Maintenance - Beyerdynamic Classis BM 52 Produktinformation

Classis BM 52 – Boundary Microphone
10
• Position 80 or 180:
Two-stage roll-off filter to reduce low-frequency noise.
This is useful in live rooms or in noisy surroundings.
Additional functions of the Classis BM 52 RC
MOSFET output
Pin 4 is a MOSFET output for the control of external
devices. When the microphone is activated, the output is
low-impedance to chassis (< 25 Ω). AC and DC signals
can be switched, the maximum current is 100 mA, the
maximum voltage is 300 V. If you want to connect higher
loads, this output can also be used for the control of an
additional power switch.
External operation
An external button can be connected to pin 5
(connection to chassis). All operating functions can be
remotely controlled. The DIP switch located at the
bottom of the Classis BM 52 RC allows you to select bet-
ween remote control operation or integral membrane key
and remote operation (remote and internal control).
Important
To connect the Classis
BM 52 RC a cable with
the following structure
should be used:
2 wires shielded,
2 control lines,
overall shield.

Maintenance

Use a soft, damp cloth for cleaning the surface. Take
care not to allow any water to enter the transducer
elements and do not use any solvent cleaners.
Service
Servicing must be carried out by qualified service
personnel only. Dismantling the microphone yourself will
invalidate the guarantee.
2 wires, shielded
2 control lines
overall shield