-r )
1
3