7
9
MIC/PH/LINE SWITCH for INPUT
1
Use this switch to select the type of source connected to the input:
MIC
for a dynamic microphones
PH
for a condenser microphone with phantom powe
r
LINE
for a line level source.
WARNING
It is recommended to set the input level at minimum before changing this switch position then gradually
raise up the level, otherwise when the “PH” phantom supply is engaged it would produce a loud “bump”
from the audio system.
Some line level devices don’t support the “PH” phantom supply, so it can cause permanent damages to
the connected devises if engaged. To avoid that, it is recommended to disconnect temporarily the
Euroblock connector before changing the switch position from MIC/PH to LINE.
10
INPUT 1 PRIORITY
INPUT 1 PRIORITY potentiometer sets the threshold level of the INPUT 1 signal that mutes temporarily
the INPUT 2 and AUX channels. Priority function can be used when a microphone connected to INPUT1
is used to make a voice announcement: if turned fully counter-clockwise it has no effect on the other
channels, turning it clockwise sets the level of intervention.
11
INPUT
2
Balanced or unbalanced input on 3.5mm pitch Euroblock connector with same connection as INPUT 1.
12
MIC/PH/LINE SWITCH for INPUT 2
Set this selector for the source type signal connected to this input: the sensitivity is the same of INPUT 1.
13
AUX IN (RCA)
These are two RCA female connectors that accept two RCA plug from LEFT and RIGHT channels of a line
level stereo source (e.g. radio tuners, television receivers, media players, etc.). Each RCA input is wired
as follows:
Tip = + positive or "hot"
Sleeve = shield or ground
14
LOUDSPEAKERS OUTPUTS
The device allows the connection of constant impedance speakers (4Ω or 8Ω) or constant voltage
speakers at (70/100V) on 5.08 mm pitch Euroblock connector.
A Class 2 wiring is needed for fixed installation. This connector can accept 0.5÷2.5 mm
2
/ 20÷14 AWG
size cables.
WARNING
DO NOT CONNECT MIXED
CONSTANT IMPEDANCE AND CONSTANT VOLTAGE SPEAKERS.
To avoid the risk of electric shocks, never touch the amplifier outputs during operation.
