Wunder Audio CM49 - Manual

1. CM49
The Wunder Audio CM49 Tube Microphone comes with the original
M7 capsule. The M49 was the first condenser microphone capable
of remote pattern control, achieved through electronic means. By
varying the rear-diaphragm voltage against the backplate reference,
a full range of patterns, from omni to cardioid to figure-8, was
accomplished. Because the grille is slanted and presents a
continuously varying profile to the capsule, there are fewer standing
waves generated.
It should be stressed that vacuum tubes, with their heater filaments,
are much more delicate than solid-state components. Consequently,
the user should take great care in handling the microphone. A drop
from even a moderate height may cause the filament to break and
may result in immediate failure of the microphone. It would be
advisable for the user to keep a spare tube – specially selected by
the Wunder Audio Service Department – always ready for
replacement.
It is important to note that the tube may have become slightly
unplugged from the tube socket during shipping. If the microphone
has no audio output, 99% of the time it is a result of a slightly
unplugged tube.
Repairs are to be carried out only by experienced, authorized
service personnel. Unauthorized opening of, or modification to
the equipment shall void the warranty.
The microphone tube requires a high operational voltage.
Contact with the voltages present in the interior of the
microphone and PSU may result in injury or death; therefore,
the microphone and PSU must be opened only by an
authorized, qualified technician.
The microphone must be operated only with the supplied
cable. Because hazardous voltages are generated by the PSU
that may result in injury or death, always ensure that the
microphone cable is undamaged. Damaged cables must no