DALE SKU # SHUR-SM137LC

Shure SM137-LC - Cardioid Condenser Instrument Microphone

Sale price$209.00 Regular price$264.00
Save $55.00
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    Description

    The SM137 is a versatile, flat-response cardioid condenser probe microphone. The SM137 has an ultra-thin diaphragm for a frequency response that combines a smooth high-end with a tight, controlled low-end and a 15db pad for natural sound reproduction in both acoustic and high volume performance applications.

    Features:

    • Cardioid polar pattern to reduce the pickup of unwanted sounds
    • Ultra-thin, 2.5 micron 24 karat gold-layered, low mass Mylar® diaphragm for superior transient response
    • Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response, no crossover distortion, and minimal harmonic and intermodulation distortion
    • Premium electronic components, including gold-plated internal and external connectors
    • Two-position switchable pad (0 dB and 15 dB) for handling extremely high sound pressure levels (SPLs)
    Type Electret Condenser
    Frequency Response20 to 20,000 Hz
    Polar PatternCardioid
    Output Impedance150 ohms actual
    Sensitivity (at 1 kHz, open circuit voltage)

    -41 dBV/Pa (1 Pascal=94 dB SPL)

    Maximum SPL (1 kHz at 1% THD)

    1000 ohms load: 139 dB (154 dB, Pad on) / 2500 ohms load: 144 dB (159 dB, Pad on)

    Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz)75 dB (S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted)
    Dynamic Range (at 1 kHz)

    1000 ohms load: 122 dB / 2500 ohms load: 128 dB

    Common Mode Rejection (20 Hz to 20 kHz)

    > 50 dB
    Clipping Level (20Hz-20 kHz at 1%THD)

    1000 ohms load: 3 dBV / 2500 ohms load: 9 dBV (THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL)

    Self Noise (typical, equivalent SPL, A-weighted)19 dB
    Polarity

    Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

    WeightNet: 195 g (6.9 oz.)
    SwitchAttenuator: -15 dB
    Connector Three-pin professional audio (XLR), male
    Power Requirements48 Vdc phantom, 5.2 mA

    The SM137 is a versatile, flat-response cardioid condenser probe microphone. The SM137 has an ultra-thin diaphragm for a frequency response that combines a smooth high-end with a tight, controlled low-end and a 15db pad for natural sound reproduction in both acoustic and high volume performance applications.

    Features:

    • Cardioid polar pattern to reduce the pickup of unwanted sounds
    • Ultra-thin, 2.5 micron 24 karat gold-layered, low mass Mylar® diaphragm for superior transient response
    • Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response, no crossover distortion, and minimal harmonic and intermodulation distortion
    • Premium electronic components, including gold-plated internal and external connectors
    • Two-position switchable pad (0 dB and 15 dB) for handling extremely high sound pressure levels (SPLs)
    Type Electret Condenser
    Frequency Response20 to 20,000 Hz
    Polar PatternCardioid
    Output Impedance150 ohms actual
    Sensitivity (at 1 kHz, open circuit voltage)

    -41 dBV/Pa (1 Pascal=94 dB SPL)

    Maximum SPL (1 kHz at 1% THD)

    1000 ohms load: 139 dB (154 dB, Pad on) / 2500 ohms load: 144 dB (159 dB, Pad on)

    Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz)75 dB (S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted)
    Dynamic Range (at 1 kHz)

    1000 ohms load: 122 dB / 2500 ohms load: 128 dB

    Common Mode Rejection (20 Hz to 20 kHz)

    > 50 dB
    Clipping Level (20Hz-20 kHz at 1%THD)

    1000 ohms load: 3 dBV / 2500 ohms load: 9 dBV (THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL)

    Self Noise (typical, equivalent SPL, A-weighted)19 dB
    Polarity

    Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

    WeightNet: 195 g (6.9 oz.)
    SwitchAttenuator: -15 dB
    Connector Three-pin professional audio (XLR), male
    Power Requirements48 Vdc phantom, 5.2 mA

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