User and Installation

Guide

5.8 GHz DIGITAL

Wireless Headphones

Model 500

User and Installation Guide

Unpacking: Check that this package contains:

One set of 5.8 GHz Digital Wireless Headphones, one 5.8 GHz Digital Audio transmitter, one AC adapter, one dual RCA audio cable, two AA batteries.

Step 1

Connecting the transmitter

The transmitter connects to a line-out interface via the supplied RCA cable.

Most audio devices provide a line-out interface.

If no line-out interface is available, the transmitter can also be connected to other audio outputs by using an appropriate adapter. It should be noted that the audio level of the audio output should conform to the standard line output level (V ± 2.8 V maximum).

pp

If the audio level is too low, the dynamic range of the transmitter is not fully used. If the audio level is too high, clipping at high audio levels may occur. If clipping occurs, either use an adjustable output (such as a headphones output) or use an Amphony audio level attenuator.

Connect the DC power input with the supplied AC adapter. The use of a surge protector is recommended to protect the transmitter from power surges.

AUDIO

IN

L R

DATA

OUT

Transmitter

DC 9V

AC adapter

DC 9 V

300 mA

AUDIO

LINE OUT

L R

Audio Source

Power outlet

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User and Installation Guide

Step 2

Placing the transmitter

The operating range essentially depends on how many obstacles there are between the transmitter and the headphones. Therefore, it should be carefully considered where to place the transmitter.

Below, two examples are given. In the first example, there are 4 walls between the transmitter and the receiver. The transmission may be interrupted. By locating the transmitter such as in the second example, reliable transmission to all of the 6 rooms is possible.

Also, the elevation of the transmitter as well as the presence of reflecting walls will influence the range.

It is suggested to experiment in order to find the best location for the transmitter.

Example 1: Poorly chosen transmitter location

Example 2: Improved transmitter location

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User and Installation Guide

Step 3

Installing the headphone batteries

Two AA (UM-3, R6, Mignon - 1.5 V) batteries are required to operate the headphones. Rechargable batteries with a sufficiently high voltage can be used as well. Choosing batteries with a high capacity (mAh) will extend operating time.

There are two battery compartments, located on both sides, each housing one battery. To access each battery compartment, push on the outer edge of the battery lid. This will release the battery lid. Then lift the middle portion of the battery lid to gain access to the battery compartment.

Insert the battery by pressing the minus pole of the battery against the spring at the bottom of the battery compartment until the plus pole can slide into the battery compartment. The battery should snap into place.

Be sure to only use batteries with a well formed plus pole to ensure proper contact between the plus pole of the battery and the plus pole inside the battery compartment and also to ensure that the battery will not slide out of the battery compartment unintentionally.

Finally, close the battery lid by pushing the middle section. It should snap into the closed position.

To replace the batteries, open the battery lid as described above and pull the battery out of the battery compartment by pushing the battery towards the bottom until the plus pole is released and slides out.

ATTENTION!

Never leave batteries inside the headphones for very long periods of time to prevent any damage to the headphones from leaking batteries. Dispose of spent batteries conforming to local waste disposal rules.

Push 1

Lift

2 3

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User and Installation Guide

Step 4

Operating the headphones

After powering up the transmitter, the transmit light will light for approximately

5 seconds while the transmitter initializes.

After initialization, the transmit light will go out.

Once audio is detected at the audio input, the transmit light will light and the transmitter will transmit the audio signal.

Set the volume control of the headphones to minimum. Then, switch on the headphones and slowly increase volume.

After each use, be sure to switch off the headphones to extend battery life.

When no audio is present anymore, the transmitter will go into standby mode after approximately 1 minute. The transmit light will go out. During standby mode, no signal is transmitted. If the headphones are not used for an extended period of time, remove the AC adapter from the power outlet.

ATTENTION!

Listening over headphones at high audio levels can cause hearing impairments! Also, switching between different audio sources, connecting and disconnecting the transmitter, and the transmitter going into standby mode can cause loud clicks and pops which can impair your hearing! Therefore, always set the volume control to minimum.

Transmit light

AN

SM

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User and Installation Guide

Problems and Solutions Table

What Is

Happening

Transmit light of transmitter does not light when

DC power is applied

Transmit light goes out after 5 seconds and does not light again

No audio at headphones

Audio is distorted

Audio at headphones drops out intermittently

Possible Why

Faulty AC adapter or faul ty power outlet

No audio present at audio input

What to Do

Check the power outlet and the

AC adapter, if possi ble, check for correct voltage of the adapter.

there is audio present.

Transmitter hung up Disconnect and then reconnect

Batt eries em pty or plus contact of batteries deformed

Volum e contr ol at minimum

Check the audio connection to the transmitter and ensure that

DC power.

Check battery voltage, also check that plus contact of both batteries touch plus contact of batt ery compartment, repla ce batt eries if necessary

Slowly increase volume at the headphones

Receiver hung up

Stro ng interference

Switch headphone power off and on

Audio level too high Ensure that the audio level provided by the audio device conforms to the line output level.

If possible, lower the audi o level.

