Shure SM137 Instrument Condenser Microphone

Reinforce and record acoustic guitar, percussion, piano and more with this affordable, super-versatile small-diaphragm condenser from Shure's SM series.

The SM137 has a frequency response that combines the best of both worlds -- a smooth high-end and a tightly controlled low-end. Made using an ultra-thin diaphragm, this mic is what is needed when picking up the subtle nuances of an instrument. Providing a 15 dB pad, Shure's SM137 has natural sound reproduction for quiet acoustic and high volume applications.

Road worthy, don't forget to take this mike on tour. Made with rugged nearly indestructable chassis, Shure's SM series of mics were built to take the punishment of night-after-night gigging.


- Ultra-thin diaphragm for smooth high end and tight, controlled low end
- 15dB pad for performance consistency across a wider range of high SPL sources
- Low self-noise and transformerless preamplifier circuitry
- Cardioid polar pattern
WARNING: Cancer and Reproductive Harm -

Cartridge Type: Permanently Biased Condenser

Frequency Response: 20- to 20,000 Hz

Directional Polar Pattern: Cardioid

Output Impedance: 150 ohms (actual)

Attenuation Switch: 0 dB or 15 dB attenuation

Phantom Power: 48 Vdc +/- 4 Vdc (positive pins 2 and 3)

Current Drain: 5.2 mA typical at 48 Vdc

Common Mode Rejection: >50 dB, 20 Hz to 20 kHz

Polarity: Positive pressure on diaphragm produces positive voltage on output pin 2 relative to pin 3

Sensitivity: -41 dBV/Pa (typical, at 1000 Hz; 1 Pa = 94 dB SPL)

Self-noise: 19 dB (typical, equivalent SPL; A-weighted (IEC 651))

Maximum SPL: @ 1000 Hz
- 5000 ohms load (Attenuator on): 150 (165 dB)
- 2500 ohms load (Attenuator on): 144 (159) dB
- 1000 ohms load (Attenuator on): 139 (154 dB)

Output Clipping Level:
- 5000 ohms load: 15 dBV
- 2500 ohms load: 9 dBV
- 1000 ohms load: 3 dBV

Dynamic Range: (Attenuator On)
- 5000 ohms load: 133 (136) dB
- 2500 ohms load: 128 (130 dB)
- 1000 ohms load: 122 (125) dB

Signal to Noise Ratio: 75 dB

- Diameter: 0.95 inches (24 mm)
- Length: 6.375 inches (162 mm)

Weight: 6.9 oz (195 grams)
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1 lbs
Shipping Dimensions: 10 x 5 x 4 in
Manufacturer Part Number (MPN): SM137LC
Warehouse Resealed
Shipping Weight: 1.2 lbs
Shipping Dimensions: 11 x 5 x 4 in
Manufacturer Part Number (MPN): SM137LC

For support or warranty questions, please contact the manufacturer:
Phone: 800-516-2525

Reviewers gave this product an overall rating of 4.5 out of 5 stars. (2 ratings)
Submitted February 9, 2011 by a customer from

"Great! Be Sure You Have "Phantom Power" on your PA...not (Prince Albert) or in Your Bag!"

Overall: 4.5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I'd have given it a "10" , but I just met her.
Just what one would exepct from Shure
Just what I needed for use with my insgtrument. No muss no fuss.
Ease of Use
Plug and Play...Oh!..wait a moment...make sure you have "Pantom Power" available. I missed that in the specs. and my PA does not have it. It is over a year old. However, I have a "Phantom Power" module that I can use so I did not have to purchase a new PA...yet!
It's Shure. Need I say more. Just got it and haven't dropped it yet.
It's Shure!...This is getting repetitious
Manufacturer Support
Haven't needed it for any of my 6 other mics.
The Wow Factor
"Slim, Fast, Efficient, and makes the High and Low Notes Soar!!!

Musical Background:

"Active Musician"

Musical Style:

Bluegrass Gospel
4 of 11 people (36%) people found this review helpful. Did you?
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