Shure SM61 User Guide

THE SOUND OF THE PROFESSIONALS®	PROFESSIONAL PRODUCTS

GENERAL

The superb physical and acoustic design of the Model SM61 Professional Microphone makes it an outstanding choice for applications that range from remote broadcast interviews or sports coverage to onstage and television hand-held use. The SM61 microphone is virtually insensitive to wind, pop, and handling noises. Because of the unique VERAFLEX® grille, the microphone is unparalleled in ruggedness.

The unusual combination of light weight and exceptionally low handling noise in the SM61 is achieved by a special built-in mechanical isolation system between microphone cartridge and case. Breath noise and popping are so effectively controlled by the integral wind and pop filter that the need for add-on windscreens is eliminated in all but the most adverse conditions. The VERAFLEX grille protects the microphone against damage from a drop of up to 2 meters (6 feet), resists dents, and is impervious to rust, corrosion, and moisture.

Microphone Features:

nVery low sensitivity to handling and stand noise

nBuilt-in breath and pop filter eliminates pop and minimizes wind noise

nVERAFLEX grille resists damage from drops, dentproof and immune to rust, corrosion, and moisture

nCompact, handsome styling - looks good on stage, on screen, on television

nDurable - endures rough usage in the field or studio

nExcellent balance and feel for hand-held use

nSwivel adapter provides snap-in convenience for hand-held or stand-mounted use

VARIATIONS

Model SM61-LC: Supplied without cable.

SPECIFICATIONS

Type

Dynamic

Frequency Response

50 to 14,000 Hz (See Figure 1)

TYPICAL FREQUENCY RESPONSE

FIGURE 1

Polar Pattern

Omnidirectional (See Figure 2)

TYPICAL POLAR PATTERNS

FIGURE 2

Impedance

Microphone rating impedance is 150 ohms (175 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms

Output Level (at 1000 Hz)

Open Circuit Voltage . . . . . . . . . . -81.5 dB* (.08 mV)

Power Level . . . . . . . . . . . . . . . . . . -60.5 dB**

*0 dB = 1 volt per microbar

**0 dB = 1 milliwatt per 10 microbars

Hum Pickup (typical)

31 dB equivalent SPL in a 1 millioersted field

Phasing

Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 (See Figure 3)

U.S. Patent 3,653,625

Printed in U.S.A.

INTERNAL CONNECTIONS

FIGURE 3

Case

Aluminum and VERAFLEX®

Finish

Matte metallic

Swivel Adapter

Snap-in, positive-action, adjustable from 0° to 90°, with standard 5/8”-27 thread

Dimensions

See Figure 4

FIGURE 4

Net Weight (less cable) 147 grams (5.2 ounces)

Packaged Weight

SM61-LC: 404 grams (14 oz)

ARCHITECT’S SPECIFICATIONS

The microphone shall be a moving coil (dynamic) type with a frequency response of 50 to 14,000 Hz. The unit shall have an omnidirectional horizontal polar characteristic. The microphone shall have a rating impedance of 150 ohms for connection to microphone inputs rated at 19 to 300 ohms.

The microphone output shall be -60.5 dB where 0 dB = 1 milliwatt per 10 microbars.

The microphone shall be provided with a swivel adapter adjustable through 90° from vertical to horizontal.

The overall dimensions shall be 181 mm (7-1/8 in.) in length and 40 mm (1-17/32 in.) in diameter.

The microphone swivel adapter shall permit the microphone to be placed into and removed from the adapter with a smooth “snap-in” movement. The adapter will be equipped with 5/8”-27 thread for mounting on a standard microphone stand fitting.

The microphone shall be the Shure Model SM61 or equivalent.

FURNISHED ACCESSORY

Swivel Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A57D.

OPTIONAL ACCESSORIES

Desk Stand . . . . . . . . . . . . . . . . . . . . . . . . . . S37A, S39A Isolation Mount . . . . . . . . . . . . . . . . . . . . . . . . A53M TRIPLE-FLEX® Cable and Plug (7.6m - 25 ft) . . . . . C25F Windscreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A61WS

REPLACEMENT PARTS

Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .R61

Grille Assembly . . . . . . . . . . . . . . . . . . . . . . RK164G