
TL45, TL46, TL47, TL48
™
TwinPlex Lavalier Microphones
The Shure TwinPlex Lavalier online user guide.
Version: 11 (2019-I)

Table of Contents
TL45, TL46, TL47, TL48TwinPlex™ Lavalier Microphones 3
General Description 3
Features 4
Model Variations 4
The Shure TwinPlex Cartridge 5
Care and Maintenance 6
TwinPlex Accessories Quick Start 6
Frequency Caps 6
Attaching the Windscreen 7
Lavalier Standoff 7
Tie Clip 8
Dual Tie Clip 8
Vampire Clip 8
Sticky Mount 8
Sticky Vampire Clip 9
Lavalier Distance 9
Threaded Mount Instructions 9
Shure Incorporated
Specifications 9
Frequency Response 13
Accessories 13
Replacement Parts 13
Furnished Accessories 14
Optional Accessories 14
Wiring and Termination 15
Typical Wiring Table 15
Converting LEMO to TA4F 16
TA5F Wiring for Lectrosonics Bodypacks (Servo Biased
Wiring) 17
Hirose Wiring for Sony Bodypacks 17
MTQG Connector Assembly 19
RPM400 Preamplifiers 19
Features 19
Preamplifier Mounting Kit 19
Specifications 20
Certifications 22
2/22

TL45, TL46, TL47, TL48
™
TwinPlex Lavalier Microphones
General Description
Shure Incorporated
The Shure TwinPlex subminiature omnidirectional lavaliers are designed to perform better than other 5 mm lavalier micro
phones for professional theater, film, tv, and corporate events. The TwinPlex dual-diaphragm technology yields extraordinary
gainbeforefeedback, offaxis response, and low selfnoise while delivering lifelike, exceptional clarity free of digital interfer
ence. The cable itself is ultra quiet and has been tested to be the longest-lasting, most dependable cable in its class. The Twin
Plex series features the most extensive accessories and connector options to date. TwinPlex 5 mm lavs not only meet premi
um market-leading expectations, they exceed them.
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Features
•
Exceptional sound quality from the all new TwinPlex dual-diaphragm element
◦
Robust low frequency response with flat top end
◦
Best in class specifications and dynamic range
◦
Consistent off axis response results in increased gain before feedback
•
Durability beyond the competition
◦
Exclusive, double helix cable technology with redundant grounding
◦
Nanocoated frequency caps for reduced sweat out
•
Comprehensive accessories and microphone offerings
◦
Over 60 color, sensitivity, frequency response, and connector options available
◦
All new clips, mounts, and accessories designed on extended research and field testing
•
High RF immunity for use with today's digital wireless systems.
•
Paintable cables allow for discreet placement in professional theater applications.
•
Interchangeable frequency response caps offer adjustable flat or presence responses (TL45, TL46, TL47).
Model Variations
Shure TwinPlex lavaliers are available in a variety of connector and sensitivity levels.
Shure Incorporated
Model Sound Sensitivity Connector Cable Type
TL45 series Natural Low LEMO 1.1mm (Paintable)
TL46 series Natural High LEMO, MTQG 1.6mm (Paintable)
TL47 series Natural Low
TL48 series Speech Low
LEMO, MDOT, MTQG,
XLR, NC
LEMO, MDOT, MTQG,
NC
1.6mm (Paintable)
1.6mm (Paintable)
Model Variations Key
Series Color Polar Pattern Connector Accessories
TL45 B: Black O: Omnidirectional
LEMO: LEMO3 body
packs
A: Accessories includ
ed
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Shure Incorporated
Series Color Polar Pattern Connector Accessories
TL46 C: Cocoa
TL47 T: Tan
TL48 W: White NC: no connector
Note: Not all model variations are available. Refer to www.shure.com/twinplex for the most up to date offerings.
MTQG: TA4F/TQG Shure
bodypacks
XLR: includes XLR pre
amplifier
MDOT: MicroDot (re
quires adapter)
The Shure TwinPlex Cartridge
Over 6 years in development, the patent pending, TwinPlex Omnidirectional element was designed to offer best in class sound
quality and specifications of any lavalier to date. It utilizes a dual-diaphragm design with two side firing elements as opposed to
a single, end fired design. By essentially doubling the surface area of the diaphragm in the same amount of space, the Twin
Plex design offers robust low frequency response, exceptional off-axis consistency, increased gain-before-feedback and low
handling noise, resulting in a new tier of performance for 5mm microphones.
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Shure Incorporated
TwinPlex cartridge exploded view
① Diaphragm Assembly
② Spacer Washer
③ Backplate Assembly
④ Contact Spacer
⑤ Nest
⑥ PCB
Care and Maintenance
The TwinPlex lavalier dual-diaphragm has a nanocoating which rejects the build-up of grit from sweat and water. It is designed
to withstand being blown out with a can of air for quick clean-up.
TwinPlex Accessories Quick Start
Frequency Caps
TL45 / TL46 / TL47
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Attaching the Windscreen
Shure Incorporated
TL48
Lavalier Standoff
7/22

