CAD Audio IEMTXN Wireless In-Ear Monitor System User Manual
CAD Audio, LLC Wireless In-Ear Monitor System
User manual

CAD Audio
6573 Cochran Rd., Bldg.I  Solon, OH 44139 U.S.A.
Tel: (440) 349-4900  Fax: (440) 248-4904
Sales: 800-762-9266  cadaudio.com
©2016 CAD Audio  Part No. 62264-37-02 July2016
StageSelectTM IEM
Stereo Wireless  
In-ear Monitor  
System
Manual and
Quick Start-up Guide
Individuals with cardiac pacemakers and other similar medical devices should consult with their 
physician before using any RF devices.  Though the output level of this wireless system is below 50 
milliwatts, the proximity of the transmitter to the implant device could pose a threat.
As with any wireless product, environmental conditions can reduce or in some cases prohibit a 
successful connection between the transmitter and the receiver.  
This device complies with Part 15 of the FCC Rules. Most users of  
CAD Audio wireless products in the United States do not need a license for operation.  However, the 
rules for unlicensed operation state that this device must not operate in excess of 50 milliwatts and it 
must not cause harmful interference to other wireless devices, and must accept interference received 
from other devices.  Wireless products meeting CAD factory standards adhere to these rules.  The 
FCC reserves the right to change these rules at any time.  For more information contact the FCC at 
1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at:
www.fcc.gov/cgb/wirelessmicrophones 
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the 
following two conditions: (1) this device may not cause interference, and (2) this device must accept 
any interference, including interference that may cause undesired operation of the device.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type 
and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential 
radio interference to other users, the antenna type and its gain should be so chosen that the equivalent 
isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut fonctionner 
avec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur par Industrie 
Canada. Dans le but de réduire les risques de brouillage radioélectrique à l’intention des autres 
utilisateurs, il faut choisir le type d’antenne et son gain de sorte que la puissance isotrope rayonnée 
équivalente (p.i.r.e.) ne dépasse pas l’intensité nécessaire à l’établissement d’une communication 
satisfaisante.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts 
de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas 
produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, 
même si le brouillage est susceptible d’en compromettre le fonctionnement.
Two-Year  Limited Warranty
CAD Audio hereby warrants that this product will be free of defects in material and workmanship for a 
period of two years from the date of purchase. In the unlikely event that a defect occurs CAD Audio will, 
at its option, either repair or replace with a new unit of equal or greater value. Retain proof of purchase to 
validate the purchase date and return it with any warranty claim.
This warranty excludes exterior nish or appearance, damage from abuse, misuse of the product, use 
contrary to CAD Audio’s instructions or unauthorized repair. All implied warranties, merchantability, or tness 
for a particular purpose is hereby disclaimed and CAD Audio hereby disclaims liability for incidental, special 
or consequential damages  
resulting from the use or unavailability of this product.
This warranty gives you specic legal rights and you may have other rights that vary from state to state. 
Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on 
how long an implied warranty lasts, so the above exclusions and  
limitations may not apply to you.
Note: No other warranty, written or oral is authorized by CAD Audio.
2
StageSelectTM IEM 
Introduction
Enjoy the exciting performance of the StageSelect™ IEM for your next 
gig. CAD Audio has been creating high-value product since 1931 and 
prides itself on supporting and developing the live performer. Our 
design criterion was straightforward: develop a high-performance 
wireless In-ear Monitor System that will deliver superior audio 
performance while supplying advanced frequency agility, capable 
enough to cope with today’s dynamic RF environment – make it both 
easy to use and exciting to operate.
The StageSelect™ IEM Stereo Wireless In-ear Monitor System features 
16 channel frequency agile performance for outstanding connectivity. 
Stereo operation lends exibility of use – You may send discrete 
signals to the left or right channel. High-performance MEB2 Monitor 
Earbuds are included to make your listening experience top ight. The 
MEB2 TruPitch™ Balanced-armature Earbuds provide accurate audio 
reproduction while the EasyFit™ silicon earmolds provide a custom t. 
The metal construction rack mountable transmitter is supplied with rack 
ears, half-wave antenna, antenna-relocation kit and sturdy carry case.
The StageSelectTM IEM Stereo Wireless In-ear Monitor System 
includes the following features:
  •  16 Channel UHF Agility for frequency plan exibility
  •  Stereo Operation for discrete Right/Left transmission via 
    combination XLR-1/4" connectors
  •  MEB2 TruPitch™ Balanced-armature Earbuds provide accurate  
    audio reproduction while the EasyFit™ Silicon molds provide  
    a custom t
  •  AA batteries with >10hrs of battery life
  •  Metal Chassis Transmitter for a durable and formidable  
    shielded enclosure
  •  Transmitters have SofttouchTM Switches with multicolor  
    LED indicators of On/Mute and Low Battery
  •  1/4" and XLR-type outputs for interfacing exibility
  •  Includes carry case, rack ears and antenna-relocation kit 
7
WARNING!
USE AS LOW A VOLUME AS POSSIBLE. PERMANENT HEARING 
DAMAGE CAN RESULT FROM USING THIS SYSTEM AT  
EXCESSIVE VOLUMES.
For safe operation of this in-ear monitor system, do not listen at  
excessive sound pressure levels.
Most national safety and health administrations have established  
guidelines for maximum time being exposed to sound pressure levels 
before hearing damage occurs.
  85 dB(A) SPL at 8 hours
  88 dB(A) SPL at 4 hours
  91 dB(A) SPL at 2 hours
  94 dB(A) SPL at 1 hour
  97 dB(A) SPL at 30 minutes
  100 dB(A) SPL at 15 minutes
  120 dB(A) SPL — avoid or hearing damage may occur
In live settings it is difcult to make exact measurements of Sound 
Pressure Levels (SPL) present at the eardrum, which is affected not only 
by the In-ear Monitor volume, but by ambient sound on the stage and 
other factors.
To protect your ears from hearing damage:
  •  Use the in-ear monitor system at the lowest volume possible;  
    turn up the volume only enough to hear.
  •  Be aware that ringing in your ears may indicate that the volume  
    is set too high.
  •  Have your ears examined regularly by an audiologist.
  •  If wax builds up in your ears, stop using the in-ear monitor system 
    until you have seen an audiologist.
  •  To avoid infections, use an antiseptic to wipe the earphones  
    before and after using the system.
  •  Stop using the earphones if you experience ear discomfort  
    or infection.

