Nady Systems EO3 Manual de usuario

EO3

OWNER’S MANUAL

Personal In-Ear Monitor

Wireless System

Contents

Introduction ............................................................................................................................. 3

Important Note ........................................................................................................................ 3

EO3 Transmitter ...................................................................................................................... 4

EO3 Receiver .......................................................................................................................... 6

Speciﬁcations .......................................................................................................................... 8

Service Information ................................................................................................................. 9

Warranty.................................................................................................................................10

Nady wireless systems are type accepted under FCC rules parts 90, 74 and 15.

This device complies with RSS-210 of Industry & Science Canada. Operation is subject

to the following two conditions: (1) this device may not cause harmful interference and

(2) this device must accept any interference received, including interference that may

cause undesired operation.

Introduction

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.

Please read this manual completely before using your Nady EO3.

Important Note

Just as with any in-ear monitor system, the EO3 works best when used exclusively by all

the performers on stage—without any wedges or side monitors. The high sound pressure

levels produced by ﬂoor monitors (especially if the band plays loud) can bleed through the

in-ear monitor earbuds, in the worst cases, thus hindering their effectiveness. Experiment

with your mix to get the maximum beneﬁt from your EO3.

EO3 Transmitter

The EO3 transmitter is a compact

transmitter that broadcasts on one of eight

channels in the 72-76 MHz band, to any

number of EO3 wireless bodypack receivers

on the same channel. The system provides

a 300 ft. wireless operating range, and

offers these features:

Eight factory switchable channels•

Rear panel input for line level audio•

Front panel input for microphone•

Audio input gain control•

Automatic level control•

Extendible antenna•

9 volt DC input for AC-EO3 9VDC•

regulated power supply adapter provided

Power switch with red LED power•

on indicator

Audio modulation LED indicator•

Setting Up the Transmitter

Your EO3 requires minimum installation.

Simply place the transmitter on any

ﬂat surface, connect your mixing board

to the transmitter’s back panel input

(See Connecting Audio Input below),

connect the included power supply

(as explained below), and the transmitter is

ready to broadcast to any number of EO3

receivers operating on the same channel.

Powering the Transmitter

Connect the AC adapter provided into

the 9V DC jack (1) on the back panel of the

transmitter. Plug the other end into an

AC wall socket. Press Power switch (2).

The Power On LED (3) will light.

Antenna

Extend Antenna (4) fully and position

90 degrees from top of the transmitter.

Connecting Audio Input

The Line In jack (5) on the rear panel lets you

connect the EO3 to your mixing console. This

1/4” mono phone jack accepts an unbalanced

line level audio source at zero dBm nominal

signal level. If your mixer has XLR outputs

only, you will need an XLR-to-phone plug

adapter, available from most electronics

stores and music equipment stores.

Using a Microphone

The Mic jack (7) on the front panel allows

wireless cueing of on stage performers.

Important: This 1/4” mono phone jack is designed

for an electret condenser microphone, and 9V DC

power is present at the input jack. If you wish to

use a conventional dynamic microphone, at least

20 dB more gain is required, and a preamp should

be used. If a preamp is used, be sure to have a

blocking capacitor (1 mfd) between the preamp

output and the EO3 mic input. If a dynamic mic

is plugged into the mic input by mistake, there

should be no damage because the current is

limited to 1.0 mA. If you have any questions,

contact Nady Customer Service (510.652.2411)

or your Nady dealer.

Audio Input Gain Adjustment

You can quickly adjust the transmitter to

obtain optimum performance with the

Input Gain control (8). The audio modulation

indicator LED, marked TX (6) will increase in

brightness as the control is turned clockwise,

and decrease in brightness as the control is

turned counterclockwise. When the “TX”

LED is ﬂashing during transmission, the

transmitter is broadcasting properly. (If the

LED stays off continuously or barely ﬂashes

at all, the input gain needs to be increased.

If the LED stays on continuously and does

not ﬂash during modulation, the input is

overloading and needs to be decreased.)

You will also need to test the transmitter in

use with an EO3 receiver. This procedure is

easy to do, and is explained in the receiver

instructions, which follow.