In som e cases, ther e may be stron g interference pr eventi ng proper transmission of the audio signal, such as 5.8 GHz cor dless telephones or wireless networks etc. Try to el iminat e the interference or r elocat e the transmitter.

Batteries empty

Unstable power supply

Check t he batt eries and repl ace them if necessary.

Make sure that the power outlet delivers a st able vol tage. V ery strong surges or voltage fluctuations may cause audio dropouts. Try using a surge protector.

For more information, including a detailed troubleshooting guide, visit the Amphony web site at: www.amphony.com

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User and Installation Guide

Technical Specifications

Transmitter:

Audio transmission method: Digital

Transmitter frequency: 5.8 GHz

Signal-to-Noise ratio (A-weighted): typ. 93 dB

Dynamic range: typ. 93 dB

Channel separation: typ. 91 dB

Harmonic distortion: typ. -88 dB

Error correction: 1/2 rate FEC

Audio sampling method: 64 times oversampling

Transmitted data rate: > 3 Mbps

Data available at high-speed data port

Transmitter operating range:

max. 100 ft. line of sight, max. 30 ft. through walls and ceilings

Headphones:

Type: dynamic, closed

Operating time: max. 100 hours with two AA batteries

Frequency response: 50 Hz ... 20 kHz

Maximum sound pressure level: 110 dB

Copyright (C) 2006 Amphony. All rights reserved.

The information contained herein is subject to change without notice.

Revisions may be issued to advise of such changes and/or additions.

All product names, trade names, or corporate names mentioned in this document are acknowledged to be the proprietary property of the registered owners.

FCC ID PMJT1500

This device complies with part 15 of the FCC Rules. Operation is subjected 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.

Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

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Limited warranty

WHAT YOUR WARRANTY COVERS

This warranty extends only to the original user of the equipment (“you”, ”your”) and is limited to the purchase price of each part. Amphony and it’s affiliated companies (”we”, ”our”, ”us”) warrant this

Wireless Headphone Set against defects in materials or workmanship as follows.

LABOR: For a period of ninety (90) days from the original date of purchase, if we determine that the equipment is defective subject to the limitations of this warranty, we will replace it at no charge for labor.

We warrant any such work done against defects in materials or workmanship for the remaining portion of the original warranty period.

PARTS: For a period of one (1) year from the original date of purchase, we will supply, at no charge, new or rebuilt replacement parts in exchange for parts we determine are defective subject to the limitations of this warranty. We warrant any such replacement parts against defects in materials or workmanship for the remaining portion of the original warranty period.

Note: ”Parts” means items included in this package. It does not include other parts purchased separately.

WHAT YOUR WARRANTY DOES NOT COVER

This warranty does not cover consumer instruction, physical setup or adjustment of any consumer electronic equipment, headphone batteries, or signal transmission problems.

This warranty does not cover cosmetic damage, damage due to the affixing of any attachment not provided with the product, loss of parts, connecting the product to any but the specified receptacles, lightning, electrical surges, fire, flood, or other acts of God, accident, misuse, abuse, repair or alteration by other than authorized service personnel, negligence, commercial or institutional use, or improper or neglected maintenance.

This warranty does not cover equipment sold AS IS or WITH ALL FAULTS, equipment removal or reinstallation, shipping damage if the equipment was not packed and shipped in the manner we prescribe, nor equipment purchased, serviced, or operated outside the contiguous United States of

America.

LEGAL LIMITATIONS

REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS YOUR EXCLUSIVE REMEDY. WE

SHALL NOT BE HELD LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR

BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY ON THIS EQUIPMENT, NOR FOR ANY

INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF, OR INABILITY TO

USE, THIS EQUIPMENT. UNDER NO CIRCUMSTANCES SHALL OUR LIABILITY, IF ANY, EXCEED

THE PURCHASE PRICE PAID FOR THIS EQUIPMENT, EXCEPT TO THE EXTENT PROHIBITED BY

APPLICABLE LAW. EXCEPT AS PROVIDED HEREIN, WE MAKE NO WARRANTIES, EXPRESS OR

IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE. WE RESERVE THE RIGHT TO REFUSE TO HONOR THIS WARRANTY IF WE

DETERMINE ANY OF THE ABOVE EXCEPTIONS TO HAVE CAUSED THIS EQUIPMENT NOT TO

HAVE PERFORMED PROPERLY. THIS WARRANTY SHALL BE VOID IF ANY FACTORY-APPLIED

IDENTIFICATION MARK, INCLUDING BUT NOT LIMITED TO SERIAL NUMBERS AND WARRANTY

LABELS, HAS BEEN ALTERED OR REMOVED. THIS WARRANTY SHALL ALSO BE VOID IF THE

TRANSMITTER OR HEADPHONES HAVE BEEN OPENED BY AN UNAUTHORIZED PERSON (with the exception of opening the battery lid on the outside of the headphones).

This warranty gives you specific legal rights which may vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow limitations on the duration of an implied warranty, so those limitations may not apply to you.

Note: No responsibility is assumed for the presence of interference outside of Amphony’s control, such as other transmitters, which may hamper proper signal reception.