Shure 566 User Guide

MODEL 566

ACHITECT'S SPECIFICATIONS

The microphone shall be Shure Model 566 or equivalent. A moving coil (dynamic) microphone with a frequency range of 40 to 15,000 Hz., this unit shall have a cardioid polar characteristic. The cancellation at the sides shall be approximately 6 db and the cancellation at the rear shall be 15 to 20 db. The microphone shall be equipped with a three-position impedance "Off" switch for adjusting the microphone rating impedance for 50 ohms and 150 ohms.

The microphone output shall be:

50 ohms, (low) impedance -57.5 db

(0 db = 1 milliwatt with 10 microbars)

150 ohms, (medium) impedance -57.5 db (0 db = 1 milliwatt with 10 microbars)

The microphone rating Gm (sensitivity) at 1,000 Hz. shall be within 3 db of the following levels.

Low impedance . . . . . . . . . . . . . . . . . .	.-154.5	db
Medium Impedance . . . . . . . . . . . . . . .	-154.0	db
EIA Standard SE-105 August 1949

The microphone shall be provided with a swivel adjustable through 180.O The microphone shall be equipped with a vibration-isolation unit in combination with the stand connector. The microphone will mount on a stand having %"-27 thread.

The overall dimensions shall be 5-9/32" (134.1 mm) in height, 2-1/32 (51.5 mm) in width, and 6Y2" (165.1 mm) in depth.

0 4 Sam

OVER-ALL DIMENSIONS

FIGURE A

FREQUENCY IN HERTZ

FREQUENCY ,RESPONSE

FIGURE B

,-ROTOR TERMINAL

snlELo WHITE

BLACK

CABLE PLUG ASSEMBLY

4CASE GROUND

POSITIVE	PRESSURE PRODUCES POSITIVE	s
VOLTAGE	PIN 2 w l T n RESPECT TO PIN

'INTERNAL CONNECTIONS

SPECIFICATIONS

Type:

Dynamic

Frequency Response:

40 to 15,000 Hz.(See Figure B)

Polar Pattern:

Cardioid (Unidirectional) pattern-Effective rejection of sound at the rear of the microphone is uniform at all frequencies, while front pickup characteristics are uniform about the axis. (See Figure D).

Microphone Rating Impedance:

Dual. Choice of 50 ohms "L" or 150 ohms "H," selected by impedance switch for connections into microphone inputs rated at 25 to 250 ohms. (See "switch" below. Factory set to 150 ohms when shipped).

Output Level:

1,000 Hz. response.	5	0 ohm "L" position
Model 546.....................................
Open Circuit Voltage.....................	- 83.0 db* (.071 mv)
Power Level..................................	.-	57.5	db'*
EIA Microphone Rating	-154.5		d b * * *
Gm (sensitivity) ..........................
Model 546.......................................	150 ohm "H" position
Open Circuit Voltage......................	- 76.5		db* (.I49 mv)
Power Level.....................................	- 57.5		db**
EIA Microphone Rating	-154.0		db* * *
Gm (sensitivity) ..........................
'0 db = 1 volt per microbar.
'*O db = 1 milliwatt with	10 microbars.
***O db = EIA Standard SE-105, August			1949.

Switch:

lmpedance selection switch with center position "OFF." May be used with "Tamper-proof" cover, or accessory (included) "ON-OFF" knob.

Swivel:

Positive	acti:n	life-time swivel permits tilting of head
through	180.

Shock Mount:

Special vibration-isolation of rubber construction.

Case:

Chrome-plated die-cast case and "Armo-Dur."

Cable:

20-foot (6.1 m) two conductor shielded with a professional three-pin female audio connector on microphone end designed to mate with Cannon XL series, Switchcraft A3 (Q.G.) series Qr equivalent connector.

Dimensions:

See Figure A

Net Weight Less Cable:

1Y i pounds (567 grams)

FIGURE C

FIGURE D