BLM 3

Common name: Schoeps BLM 3

Production Status: In production

The BLM 03 is a boundary-layer microphone capsule with a hemispherical polar pattern. The capsule can be connected to any microphone amplifier of the Colette series (except battery operated models). The capsule is placed off-centre of the 5 mm thick plate. The plate is relatively heavy to avoid structural borne vibrations (for example footsteps on a Foley stage). The off-axis sounds encounter very little frequency discrimination. Sound coloration is low, even for moving sound sources because the frequency response is essentially the same for all angles within the hemispherical pickup pattern. It is ideal for Television and Film, pickup of stage dialogue, or in orchestra pits, as an ambience microphone and for special public address applications. Since the microphone may well be used on the floor, the likelihood of damage from its being stepped on has been reduced by careful design and construction. As a rule, the capsule will not be harmed by normal footwear.

Electrical Characteristics

Frequency Response
20Hz - 20 kHz
Output Sensitivity
19 mV/Pa
Max SPL
128
Max SPL, THD:
0.5
Self Noise (CCIR)
23 dB
Self Noise (DIN/IEC)
12 dB-A
Output Impedance
42Ω
Recommended Load
1kΩ
Powering
Supply Current
4 mA
Alternative Powering

Switchable Options

Pad
Filter/EQ
20 Hz, 12 dB/oct.

Physical Characteristics

Connector
XLR-3M
Connector notes
Available Colours
Matte Grey
Weight
570 g
Length
Min diameter width
Max diameter
Depth

Accessories

Included
Wooden box. SG 20 stand clamp. B 5 D windscreen.
Optional
Clamp for M/S recordings.