RCF FORUM 3000, Owner'S Manual, Page: 11 / 40

11
ENGLISH
r
Dip-switches:
1
FLAT –
HI PASS DESK-IN
FLAT: the audio hi-pass filter
is not inserted (flat frequency
response) on all desktop
microphones (delegates and the
chairman).
HI-PASS DESK-IN: the audio hi-
pass filter is inserted on all desktop
microphones (delegates and the
chairman).
2
MIX –
AUX IN PRIORITY
MIX: the AUX INPUT (when
open) is mixed with all desktop
microphones (delegates and the
chairman). AUX IN PRIORITY: the AUX INPUT
(when open) has priority over all
desktop microphones (delegates and
the chairman).
3
SHORT –
VOX REL. LONG
SHORT: the AUX INPUT VOX
function release time is short (c.
3 s).
VOX REL. LONG: the AUX INPUT VOX
function release time is long (c. 30 s).
4 LOW – VOX SENSITIVITY HI
LOW: the AUX INPUT VOX
function sensitivity is low.
The signal threshold is – 45 dBu
(necessary level to open the
input).
VOX SENSITIVITY HI: the AUX INPUT
VOX function sensitivity is high.
The signal threshold is – 55 dBu
(necessary level to open the input).
5 SYSTEM – PRE-IN DIRECT LINK
SYSTEM: (default setting) all
desktop microphones and
the AUX INPUT are directly
connected to the MMU 3100
internal amplifier.
PRE-IN DIRECT LINK: the MMU 3100
internal amplifier is only driven by the
PRE IN
]
audio input.
All desktop microphones and the
AUX INPUT can be connected to
the MMU 3100 internal amplifier
by linking (either directly or through
a signal processor, i.e. a DSP, an
equaliser, etc.) the MIXER OUT
o
to
the PRE IN
]
.