Tie Clip
Dual Tie Clip
Shure Incorporated
Vampire Clip
Sticky Mount
8/22

Sticky Vampire Clip
Lavalier Distance
Shure Incorporated
Threaded Mount Instructions
9/22

Specifications
Shure Incorporated
All specification values are based on using a typical bodypack with 5 V bias input or the RPM400MTQG preamplifier. When using the RPM400LEMO
amplifier, refer to the RPM400LEMO specifications.
[1]
Microphone Capsule
Dual-Diaphragm, Prepolarized Condenser
Polar Pattern
Omnidirectional
Frequency Response
20 Hz to 20 kHz
Sensitivity
TL46 -37.0 dBV(14.1 mV)at 1 kHz
TL45, TL47, TL48 -45.0 dBV(5.62 mV)at 1 kHz
[2]
[2]
Self-Noise, A-Weighted, Equivalent Acoustical
TL46 24.0 dB SPLA
TL45, TL47, TL48 24.5 dB SPLA
Signal-To-Noise Ratio
TL46 70.0 dB
TL45, TL47, TL48 69.5 dB
[3]
Output Clipping Level
3.0 dBV,1 kHz at 1% THD, typical
Maximum SPL
TL46 134.0 dB SPL,1 kHz at 1% THD, typical
TL45, TL47, TL48 142.0 dB SPL,1 kHz at 1% THD, typical
[4]
Dynamic Range
TL46 110.0 dB typical
TL45,TL47, TL48 117.5 dB typical
Microphone Current Draw
120 to 240 µA, typical
Bias Voltage
Recommended Operating Voltage
5 V DC
Housing
Molded ABS
10/22

