General Description

The Shure Model 515SDX is a dual-impedance, cardioid (unidirectional) dynamic microphone that is suitable for speech pickup in schools, churches, and meeting rooms. Its unidirectional polar pattern greatly reduces feedback.

The 515SDX includes a locking ON/OFF switch and an internal impedance selection socket mounted on the XLR connector for switching between high and low impedance. A slip-in swivel adapter is supplied for stand-mounted use.

Features

  • Rolled-off low-frequency response combined with a smooth high-frequency rise for clear and intelligible voice pickup
  • Symmetrical cardioid pickup pattern minimizes feedback
  • Neodymium magnet for high signal-to-noise ratio
  • Shock-mounted cartridge that minimizes handling noise
  • Lockable ON/OFF switch
  • Dual impedance selectable by internal socket
  • Slip-in swivel adapter for stand-mounted use
  • Three-pin professional audio connector, the industry standard, for maximum interchangeability of cables Tough, die-cast grille resists wear from constant use and handling
  • Field serviceable and backed by the Shure 2-year warranty

Applications

General Rules for Use

  • Aim the microphone toward the desired sound source (such as the talker, singer, or instrument) and away from unwanted sources.
  • Place the microphone as close as practical to the desired sound source.
  • Work close to the microphone for extra bass response.
  • Use only one microphone to pick up a single sound source.
  • Use the fewest number of microphones as practical.
  • Keep the distance between microphones at least three times the distance from each microphone to its source.
  • Place microphones as far as possible from reflective surfaces.
  • Add a windscreen when using the microphone outdoors.
  • Avoid excessive handling to minimize pickup of mechanical noise and vibration.
  • Do not cover any part of the microphone grille with your hand, as this will adversely affect microphone performance.

Impedance Selection

The microphone is shipped connected for low impedance operation. To change to high impedance proceed as follows:

  1. Loosen plug element by turning slotted setscrew counterclockwise (turn counterclockwise to lower screw into plug element). Pull plug element from case. Be careful not to stretch or break wires.
  2. The low impedance socket of the impedance selection connector is connected to Pin 3 of the plug element. Move the connector to the high-impedance socket (see diagram).
  3. Reinsert plug element and tight setscrew (turn clockwise to raise screw).

Specifications

Type

Dynamic (moving coil)

Frequency Response

80 to 15,000 Hz

Polar Pattern

Cardioid

Impedance

LO Z: 270 Ω
HI Z: High Impedance

Sensitivity(at 1 kHz, open circuit voltage)

L: -56.0 dBV/Pa (1.6 mV)
H: -37.5 dBV/Pa (14 mV)

Polarity

Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector

Switch

Built-inOn/Off Switch

Connector

Three-pin professional audio (XLR), male, balanced

Cartridge Shock Mount

Internal rubber vibration isolator

Case

Platinum beige enamel die casting with platinum beige steel grille

Net Weight

315 g (11.1 oz.)

TYPICAL FREQUENCY RESPONSE

TYPICAL POLAR PATTERNS

OVERALL DIMENSIONS

INTERNAL CONNECTIONS

Accessories

Furnished Accessories

Microphone Clip for SM58, SM57, SM87A, Beta 87A, Beta 87C, PGA57, PGA58, PGA48, PGA81

A25D

Optional Accessories

Shock Stopper® Isolation Mount

A55M

Black Foam Windscreen for KSM8, SM85, SM86, SM87A, Beta 87A, and Beta 87C

A85WS

Desk Stand

S37A

Desk Stand

S39A

20' Cable with ¼" Phone Plug on Equipment End (Pin 2 Hot)

C20AHZ

7.6 m (25 ft.) Cable (XLR-XLR)

C25J

25 foot (7.5m) Triple-Flex® Microphone XLR Cable with chrome connectors

C25F

Replacement Parts

Cartridge for 520DX

R198

Cable and Plug

95A2353

Volume Control Pot

90A4487

Certifications

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

Jakob-Dieffenbacher-Str. 12

75031 Eppingen, Germany

Phone: 49-7262-92 49 0

Fax: 49-7262-92 49 11 4

Email: info@shure.de