Thank you for selecting the KSM series from Shure.
Over 90 years of audio experience has contributed to making this one of the finest microphones available.
If you have any questions not answered in this guide, please contact Shure Applications Engineering at 847-600-8440, Monday through Friday, from 8:00 am to 4:30 pm, CST. In Europe, call 49-7262-92490. In Asia, call 852-2893-4290. Our web address is www.shure.com.
This premium side-address, cardioid condenser microphone features a large dual-diaphragm optimized for world-class vocal recording and performance applications. With a tailored frequency response and extensive internal and external pop filtering, the single-pattern, dual-diaphragm design of the KSM42 exhibits an exceptionally smooth frequency response and ultra-wide dynamic range. The KSM42 is the premier choice for capturing sophisticated and intimate vocal performances.
The KSM42 is designed primarily for:
Secondary uses might include:
This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased headroom and sensitivity with supplies as low as 11 Vdc.
Most modern mixers provide phantom power. You must use a balanced microphone cable: XLR-to-XLR or XLR-to-TRS.
Use the supplied ShureLock® rubber suspension mount to secure the microphone to a floor or boom stand.
Important: Thread the knurled locking ring securely to the base of the microphone. Do not overtighten.
The front of the microphone is marked by the Shure logo. Position this side toward the sound source.
An integrated three-stage mesh grille guards against wind and breath noise. Use the included pop filter accessory for additional protection against breath and "plosive" noises. The pop filter magnetically attaches to the front of the shockmount ring.
To counter proximity effect, the KSM42 uses two diaphragms, one active and one passive, to create an acoustic phase shift at the rear of the microphone. This produces a broad "sweet spot" of uniform low-frequency response, allowing the performer to move closer or further from the microphone with minimal changes in sound quality.
Dual-Diaphragm, Front-Active, Externally-Biased Condenser
60 to 20,000 Hz
open circuit voltage, @ 1 kHz, typical
–37 dBV/Pa (14.1 mV)
1 kHz at 1% THD
|2500 Ω load||139 dB|
|1000 Ω load||139 dB|
@ 1 kHz
|2500 Ω load||131 dB|
|1000 Ω load||131 dB|
20 Hz to 20 kHz, 1% THD
|2500 Ω load||8.0 dBV|
|1000 Ω load||6.5 dBV|
equivalent SPL, A-weighted, typical
8.5 dB SPL-A
10 to 100,000 kHz
Three-pin professional audio (XLR), male, balanced
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
11–52 V DC phantom power (IEC-61938), 6 mA
494 gwith shock mount and pop filter: 820 g
 1 Pa=94 dB SPL
THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL
S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.
|PopperStopper™ Magnetic Pop-Filter for A42SM||
|ShureLock Shock Mount for KSM42||
Velveteen Pouch for KSM42
Replacement O Rings for KSM42 Shock Mount (4)
Black Foam Windscreen for BETA27, KSM27, KSM32, KSM42, KSM44, KSM44A, PG27, PG42 and SM27Black Foam Windscreen for BETA 27, KSM27, KSM32, KSM42, KSM44, KSM44A, PG27, PG42 and SM27
Padded Zippered Carrying Bag for KSM32
Black Mount/Swivel Adapter for BETA27, KSM27, KSM32 and KSM44Black Mount/Swivel Adapter for Beta 27, KSM27, KSM32 and KSM44
Replacement O Rings for KSM42 Shock MountReplacement O Rings for KSM42 Shock Mount (4)
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.
The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
75031 Eppingen, Germany
Phone: +49-7262-92 49 0
Fax: +49-7262-92 49 11 4
Trademark Notices: The circular S logo, the stylized Shure logo, the word “Shure,” and “ShureLock” are registered trademarks of Shure Incorporated in the United States. “Popper Stopper” is a trademark of Shure Incorporated in the United States. “Mylar” is a registered trademark of E.I. DuPont de Nemours and Company in the United States. These marks may be registered in other jurisdictions.
Patent Notice: Pat. D447,131