Polarity
Shure Incorporated
MTQG, XLR connector
LEMO, NC, MDOT
Positive pressure on diaphragm produces positive voltage
on pin 3 with respect to pin 1
Positive pressure on diaphragm produces negative voltage
on pin 3 with respect to pin 1.
Cable Diameter
TL45 1.1 mm
TL46, TL47, TL48 1.6 mm
Cable Length
MTQG, LEMO, MDOT 66 in. (1.67 m)
NC, XLR connector 96 in. (2.43 m)
Net Weight
with cable
12.0 g(0.42 oz.)
[1]
All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slight
ly decreased headroom and sensitivity.
[2]
1 Pa=94 dB SPL
[3]
S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
[4]
THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL
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Dimensions
Shure Incorporated
A B C D
Cable Length Cable Diameter Microphone Length Microphone Diameter
TL45 66 in. (1.67M) 1.1MM 13.5MM 5.6MM
TL46 66 in. (1.67M) 1.6MM 13.5MM 5.6MM
TL47-MTQG, TL47-MDOT, TL47-
LEMO
TL47-XLR, TL47-NC 96 in. (2.43M) 1.6MM 13.5MM 5.6MM
TL48-MTQG, TL48-MDOT, TL48-
LEMO
TL48-XLR, TL48-NC 96 in. (2.43M) 1.6MM 19MM 5.3MM
66 in. (1.67M) 1.6MM 13.5MM 5.6MM
66 in. (1.67M) 1.6MM 19MM 5.3MM
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Frequency Response
Shure Incorporated
TL45 / TL46 / TL47
TL48
Accessories
Replacement Parts
MTQG/TA4F 4-pin Connector (Shure Bodypacks) WA430
Neutrik MTQG 5-pin Connector Kit (Lectrosonics Bodypacks) WA435
TL45 Lemo Connector for 1.1mm cables WA411
TL46/47/48/TH53 Lemo Connector for 1.6mm cables WA416
MicroDot adapters for -MDOT versions
MicroDot to LEMO 3 Pin for Shure and Sennheiser Bodypacks MD40LEMO
MicroDot to TA4F/TQG for (Shure Bodypacks) MD40TA4F
®
®
® ®
®
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Shure Incorporated
MicroDot to TA5F/TQG (Lectrosonics Bodypacks) MD40TA5F
®
Furnished Accessories
-A Series
Frequency Caps, Flat Response* RPM40FC
Frequency Caps, Presence Response* RPM40PC
Single Tie Clip RPM40STC
Dual Tie Clip RPM40TC
Standoff for Clips RPM40SO
Vampire Mount RPM40VM
Sticky Vampire Mount RPM40SVM
Foam Windscreen RPM40WS
Clear Sticky Mount RPM40SM
Sticky Mount Adhesives (15 Pieces) RPM40TS
Sticky Mount Adhesives (50 Pieces) RPM40TS/50
Neutrik Threaded Shell for WA430/WA435 WA445
Storage Case RPM40CASE
*Not furnished with TL48
Accessories are available in Black (/B), Tan (/T), Cocoa (/C), White (/W), and Mixed (/M) color varieties. Please consult your
Shure representative for available options.
-XLR Series
TA4F/TQG XLR Preamplifier RPM400TQG
Lemo XLR Preamplifier RPM400LEMO
Belt Clip for XLR Preamplifier RPM40PRECLIP
Mounting Kit for XLR Preamplifier RPM40PREMNT
Optional Accessories
Magnet Mount RPM40MM
®
Rycote Mini-WindJammer (Gray) RPM40MWJ
Accessory Kit for TL Microphones RPM40KIT
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Magnet Mount is available in Black (/B) and White (/W) options.
Note: Optional accessories are not furnished with -A models.
Wiring and Termination
Typical Wiring Table
Shure Incorporated
Series
TL45-
LEMO
TL46-
MTQG,
TL47-
MTQG,
TL48-
MTQG
Cable
Con
struc
tion
1.1mm
cable
with
single
con
ductor
and
shield
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
Electri
cal De
sign
2-Wire
(Com
mon
Source)
3-Wire
(Source
Follow
er)
Polari
ty
Nega
tive
with
re
spect
to
ground
Posi
tive
with
re
spect
to
ground
Re
place
ment
Con
nector
WA411
WA430
For Use
With
Shure Lemo
Bodypacks
(AD1/ADX1-
Lemo, Shure
UR1M-
Lemo,
ULXD1-
Lemo),
Sennheiser
SK5212,
Lectrosonics
SSM, and
others
All Shure
TA4F Body
packs
Wiring Line Art (From Solder Side)
Red wire: Audio/
Bias(3)
Shield: Ground(1)
Red wire: Bias(2)
Blue wire: Audio(3)
Shield wire: Ground(1)
Shield: Ground (Shell)
TL46-
LEMO,
TL47-
LEMO,
TL48-
LEMO
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
2-Wire
(Com
mon
Source)
Nega
tive
with
re
spect
to
ground
WA416
Shure Lemo
bodypacks
(ADX1-
Lemo, Shure
UR1M-
Lemo,
ULXD1-
Lemo),
Sennheiser
SK5212,
Lectrosonics
Red wire: Audio/
Bias(3)
Blue wire: Not con
nected
Shield wire: Ground(1)
15/22