Conﬁrming Correct Installation

The transmitter’s TX LED (6) will ﬂash

when a microphone or line level signal is

broadcast by the transmitter. If “TX” does

not ﬂash, turn the audio input gain control

clockwise. This will increase audio level

and cause “TX” to ﬂash along with the

program source. When “TX” is ﬂashing,

the transmitter is broadcasting properly.

Test the transmitter with an EO3 receiver.

This procedure is explained in the receiver

instructions.

Note: For the best performance, and to minimize

the possibility of interference from another source,

we suggest you experiment to ﬁnd the minimal

height the antenna must be extended in order to

perform well in your particular environment.

Channel Selection

Channel selection is controlled by

DIP-switches inside the transmitter.

The system is preset at the factory.

Changing the channel can be done quickly

by any qualiﬁed service technician.

Contact your dealer or the Nady Customer

Service Department for details.

Using More Than One EO3 System

You may operate up to three EO3 systems

in the same location. For example, you may

want to use one transmitter to provide a mix

to the rhythm section, a second to provide

a different mix for the vocalist. For multiple

system operation, please observe:

If operating two EO3 transmitters in the•

same location, use Ch. AA and HH (or GG)

If operating three EO3 transmitters in the•

same location, use Ch. AA, EE and HH

(or GG)

Locate the transmitters ten feet or more•

away from the performers wearing

EO3 receivers

EO3 Transmitter (Front Panel)

Channel switches (inside)

EO3 Transmitter (Rear Panel)

7 6 2 3

5 8 1

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.)

EO3 Receiver (Front Panel) EO3 Receiver (Top Panel)

Adjusting Ear Monitor Volume

Listen for your program source, and adjust

receiver volume to a comfortable listening

level. The EO3 receiver is capable of

providing listening levels loud enough to be

heard in use with a rock band. Many bands

use on stage loudness levels that with

repeated exposure could pose a threat to

their hearing. Therefore, it is very important

that the EO3 be used at a reasonable and

comfortable listening level.

Note: A slight hum may be heard if the receiver

is used within six feet of the transmitter. This is

normal and does not affect performance.

Testing Receiver Range

Wearing your receiver and earphones, walk

around the stage area (and sound board

and other areas if crew members are to be

equipped with EO3 receivers) and listen for

audio quality. In certain areas of the room

the audio may disappear or “drop out.”

This is a normal occurrence whenever radio

signals are transmitted inside a building.

If you step away from the “drop out” zone,

the audio will return. If a drop out zone

is within the area of the stage or sound

board(s), it is possible to eliminate the drop

out zone by moving your EO3 transmitter as

little as 12-18 inches in any direction. After

you move the transmitter, “range walk” the

stage and other areas again to check for

consistent reception.

4 3

Inserting EMI into

earphones

EO3 Speciﬁcations

OVERALL SYSTEM PERFORMANCE

Frequency Response 100 Hz - 10KHz ± 3 dB

Signal-to-Noise Ratio 60 dB

Total Harmonic Distortion < 0.5%

RF Carrier Frequencies Eight factory preset channels between 72-76 MHz

Channel AA: 72.1, BB: 72.3, CC: 72.5, DD: 72.7

EE: 72.9, FF: 75.5, GG: 75.7, HH: 75.9

Frequency Stability Better than .005%

Modulation FM ± 75 KHz

Operating Range Up to 300 feet line-of-sight

EO3-T TRANSMITTER

Line Input Connector: One 1/4“ phone jack

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

Indicators Power On LED, Audio Modulation “TX” LED

Antenna Permanently mounted telescoping whip

Power Requirement 9 VDC regulated, @ 200 mA, AC-EO3 adapter provided

Dimensions 1.25” H, 8.25” W, 4.25” D (3.175 x 20.9 x 10.8 cm)

Weight 18.2 oz. (500 g.)

EO3-R RECEIVER

Controls Combination volume/on-off wheel

Audio Output 100 mW max into 16 Ohms

Connectors 3.5 mm mini jack for earbuds output

Earphones Binaural EB-3 earbuds with optional-use EMI soft rubber inserts

Antenna Integral with earbud cord

Indicators LED power on indicator

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

Power Requirement 9V carbon zinc or alkaline battery

Battery Life 17-20 hours with alkaline battery; 10-12 hours with carbon zinc battery

Dimensions 3.35” H, 2.75” W, .75” D (8.5 x 6.5 x 2.25 cm)

Weight 2.65 oz. without battery (73 g)

Speciﬁcations subject to change at any time without prior notice for purposes of product improvement

Service Information

In the U.S. If you are experiencing operational problems with your system, please refer to

the Support page at www.nady.com for assistance. Should your wireless system require

service, please contact the Nady Service Department at (510) 652-2411 to obtain a Return

Authorization (R/A) Number and service quote (if out of warranty). Make sure the R/A

Number is clearly marked on the outside of the package that you are returning.

