Shure 55SH SERIES II specifications Polarity, Optional Accessories, Replacement Parts

Impedance

Microphone rating impedance is 150 ohms (270 ohm actual) for connection to microphone inputs rated at 75 to 300 ohms

Output Level (at 1,000 Hz)

Open Circuit Voltage . . . . . . . . . . . ±78.0 dB (0.13 mV) 0 dB = 1 volt per microbar

Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±58.5 dB 0 dB = 1 milliwatt per 10 microbar

Polarity

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

Switch

Built±in On/Off switch, integral part of swivel mount connector Three pin professional type, designed to mate with Cannon XL series, Switchcraft A3 (Q.G.) se- ries, or equivalent

Case

Chrome±plated die casting

Dimensions

See Figure 3

OVERALL DIMENSIONS

FIGURE 3

Net Weight

625 grams (22 oz)

Certifications

Conforms to European Union directives, eligible to bear CE marking; meets European Union EMC Immunity Requirements (EN 50 082±1, 1992).

POLARITY

To test two microphones and their cables for common polarity, connect them to an amplifier and talk or sing into them while holding them three or four inches apart. The sound from the speakers should be the same when talking into either microphone or directly between them if they have common polarity. If the sound level drops drastically, or if a dead spot is found, when talking between the two micro- phones, either the microphones or their cables have differ- ent polarity. All cables and microphones can be tested in this manner to ensure that they have common polarity.

To reverse the polarity of a low±impedance microphone cable, use either a Shure A15PRS Switchable Phase Re- verser or interchange the wires connected to pins 2 and 3 of the connector. To reverse the polarity of a microphone, inter- change the cartridge leads (see Figure 4.) This should be performed by your dealer, the Shure Factory Service De- partment, or other qualified service personnel.

CARTRIDGE		SWITCH	XLR CONNECTOR
		BLACK
		YELLOW
	BLACK
			2	1
	YELLOW			3
CODED TERMINAL
	BLUE
	INTERNAL CONNECTIONS
		FIGURE 4
OPTIONAL ACCESSORIES
Desk Stand			. . . . .	S37A, S39A
Line Matching Transformer			. . . . A85F, A95UF
Cable and Plug Assembly			C25B, C25E, C25J

REPLACEMENT PARTS

Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R115

On/Off Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RK32S

Plug Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . RK169P

For additional service or parts information, please con- tact Shure's Service department at 1-800-516-2525 or www.shure.com. Outside the United States, please contact your authorized Shure Service Center.

The Sound of Professionals...Worldwide

Shure Brothers Incorporated

222 Hartrey Avenue, Evanston IL 60202-3696

Phone:	847	866-2200	FAX: 847	866-2279
In Europe, Phone:	49-7131-72140 FAX: 49-7131-721414
Internationally, Phone:	847	866-2200	FAX: 847	866-2585
Website	www.shure.com

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