Shure Incorporated
Series
TL47-
NC,
TL48-
NC
Cable
Con
struc
tion
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
Electri
cal De
sign
2-Wire
(Com
mon
Source)
Polari
ty
Nega
tive
with
re
spect
to
ground
Converting LEMO to TA4F
Re
place
ment
Con
nector
LEMO:
WA416,
Shure
TQG/
TA4F:
WA430,
Lec
troson
ics
TA5F:
WA435
For Use
With
SSM, and
others
Termination
Dependent
Wiring Line Art (From Solder Side)
Red wire: Audio/Bias
Blue wire: Not con
nected
Shield wire: Ground
Shield: Ground (Shell)
Series
TL45-
LEMO
TL46-
LEMO,
TL47-
LEMO,
TL48-
LEMO
Cable
Con
struc
tion
1.1mm
cable
with
single
con
ductor
and
shield
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
Electri
cal De
sign
2-Wire
(Com
mon
Source)
2-Wire
(Com
mon
Source)
Polari
ty
Nega
tive
with
re
spect
to
ground
Nega
tive
with
re
spect
to
ground
Re
place
ment
Con
nector
Shure
TQG/
TA4F:
WA430
Shure
TQG/
TA4F:
WA430
For Use
With
Termination
Dependent
Termination
Dependent
Wiring Line Art (From Solder Side)
Shield: Ground(1)
Red wire: Audio/
Bias(3)
8.25kΩ Resistor be
tween pin 2 and 3
Shield: Ground(Shell)
Shield wire: Ground(1)
Red wire: Audio/
Bias(3)
Blue wire: Not con
nected
8.25kΩ Resistor be
tween pin 2 and 3
Shield: Ground(Shell)
16/22

TA5F Wiring for Lectrosonics Bodypacks (Servo Biased Wiring)
Shure Incorporated
Series
TL46-
MTQG,
TL47-
MTQG,
TL48-
MTQG
TL46-
LEMO,
TL47-
LEMO,
TL48-
LEMO,
TL47-
NC,
TL48-
NC
Cable
Con
struc
tion
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
Electri
cal De
sign
3-Wire
(Source
Follow
er)
2-Wire
(Com
mon
Source)
Polari
ty
Posi
tive
with
re
spect
to
ground
Nega
tive
with
re
spect
to
ground
Re
place
ment
Con
nector
WA435
WA435
For Use
With
Lectrosonics
TA5F body
packs
Lectrosonics
TA5F body
packs
Wiring Line Art (From Solder Side)
Red wire: Bias(3)
Blue wire: Audio(5)
Shield wire: Ground(1)
Shield: Ground(Shell)
Jumper between 2 and
4
Red wire: Audio/
Bias(3)
Blue wire: Not con
nected
Shield wire: Ground(1)
Shield: Ground(Shell)
Jumper between 2 and
4
Hirose Wiring for Sony Bodypacks
Notes:
•
When using TwinPlex mics with Sony Hirose 4pin bodypacks, Shure recommends purchasing Shure –MTQG versions
and not –NC versions. This facilitates an easier termination due to the lack of circuitry required in Shure 3wire/MTQG
TA4F products.
•
Due to the thin cable on TwinPlex and the large boot on Hirose connectors, heat shrink may be required to build up the ca
ble under the boot where the crimp connection is made and where the cable exits the boot
•
The TwinPlex Microdot (-MDOT) version can be used with 4-pin Hirose adapters from DPA (DPA part # DAD6008)
17/22

