Nady Systems EO3FF User Manual

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EO3 Receiver
The EO3 receiver is a pocket sized wireless 
audio receiver with an output for earbuds 
to provide in ear monitoring, and offers 
these features:
Any number of EO3 receivers can be used 
with a single EO3-T transmitter
Ultra compact and lightweight
Preset to one of eight channels in the 
72-76 MHz range
Loudness adjustable with volume 
control—provides up to 130dB in-ear 
monitoring
Antenna is integral with earphone cord
A pair of mini binaural EB-3 earphones 
included, with optional-use EMI soft 
rubber inserts supplied
LED “Power On” indicator
Accepts standard 9V alkaline battery
Channel selection
Your receiver is pre-tuned at the factory 
to the same channel as your transmitter. 
Should you wish to have your transmitter 
channel changed, as explained in the 
Transmitter section of this manual, you 
must also have your receiver(s) retuned as 
well. Contact the Nady Customer Service 
Department for details.
Powering The receiver
Install a 9V battery in Battery Compartment 
(1)
, observing polarity. To preserve battery 
life, always turn the EO3 receiver off 
when it is not in use. When the sound 
becomes weak or distorted, replace the 
battery. The number of hours of operation 
per battery is as follows: carbon zinc type 
battery: 10-12 hours; alkaline battery 
(recommended): 17-20 hours. 
using the earbuds
Simply plug the included earbuds into the 
earphone jack (2) on top of the receiver.
Note: Proper sound levels on stage are essential 
for optimum effectiveness of any in-ear monitor 
system. (See also “Important Note” on page 1). 
If sound levels are high, it is important to properly 
seal out unwanted sound so the earbud can 
be effective in providing proper monitoring. 
Top high end in-ear monitor systems use special 
transducers imbedded in a soft plastic mold of the 
users ear canal. This ensures a perfect seal and 
maximum immunity from bleed through. Such ear 
mold speakers are very expensive and can be 
used with the EO3 for optimum results—call 
Nady Systems for more information.
The EB-3 mono earbud earphones supplied 
with the EO3-R receiver offer great sound 
and can also provide top results if utilized 
properly. If sound pressure levels are high 
and bleed through is a problem, care must 
be taken to ensure a proper fit and a tight 
seal. Although the earphones can often be 
used effectively simply as “Walkman”-style 
earbuds, for best results in high SPL 
environments you must also use the 
supplied EMI-S/M/L soft rubber inserts (5)
Choose the correct size (small, medium 
or large) from the three sets provided for 
a custom fit, and slip over the earphones 
before inserting in your ears. Although the 
maximum volume available may be slightly 
diminished, use of the EMI inserts does 
provide a better sound seal, increased 
immunity from bleed through and mimics 
the results available with custom-made ear 
mold speakers.
Operating the receiver
While wearing your earbuds, turn the 
receiver on by rotating the On/Off volume 
wheel (3)
. The Power On indicator (4) will 
go on. (To turn the receiver off, rotate the 
On/Off/Volume wheel until it clicks, and the 
“Power On” indicator will go out.)