M29
Common name: Altec M29
Production Status: Discontinued / Vintage
The M29 is a small diaphragm vacuum tube condenser microphone. It is part of the M-series (M11, M20 and M30 Systems). It uses the Austrian manufactured 29A cardioid capsule connected to the 29B amplifier body that houses the circuit based around a 5840 vacuum tube. The microphone is connected to a 525A power supply unit via a 15 ft. cable. A second cable connects the power supply unit to the receiving equipment. The 29A capsule uses a 60v polarisation voltage while the previous 21D needs 200v so older power supplies need to be modified in order to be used with the M29. Includes 166A stand mount, 169A shock-mount, 525A power supply and cables.
Electrical Characteristics
Frequency Response
20Hz - 20 kHz
Output Sensitivity
22.38 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
30/150/600Ω
Recommended Load
Powering
Proprietary unit
Supply Current
mA
Alternative Powering
Tube Model
5840
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
XLR-8F
Connector notes
Available Colours
Stainless steel.
Weight
Length
198 mm
Min diameter width
Max diameter
19 mm
Depth
Accessories
Included
Optional