2. Installation
2.1. Power source
The amplifier electronics of the standard European model are
set up for an AC line voltage of 230 volts, 50 or 60 Hz. Export
versions with other
voltages are also
available. Additionally
operation from a 12 to
14 V DC source is
provided. The DC
connectors (6.35 mm flat
plugs) are hidden under
a plastic cover. A non
reversable plug case is
delivered with the
speaker. Be sure of the
correct polarity as shown
on the imprint. A
protection diode prevents
from damage caused by
wrong polarity.
2.2 Operating
conditions
The K+H model M 50 active control monitor is intended for
use over a range of ambient temperatures from +10° C to
+40° C (+50° F to +104° F). During transport or storage,
temperatures from -25° C to +70° C (-13° F to 158° F) are
permissible.
2.3. AF - Input
The sensitivity of the transformer-balanced floating input is
+6 dBu (1.55 volts rms). Changing an internal resistor results
in a sensivity of 0 dBu (0.775 volt rms). The three-pin female
XLR jack is wired in the standard manner (pin 1 = ground, pin
2 = +, pin 3 = -).
If you are connecting unbalanced analog
sources, you will need to solder a bridge between pins 1 and
3:
unbalanced
balanced
as seen from the solder terminals of male XLR
Please observe, that the analog input level does not
exceed 7 volts rms.
2.4 Mains switch
The mains switch is located on the back of the speaker. A red
LED on the front side indicates the correct operation.
2.5 Volume control
The volume control is located on the front panel. The maximum
sensitivity of 1,55 V is achieved at full clockwise position.
2. Installation
2.1. Power source
The amplifier electronics of the standard European model are
set up for an AC line voltage of 230 volts, 50 or 60 Hz. Export
versions with other
voltages are also
available. Additionally
operation from a 12 to
14 V DC source is
provided. The DC
connectors (6.35 mm flat
plugs) are hidden under
a plastic cover. A non
reversable plug case is
delivered with the
speaker. Be sure of the
correct polarity as shown
on the imprint. A
protection diode prevents
from damage caused by
wrong polarity.
2.2 Operating
conditions
The K+H model M 50 active control monitor is intended for
use over a range of ambient temperatures from +10° C to
+40° C (+50° F to +104° F). During transport or storage,
temperatures from -25° C to +70° C (-13° F to 158° F) are
permissible.
2.3. AF - Input
The sensitivity of the transformer-balanced floating input is
+6 dBu (1.55 volts rms). Changing an internal resistor results
in a sensivity of 0 dBu (0.775 volt rms). The three-pin female
XLR jack is wired in the standard manner (pin 1 = ground, pin
2 = +, pin 3 = -).
If you are connecting unbalanced analog
sources, you will need to solder a bridge between pins 1 and
3:
unbalanced
balanced
as seen from the solder terminals of male XLR
Please observe, that the analog input level does not
exceed 7 volts rms.
2.4 Mains switch
The mains switch is located on the back of the speaker. A red
LED on the front side indicates the correct operation.
2.5 Volume control
The volume control is located on the front panel. The maximum
sensitivity of 1,55 V is achieved at full clockwise position.