The KSM313 is a premium bidirectional ribbon microphone for world-class audio recording and performance. The "Dual-Voice" design features discrete front and rear sonic signatures to accurately capture intimate vocals or intricate instrumentation.
The KSM313 is hand-assembled from state-of-the-art transducers, transformers and metals as the pinnacle of Shure quality. The revolutionary Roswellite® ribbon material replaces traditional foil ribbons with high tensile strength, toughness and shape-memory, providing superior resilience at extreme sound pressure levels (SPLs).
Ribbon microphones perform optimally with the least amount of loading on the ribbon element as practical. The higher the impedance input on the microphone, the better the low-end and mid-range frequencies are represented in the output signal. Shure recommends using preamps with impedance settings of 1000 Ohms or more, although different load impedances may be used for a desired sound quality.
This is a low-noise microphone. The combination of its efficient transducer, robust shielding, and custom transformer produces a low noise floor and output level equal to moving coil microphones.
Shure ribbon microphones have an exceptionally smooth, natural response and perform best with preamps that provide simple, transparent gain. However, Shure encourages experimentation to find the desired combination of color and transparency.
The unique Dual-Voice design of the KSM313 produces discrete front and rear sonic signatures. Position the sides, the null points of a bidirectional microphone, towards any unwanted sound sources. Some typical applications are listed below.
*When addressing the back side of a bidirectional mic, please remember to invert the signal polarity. Shure’s A15PRS accessory is an in-line, balanced, polarity-reversing switch capable of this operation and is available online at: store.shure.com
Thread the supplied stand adapter onto a floor or boom stand and insert the microphone.
Note: To reduce low-frequency vibrations transmitted through the stand, use an isolating shock mount. Visit www.shure.com for more information.
Directional microphones progressively boost bass frequencies as the microphone is placed in closer proximity to the source. This phenomenon, known as proximity effect, can be used to create a warmer, more powerful sound.
To protect your microphone, keep a few simple precautions in mind to ensure long-term performance:
Dual-Voice Roswellite® Ribbon
30 to 15,000 Hz
open circuit voltage, @ 1 kHz, typical
-54.5 dBV/Pa  (1.88 mV)
146 dB SPL
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
400 g (14 oz.)
|ShureLock® Stand Mount. Works with KSM313/NE, KSM313, KSM 353/ED.||A300M|
|Protective Velveteen Pouch. Works with KSM313/NE.||A313VB|
|Elastic suspension shock mount. Works with all KSM313 versions||A313SM|
|Switchable Polarity Reverser||A15PRS|
|Popper Stopper® Pop Filter with Metal Gooseneck and Microphone Stand Clamp||PS-6|
|25 foot (7.5m) Triple-Flex® Microphone XLR Cable with Switchcraft connectors||C25E|
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
Note: Information in this guide is subject to change without notice. For additional information about this product, please visit www.shure.com.
Trademark Notices: “Roswellite”, “Shurelock”, the circular S logo, the stylized Shure logo, and the word “Shure” are registered trademarks of Shure Incorporated in the United States. These marks may be registered in other jurisdictions. “Popper Stopper” is a trademark of Shure Incorporated in the United States.