GLM100

The Crown® GLM or “Great Little Mic” is a miniature electret condenser microphone designed for professional recording and sound reinforcement. It offers the quality of large studio microphones, yet is nearly invisible in use.

The GLM can be attached to an acoustic guitar, sax, flute or the performer's face to allow freedom of movement.

It can be attached to drum rims to pick up a drum set without the unsightly clutter of boom stands.

These attachments can be made us-ing the included mounting hardware or tape. Used as a lavalier microphone, or hidden on a fi lm set, the GLM disappears in use yet provides excellent sound quality.

The GLM-100 is an omnidirectional mic with a low-impedance balanced XLR-type output, pow-ered by 12 to 48V phantom power.

The GLM-200 is a hypercardioid mic with a low-impedance balanced XLR-type output, powered by 12 to 48V phantom power.

The omnidirectional GLM-100 is the best choice if you need:
• Less wind noise
• Less pickup of mechanical vibration
• Deep low-frequency response down to 20 Hz
• 150 dB maximum SPL
• Smoother frequency response

The hypercardioid GLM-200 is the best choice if you need:
• Rejection of background noise, room acoustics, feedback, and sounds behind the microphone.

The GLM-100 may have adequate rejection of those unwanted sounds if it is used close to the sound source.

Made of a rugged, resilient space-age material, the GLM’s molded housing is designed to resist dam-age from demanding professional use.

Performance benefi ts of the GLM include: a wide, smooth frequency response; excellent transient response; and minimal off-axis coloration.

The GLM’s housing is designed to improve the high-frequency response of the microphone cap-sule. In contrast, the frequency response of large microphone capsules often is degraded by the microphone housing (due to sound diffraction).

Included with the GLM-100 and GLM-200 are a GLM-UM Universal Mount, a GLM-TB Tie Bar, GLM-BC Belt Clip, and a GLM-WS2 Windscreen.

MINIATURE OMNIDIRECTIONAL AND HYPERCARDIOID MICROPHONES

GLM-100
GLM-200

Specifications

Type: Miniature condenser.

Element: Electret condenser.

Frequency Response (typical):
GLM-100: 20 Hz to 20,000 Hz.
GLM-200: 60 Hz to 20,000 Hz.

Polar Pattern:
GLM-100: Omnidirectional.
GLM-200: Hypercardioid.

Impedance:
GLM-100: 240 ohms balanced. Recommended minimum load impedance 1000 ohms.
GLM-200: 100 ohms, balanced. Recommended minimum load impedance 1000 ohms.

Open Circuit Sensitivity:
GLM-100: 3.2 mV/Pa*(–50 dB re1 volt/Pa*)
GLM-200: 6 mV/Pa* (–44.5 dB re1 volt/Pa*).

Power Sensitivity:
GLM-100: –50 dB re 1 mW/Pa*.
GLM-200: –40.5 dBm/Pa*.

Equivalent Noise Level:
GLM-100: 28 dB SPLA-weighted, typical(0 dB = .0002 dyne/cm2).
GLM-200: 31 dB SPL A-weighted, typical(0 dB = .0002 dyne/cm2).

S/N Ratio:
GLM-100: 66 dB at 94 dB SPL.
GLM-200: 63 dB at 94 dB SPL.

Maximum Sound Pressure Level:
GLM-100: 150 dB SPL produces 3% THD.
GLM-200: 131 dB SPL produces 3% THD.

Polarity:
Positive pressure on the diaphragm produces positive voltage on pin 2 with respect to pin 3 of output connector.

Operating Voltage:
Phantom power, 12 to 48 volts DC, positive voltage on pins 2 and 3 with respect to pin 1 of output connector.

Operating Temperature Range:
–18° to +57° C (+0° to +135° F).

Current Drain:
GLM-100: 1.1 mA.
GLM-200: 1.4 mA.

Materials:
Black PVC housing.

Cable:
8-foot, black, permanently attached cable with rug-ged strain/fl ex relief and 3-pin pro audio connector.

Weight:
1 ounce (27.5 grams) without connector, 2.8 ounces (78.5 grams) with connector.