User Manual
12 | KH 310
Acoustical control Function Possible settings
Bass Compensates for acoustical loading in
the low frequency range due to nearby
large solid boundaries (e.g. walls).
0, −2.5, −5, −7.5 dB
Low-Mid Compensates for acoustical loading
in the low-mid frequency range due
to nearby large solid objects
(e.g. mixing consoles or desks).
0, −1.5, −3, −4.5 dB
Treble Compensates for insucient or
excessive high-frequency
damping in the room.
+1, 0, −1, −2 dB
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 settings
Adjusting the acoustical level
X
On your KH 310 loudspeakers, set the OUTPUT LEVEL switch to the lowest possible value of
94 dB SPL and the INPUT GAIN control 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 switch and the input gain control of your loudspeakers so that the desi-
red acoustic 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 KH 310’s protection system has been activated. Toavoid
this and achieve the desired output level, use larger loudspeakers or add a bass managed sub-
woofer to the system.
EN