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Nady In-Ear Monitor System AA AA / Mfr. No.: Eo3 AA

Nady In-Ear Monitor System AA AA / Mfr. No.: Eo3 AA
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Thank you for choosing the Nady EO3 Personal In Ear Monitor™ wireless system, we know you will be very pleased with its performance and features. The EO3 provides high quality, yet cost-effective in-ear monitoring to on stage performers or behind the scenes personnel. The system is designed to be very easy to use and requires no installation.

The EO3 consists of one wireless transmitter (EO3-T) and one or more wireless bodypack receivers (EO3-R) on the same channel. The transmitter features eight factory switchable channels; the receivers are single channel units that operate on one of eight channels in the 72-76 MHz band, with wide band modulation for quality audio. These frequencies are in a separate band that will not interfere with simultaneous use of VHF or UHF wireless systems on the same stage.

The EO3 system has a wireless operating range of 300 feet, which allows it to be used with confidence in venues from small clubs to large theatres.

The transmitter connects to a monitor or line out from any mixing console, and broadcasts the audio as an FM signal to any number of pocket size Nady EO3 receivers on the same channel. Each receiver is equipped with an adjustable volume control, and high performance earbuds. Earphone enhancers-unique clear soft plastic inserts that can help secure the earbuds-are included. The transmitter also provides a microphone input to allow wireless cueing of the performers on stage.

The EO3 can provide a high quality monitor mix at significantly lower decibel levels than floor monitors. This is an important benefit for artists who wish to protect their hearing from excessive and potentially damaging sound pressure levels.

General Information

ManufacturerNady System, Inc
Manufacturer Part NumberEO3AA
Manufacturer Website Address
Product ModelEO3
Product NameEO3 Pocket-sized VHF Wireless in-ear Monitoring System
Product TypeWireless Microphone System

Technical Information

System Operating Frequency72.10 MHz VHF
System Frequency Response100 Hz to 10 kHz
Signal to Noise Ratio (SNR)60 dB
Operating Range300 ft


Interfaces/Ports1 x Mini-phone Audio Out - Receiver


Status IndicatorsReciever:
  • LED Power On indicator
  • Power On LED
  • Audio Modulation
  • TX LED Indicator

Battery Information

Battery ChemistryAlkaline
Battery Run Time20 Hour

Power Description

Input Voltage9 V DC

Physical Characteristics

Weight (Approximate)1.14 lb - Transmitter


Package Contents
  • EB-3 Earphones
  • 1 x EO3-T Transmitter
  • 1 x EO3-R Receiver
Additional InformationOverall System Performance:
  • Total Harmonic Distortion < 0.5%
  • Channel AA
  • Frequency Stability Better than .005%
  • Modulation FM ± 75 KHz

EO3-T Transmitter:
  • Impedance: 100 K Ohms, unbalanced
  • Mic Input Connector: One 1/4" phone jack
  • Impedance: low impedance, unbalanced, with 9 VDC at 1 mA for condenser mic
  • Power Output 80,000 µV @ 3 meters
  • Controls Power On/Off, audio input gain adjust
  • Antenna Permanently mounted telescoping whip
  • Dimensions 1.25" H, 8.25" W, 4.25" D (3.175 x 20.9 x 10.8 cm)

EO3-R Receiver:
  • Controls Combination volume/on-off wheel
  • Audio Output 100 mW max into 16 Ohms
  • Earphones Binaural EB-3 earbuds with optional-use EMI soft rubber inserts
  • Antenna Integral with earbud cord
  • Sensitivity 2 µV for 12 dB Sinad with squelch defeated
  • Squelches at 10 µV for min. 50 dB S-N ratio
  • Mute Threshold 8-10 µV
Certifications & StandardsFCC Rules Parts 90, 74 and 15


Limited Warranty1 Year