If your unit is out of warranty, please enclose a cashier’s check or money order (or pay

by credit card) per instructions by the Nady Service Department. Ship your unit prepaid

to: Nady Systems, Service Department, 6701 Shellmound Street, Emeryville, CA 94608.

Include a brief description of the problem you are experiencing. For service of a unit under

warranty, please follow the instructions in the following section.

Outside the U.S. For service or warranty matters please contact the Nady distributor in your

country through the dealer/store from which you purchased this product.

Do not attempt to service this unit yourself as

it can be dangerous and will also void the warranty.

One-Year Limited Warranty

Nady Systems, Inc. warrants to the original consumer purchaser that the unit is free from any defects

in material or workmanship for a period of one year from the date of original retail purchase. If any such

defect is discovered within the warranty period, Nady Systems, Inc. will repair or replace the unit free of

charge, subject to veriﬁcation of the defect or malfunction upon return to Nady Systems. Please do not

return your Nady product to the store where it was purchased as Nady Systems handles your warranty

service directly. Communication with our Service Department is the most efﬁcient means of servicing

your unit and we are dedicated to keeping you a satisﬁed customer.

To the extent permitted by law, any applicable implied warranties, including warranties of merchantability

and ﬁtness are hereby limited to one year from the date of purchase. Consequential or incidental

damages resulting from a breach of any applicable express or implied warranties are hereby excluded.

This warranty is in lieu of all other agreements and warranties, general or special, express or implied

and no representative or person including a Nady dealer, agent, or employee is authorized to assume

for us any other liability in connection with the sale or use of this Nady Systems’ product.

Whereas some states do not allow limitations on how long implied warranties last, and do not allow

exclusion of incidental or consequential damages, the above limitations and exclusions may not apply

to you. This warranty gives you speciﬁc legal rights and you may also have other rights which may vary

from state to state.

This warranty is subject to the following conditions:

1) This system must have been purchased from an authorized Nady dealer and all warranty

service must be performed by Nady’s service department. Any service not performed by Nady

will automatically void this warranty.

2) Items not covered: physical damage resulting from improper handling of the unit in transit from the

factory by the shipper (Nady Systems is not responsible for such damage and all such claims must be

made against the shipping company by the consignee); defects caused by normal wear of the product

(expendable parts are typically connectors, cables, potentiometers, switches and similar components);

damage or defects caused by abuse, neglect, accident, failure to connect or operate the unit in any way

that does not comply with applicable technical or safety regulations, or improper repair, excessive heat

or humidity, alteration or unreasonable use of the unit, causing cracks, broken cases/housings or parts;

damage caused by leaking batteries; ﬁnish or appearance items; items damaged in shipment en route to

Nady Systems, Inc. for repair. The warranty is null and void if any Nady serial number has been removed

or defaced.

How To Obtain Service:

1) If factory service is required, please contact our Service Department at (510) 652-2411 for a return

authorization (R/A) number. Make sure the R/A number is clearly marked on the outside of your package.

(Please note: if an R/A number is not included, our Shipping Department cannot accept your package.)

2) Send the unit back to Nady Systems, 6701 Shellmound Street, Emeryville, CA, 94608, freight pre-paid.

You must include proof of date and place of purchase (i.e., photocopy of your bill of sale) or Nady cannot

be responsible for repair or replacement. Nady Systems, Inc. will not repair, nor be held responsible,

for any units returned without proper identiﬁcation, return address, and R/A number clearly marked

on the package.

3) Per the above, Nady will perform all warranty service and return the unit to you at no charge.

Nady Systems will inform the buyer if product sent in does not meet the terms of this warranty

and will provide a quote for ﬁxing the unit and/or shipping it back exclusively at the buyer’s expense.

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