Neumann.Berlin KH 120 D, Руководство по эксплуатации

Страница: 12 / 24

10
| KH 120
The following settings can be used as a starting point for further adjustment:
Loudspeaker position Acoustical controls
Bass
Low-Mid Treble
In a corner
-
7 .5 dB
-
1 .5 dB –
Next to an acoustically solid wall (e .g . brick, concrete) - 5 dB – –
Next to an acoustically soft wall (e .g . gypsum) - 2 .5 dB – –
Free standing in an untreated room - 2 .5 dB – - 1 dB
Free standing in a well-treated room – – –
In a small room with strong side wall reflections
-
5 dB 0 dB –
Near a small desktop or small reflecting surface* – - 1 .5 dB –
Near a large desktop or large reflecting surface* –
-
3 dB –
*
Use these settings in addition to one of the top five settings
Adjusting the acoustic level
X
On your KH 120 loudspeakers, set the output level control (“OUTPUT LEVEL”) to 94 dB SPL
and the input gain control (“INPUT GAIN”) to
- 15 dB .
X
Play a broadband pink noise test signal that is set to
-
18 dBFS (Europe) or
-
20 dBFS (USA)
on the mixing console’s output level meters .
X
Measure the sound pressure level at the listening position using a sound level meter with
the following settings:
• “C”-weighted
• slow integration time
X
Set the output level and input gain controls of your loudspeakers so that the desired acous-
tic level is obtained .
Recommended sound pressure levels:
Application Sound pressure level
Film 85 dB(C)
Broadcast 79 to 83 dB(C)
Music No defined reference levels
If the Neumann logo flashes red, the loudspeakers’ protection system has been activated . To
avoid this and achieve the desired output level, use larger loudspeakers or add a bass man-
aged subwoofer to the system .
EN