The Mono Input Channels; Phantom Power Switch - Alto PBM4 SISTEMA User Manual

1 THE MONO INPUT CHANNELS

These are marked CH1 to CH3 and include a
balanced XLR socket (MIC IN) and a balanced
1/4" socket (LINE IN). Use the XLR socket to
connect a low impedance balanced dynamic
microphone or a low level signal. You can also
connect a Condenser microphone into the XLR
socket (See following about Phantom Power).
Use the LINE IN socket to connect a Line Level
Instrument such as a keyboard or a drum machine.
You can also connect an electric guitar or bass
through an option DI Box (Direct Injection Box)

2 PHANTOM POWER SWITCH

When the (2) switch is at ON position, a +15V
phantom power will be applied to CH1 through
CH3. Only Condenser microphones need Phantom
Power, so switch it OFF when you use dynamic
microphones.
3 TAPE IN
Here you can connect a stereo Line Level via RCA
sockets. Usually this stereo channel will be used to
connect into the PBM4 SISTEMA with the audio output
of a Computer, or a CD Player, iPOD, MP3 player, etc.
4 TAPE OUT
Via these two RCA sockets you can route out the
Main Stereo signal usually to a Tape Recorder or
DAT Recorder.
5 LEVEL CONTROL
It adjusts the LEVEL of individual channels with a range from
6 CHANNEL EQ
Each Input channel has its own 2 bands equalizer with an adjustable range of
+/-15 dB. The HIGH control creates a shelving filter that will boost/cut all
frequencies above 12 kHz. You can use it to eliminate high frequency noise and
hiss (such as those produced by Tape Recorders) or to boost and make crispier
the cymbals or certain harmonics of the human voice. The LOW control will
create a shelving filter that will boost/cut frequencies below 80 Hz. Use the
LOW control to put in evidence Kick Drum or enhance male voice.
4. CONTROL ELEMENTS 3. CONTROL ELEMENTS
0
HIGH
12KHz
-15dB +15dB
0 0
LOW
80Hz
-
-15dB +15dB +10dB
LEVEL
2 1
3
LINE IN (bal.)
MIC IN (bal.)
CH 1
PHANTOM
ON OFF
LEVEL
IN
TAPE
OUT
CH 4
to +10dB.
6
5
1
2
3
4
5