Shure Incorporated
Series
TL45-
LEMO
TL46-
LEMO,
TL47-
LEMO,
TL48-
LEMO,
TL47-
NC,
TL48-
NC
Cable
Con
struc
tion
1.1mm
cable
with
single
con
ductor
and
shield
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
Electri
cal De
sign
2-Wire
(Com
mon
Source)
2-Wire
(Com
mon
Source)
PolarityReplacement
Connector
Nega
tive
with
re
spect
to
ground
Nega
tive
with
re
spect
to
ground
Hirose 4-pin-
KMC-9BPD-4P
Hirose 4-pin-
KMC-9BPD-4P
For Use
With
Sony Hirose
Bodypacks
(WRT)
Sony Hirose
Bodypacks
(WRT)
Wiring
Red wire: Audio/Bias:
Into resistor and ca
pacitor
1: 8.2k resistor
2: Jumper to 4
3: 1 uF capacitor (-)
4: Ground/shield-
jumper to 2
Split Shield to shell
Blue wire: not used
Red wire: Audio/Bias:
Into resistor and ca
pacitor
1: 8.2k resistor
2: Jumper to 4
3: 1 uF capacitor (-)
4: Ground/shield-
jumper to 2
Split Shield to shell
Line Art (From Solder
Side)
TL46-
MTQG,
TL47-
MTQG,
TL48-
MTQG
1.6mm
cable
with 2
con
duc
tors, 2
shield
wires
and
shield
3-Wire
(Source
Follow
er)
Posi
tive
with
re
spect
to
ground
Hirose 4-pin-
KMC-9BPD-4P
Sony Hirose
Bodypacks
(WRT)
Blue wire: not used
1: Red wire (Bias)
2: Blue wire (Audio)
3: Jumper to 4
4: Ground/shield-
jumper to 3
Split Shield to shell
18/22

MTQG Connector Assembly
Shure Incorporated
Exploded View
Note: Make sure to solder the shield to ground collar.
Assembled View
RPM400 Preamplifiers
The RPM400 preamplifiers offer exceptional dynamic range utilizing an active gain circuit in a concise and small package.
They are offered in two connector versions: TA4F and LEMO, which allows you to quickly take a wireless TL microphone and
make it a wired solution. These preamplifiers require phantom power and can efficiently operate across a wide range of supply
voltages from 12-48v.
Features
•
Active circuit design with neutral gain mimics wireless for consistent gain output across wired or wireless applications.
•
High RF immunity against unwanted interference.
•
Short, compact design.
•
Belt clip and table mounting kits for easy placement for a variety of applications.
Preamplifier Mounting Kit
TwinPlex XLR microphones include an under table mounting kit for temporarily or permanently mounting the amplifier. It in
cludes preamplifier clip, 4 screws, and premium dual lock adhesive. The mounting kit and accessories are also sold separately.
19/22

Shure Incorporated
Specifications
Output Impedance
100 Ω
Connector
Three-pin professional audio (XLR), male, balanced
Output Clipping Level
3.0 dBV,1 kHz at 1% THD, typical
Microphone Bias
5 V DC
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Sensitivity
TL46 into RPM400LEMO -31.0 dBV(28.2 mV)at 1 kHz
TL45, TL47, TL48 into RPM400LEMO -39.0 dBV(11.2 mV)at 1 kHz
[2]
[2]
TL46 into RPM400MTQG -37.0 dBV(14.1 mV)at 1 kHz
TL45, TL47, TL48 into RPM400MTQG -45.0 dBV(5.62 mV)at 1 kHz
Maximum SPL
TL46 into RPM400LEMO 128.0 dB SPL,1 kHz at 1% THD, typical
[4]
[2]
[2]
20/22

TL45, TL47, TL48 into RPM400LEMO 136.0 dB SPL,1 kHz at 1% THD, typical
TL46 into RPM400MTQG 134.0 dB SPL,1 kHz at 1% THD, typical
TL45, TL47, TL48 into RPM400MTQG 142.0 dB SPL,1 kHz at 1% THD, typical
Dynamic Range
TL46 into RPM400LEMO 104.0 dB typical
TL45, TL47, TL48 into RPM400LEMO 111.5 dB typical
TL46 into RPM400MTQG 110.0 dB typical
TL45, TL47, TL48 into RPM400MTQG 117.5 dB typical
Power Requirements
MTQG 11–52 V DC phantom power, 4.8 mA
[1]
Shure Incorporated
LEMO 11–52 V DC phantom power, 5.5 mA
[1]
All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slight
[1]
ly decreased headroom and sensitivity.
[2]
1 Pa=94 dB SPL
[3]
S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
[4]
THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL
Dimensions
21/22

Shure Incorporated
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 per
formance.
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
22/22