3
6
1.
Transmitter power switch
2.
Transmitting antenna
3.
Channel up/down button
4.
Channel display
5.
Audio level meter
6.
1/4" monitor headphone jack
7.
Monitor volume control
8.
Power input
9.
Mono/Stereo selector
10.
Left audio (AF) input
11.
Right audio (AF) input
12.
Left audio (AF) level control
13.
Right audio (AF) level control
14.
Transmitting antenna connector
2
1 3 4 5 6 7
Transmitter TXIEM
Bodypack Receiver BPIEM
8 9 10 11 12 13 14
Specications BPIEM
Receiving Frequency ..................................................520.000 - 538.950 MHz
Frequency Response ................................................................40Hz – 16KHz
Dynamic Range ................................................................................ >101dBA
Maximum Output Power ............................................. 100mW into 32ohms
Dimensions ...............................................2-9/16" [6.5cm] x 4-1/2" [11.4cm]
    x 7/8" [2.2cm]
Net Weight .................................................................................... 3.2oz [91g]
Power Requirements ............................................................ 2x AA batteries
Battery Life .................................... >=10hrs, high-quality alkaline batteries
3
4 5
6
78
9
 1.   Power/volume control
 2.  1/8" (3.5mm) monitor connector
 3.  Receiving antenna
 4.  RF (radio frequency)  
    signal indicator
 5.  AF (audio frequency)  
    signal indicator
 6.  Channel display
 7.  Channel up button
 8.  Channel down button
 9.  Battery door
 10. Belt clip
1 2
10
12 3
Channelization
The StageSelect™ IEM has 16 selectable UHF channels.
Channel indicators 1 through 16 are displayed on the receiver. 
Corresponding frequencies (in MHz) are listed below.

4 5
Specications TXIEM
Transmitting Frequency  520.000 - 538.950 MHz
Frequency Response ................................................................40Hz – 16KHz
Transmitting Power.........................................................................0.132mW
Modulation ................................................................................................ FM
Maximum input level ........................................................................+20dBV
Dynamic Range ................................................................................ >101dBA
Power Requirements ..................................................... 12 - 18VDC, 300mA
Dimensions .................................................8-3/8" [21.2cm] x 3-3/4" [9.5cm]
    x 1-3/4" [4.4cm]
Net Weight .............................................................................. 1lb 4oz [.55Kg]
Specications MEB2 In-ear Monitors
Operating Principle
.........................................Balanced Armature dynamic
Sensitivity
.................................................................................142dB@1mW
Impedance
................................................................................................ 22Ω
8 of the channels can be used at any one time if optimal atmospheric 
conditions exist.
CH 1 , CH 2, CH 4, CH 8, CH 10, CH 14, CH 15 and CH 16 are 
recommended for simultaneous usage.
*These frequencies have been approved for use within the United 
States and Canada as of the date of publication of this manual. It is the 
user’s responsibility to comply with local regulations.
**These frequencies have been approved for use within the United 
States, Canada and Australia as of the date of publication of this 
manual. It is the user’s responsibility to comply with local regulations.
CH
MHz
1
520.000
2
521.050
3
522.300
4
523.000
5
523.750
6
524.550
7
525.450
8
526.300
9
527.300
10
528.500
11
529.900
12
531.900
13
533.800
14
535.100
15
536.600
16
538.950
§ 15.19 Labelling requirements.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
 condition that this device does not cause harmful interference.
§ 15.21 Information to user.
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
§ 15.105 Information to the user.
Note: This equipment has been tested and found to comply with the limits for a Class B
 digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
 provide reasonable protection against harmful interference in a residential installation. 
This equipment generates uses and can radiate radio frequency energy and, if not
 installed and used in accordance with the instructions, may cause harmful interference
 to radio communications. However, there is no guarantee that interference will not
 occur in a particular installation. If this equipment does cause harmful interference to
 radio or television reception, which can be determined by turning the equipment off
 and on, the user is encouraged to try to correct the interference by one or more of the
 following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the
 receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
* RF warning for Portable device:
The device has been evaluated to meet general RF exposure requirement. The device
 can be used in portable exposure condition without restriction.