General Description

a diagram showing the Shure Uniplex UL4 microphone, a corded subminiature lavalier microphone.

The Shure UniPlex UL4 is a professional subminiature cardioid lavalier microphone that is ideal for speech applications in broadcast, corporate, and conference environments. The subminiature design and custom cardioid element provide robust audio performance. Each microphone is supplied with a storage pouch, single tie clip, and snap-fit windscreen.

Features

5 mm cardioid subminiature design for discrete placement
1.6 mm PLEX Cable technology, paintable cable, and no memory effect
Professional sound quality for speech applications
High RF immunity, compatible with Shure digital wireless systems without RF interference
Included case, tie clip, and windscreen
TA4F and LEMO terminations for variable wireless system connectivity
Available in Black, Tan, Cocoa, and White finishes

Note: Only use UL4 with Shure wireless systems

Lavalier Distance

A diagram showing the UL4 microphone placed 15 to 25 centimeters (6 to 10 inches) away from the speaker.

Tie Clip

a diagram showing the UL4 looping around and clipping into the tie clip, with the element facing up towards the speaker.

Snap-Fit Windscreen

A diagram showing the windscreen snapping down onto on the UL4 and being removed by pulling up.

Accessories

Furnished Accessories

Furnished Accessories	UL4 Black	UL4 Tan	UL4 Cocoa	UL4 White
Single Tie Clip	RPMDL4STC/B (1)	RPMDL4STC/T (1)	RPMDL4STC/C (1)	RPMDL4STC/W (1)
Snap-Fit Windscreen	RPMUL4SFWS/B (1)	RPMUL4SFWS/T (1)	RPMUL4SFWS/C (1)	RPMUL4SFWS/W (1)
Case	RPMDL4CASE	RPMDL4CASE	RPMDL4CASE	RPMDL4CASE
Preamplifier (UL4B/C-XLR only)	RPM400TQG	N/A	N/A	N/A

Accessories are available in Black (/B), Tan (/T), Cocoa (/C), and White (/W) color varieties. Please consult your Shure representative for available options.

Optional Accessories

TA4F/TQG XLR Preamplifier	RPM400TQG
Lemo XLR Preamplifier	RPM400LEMO
Black Dual Tie Clip, qty.1	RPMDL4DTC/B
White Dual Tie Clip, qty.1	RPMDL4DTC/W
Tan Dual Tie Clip, qty.1	RPMDL4DTC/T
Cocoa Dual Tie Clip, qty.1	RPMDL4DTC/C

Replacement Parts

RPMUL4SFWS/B	UL4 SNAP-FIT WINDSCREEN, BLACK, QTY 3
RPMUL4SFWS/C	UL4 SNAP-FIT WINDSCREEN, COCOA, QTY 3
RPMUL4SFWS/T	UL4 SNAP-FIT WINDSCREEN, TAN, QTY 3
RPMUL4SFWS/W	UL4 SNAP-FIT WINDSCREEN, WHITE, QTY 3
RPMDL4STC/B*	SINGLE TIE CLIP, BLACK, QTY. 3
RPMDL4STC/C*	SINGLE TIE CLIP, COCOA, QTY. 3
RPMDL4STC/T*	SINGLE TIE CLIP, TAN, QTY. 3
RPMDL4STC/W*	SINGLE TIE CLIP, WHITE, QTY. 3
RPMDL4CASE*E	DL4 POUCH, LAVALIER

*Also compatible with DuraPlex and TwinPlex 1.6 mm microphones.

Specifications

Microphone Capsule

MEMS

Polar Pattern

Cardioid

Frequency Response

40 Hz to 20 kHz

Sensitivity

MTQG	-42 dBV/Pa [1]
LEMO	-37 dBV/Pa [1]

Self-Noise, A-Weighted, Equivalent Acoustical

MTQG	32 dB SPL-A
LEMO	32 dB SPL-A

Signal-To-Noise Ratio [2]

MTQG	62 dB-A
LEMO	62 dB-A

Maximum SPL [3]

130 dB SPL,1 kHz at 1% THD, typical

Dynamic Range

98 dB typical

Microphone Current Draw

530 µA, maximum

Bias Voltage

Recommended Operating Voltage

3.5-5 V DC minimum, 5.5 V DC maximum

Housing

Molded ABS

Polarity

MTQG	Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1
LEMO	Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1

Cable Diameter

1.6 mm

Cable Length

66 in. (1.67 m)

Net Weight

12.5 g (0.44 oz.)

[1] 1 Pa=94 dB SPL

[2] S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted

[3] THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL

Dimensions

An illustration of DL4 marking Cable Length as A, Cable Diameter as B, Microphone Length as C, and Microphone Diameter as D.

	A	B	C	D
	Cable Length	Cable Diameter	Microphone Length	Microphone Diameter
UL4	66 in. (1.67 m)	1.6 mm	17 mm	5 mm

Frequency Response

Polar Pattern

A graph showing the typical polar pattern of UL4.

Wiring and Termination

Typical Wiring Table

Series	Cable Construction	Electrical Design	Polarity	Replacement Connector	For Use With	Wiring	Line Art (From Solder Side)
UL4-MTQG	1.6 mm cable with 2 conductors, 2 shield wires and shield	3-Wire (Source Follower)	Positive with respect to ground	WA430	All Shure TA4F Bodypacks	Red wire: Bias (2) Blue wire: Audio (3) Shield wire: Ground (1) Shield: Ground (Shell)
UL4-LEMO	1.6 mm cable with 2 conductors, 2 shield wires and shield	2-Wire (Common Source)	Negative with respect to ground	WA416	Shure Lemo bodypacks (ADX1-Lemo, Shure UR1M-Lemo, ULXD1-Lemo)	Red wire: Audio/Bias (3) Blue wire: Bias (2) Shield wire: Ground (1)

Series

Cable Construction

Electrical Design

Polarity

Replacement Connector

For Use With

Wiring

Line Art (From Solder Side)

UL4-MTQG

1.6 mm cable with 2 conductors, 2 shield wires and shield

3-Wire (Source Follower)

Positive with respect to ground

WA430

All Shure TA4F Bodypacks

Red wire: Bias (2)

Blue wire: Audio (3)

Shield wire: Ground (1)

Shield: Ground (Shell)

A wiring diagram showing the shield wire, blue wire, and red wire.

UL4-LEMO

1.6 mm cable with 2 conductors, 2 shield wires and shield

2-Wire (Common Source)

Negative with respect to ground

WA416

Shure Lemo bodypacks (ADX1-Lemo, Shure UR1M-Lemo, ULXD1-Lemo)

Red wire: Audio/Bias (3)

Blue wire: Bias (2)

Shield wire: Ground (1)

A diagram showing the shield wire, red wire, and blue wire of UL4.

MTQG Connector Assembly

Exploded View

Note: Make sure to solder the shield to ground collar.

Assembled View

Certifications

Note: Testing is based on the use of supplied and recommended cable types. The use of other than shielded (screened) cable types may degrade EMC performance.

The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance

Authorized European representative:

Shure Europe GmbH

Global Compliance

Jakob-Dieffenbacher-Str. 12

75031 Eppingen, Germany

Phone: +49-7262-92 49 0

Email: info@shure.de