Amphony 1500 Manual

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User and Installation
Guide
5.8 GHz DIGITAL
Wireless Audio
Transmitter / Receiver
Model 15 00

User and Installation Guide
Page 1
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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, use an adjustable output (such as a headphones output)
instead and a suitable adapter (such as a Y adapter). If the transmitter is
connected to an amplified speaker output, an attenuator is required to lower
the audio level to the maximum permitted transmitter audio level.
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.
L
AUDIO
IN
DATA
OUT
R
DC 9V
L R
AUDIO
LINE OUT
Audio Source
Transmitter
DC 9 V
300 mA
Power outlet
AC adapter
ATTENTION!
Never connect the DATA OUT output to an audio source since this
may damage both the transmitter and the audio equipment !
Unpacking: Check that this package contains:
One 5.8 GHz Digital Audio transmitter, one 5.8 GHz Digital Audio receiver,
two AC adapters, two dual RCA audio cables.

User and Installation Guide
Page 2
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Step 2 Placing the transmitter
The operating range essentially depends on how many obstacles there are
between the transmitter and the receiver. 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.
If sufficient coverage cannot be achieved by changing the location of the
transmitter, then the use of RangeBooster transmitters is suggested. These
RangeBooster transmitters are available as an accessory for your 5.8 GHz
Digital Wireless Audio Transmitter / Receiver from Amphony and can be
located in areas where signal reception is difficult. RangeBooster transmitters
connect to the DATA OUT output of the transmitter via a cable and receive the
signal in a digital format without any degradation. Any number of RangeBooster
transmitters can be used to extend the coverage area.
Note: The operating range of each RangeBooster transmitter is identical to the
operating range of the primary transmitter.
Example 1: Poorly chosen
transmitter location
Example 2: Improved
transmitter location

User and Installation Guide
Page 3
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Step 3 Connecting the receiver
The receiver connects to a line-in interface via the supplied RCA cable. Most
audio devices, such as amplifiers, provide a line-in interface.
If no line-in interface is available, the receiver can also be connected to other
audio inputs by using an appropriate adapter. It should be noted that the
maximum audio level of the receiver output is 1 Vrms (V ± 1.4 V maximum).
pp
Ensure that the connected audio device will accept this audio level.
Connect the DC power input with the supplied AC adapter. The use of a surge
protector is recommended to protect the receiver from power surges which may
damage the receiver or may cause audio dropouts.
ATTENTION! Do not connect the receiver audio output directly to passive
speakers or other low impedance drains as this may damage the
receiver! The receiver audio output cannot drive passive speakers
or headphones directly. An external amplifier is required.
L R
AUDIO
LINE IN
Audio Drain
(Amplifier)
Receiver
DC 9 V
300 mA
Power outlet
AC adapter
DC 9V
L R

User and Installation Guide
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Step 4 Operating the transmitter and receiver
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.
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.
Once the receiver is powered up and a valid audio signal is detected, audio
will be output at the receiver line out. When no valid audio signal is received,
the receiver audio output will be muted and the receiver will go into standby
mode.
If the transmitter or receiver are not used for an extended period of time,
remove the AC adapters from the power outlet.
5.8 GHz Digital Audio Transmitter5.8 GHz Digital Audio Transmitter
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TRANSMITTRANSMIT
Transmit light

User and Installation Guide
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Problems and Solutions Table
For more information, including a detailed troubleshooting guide,
visit the Amphony web site at: www.amphony.com
What Is
Happening
Possible Why What To Do
Transmit light of
transmitter does
not light when DC
power is applied
Faulty AC adapter or
faulty power outlet
Check the power outlet and the
AC adapter, if possible, check for
the correct voltage of the
adapter.
No audio present at
audio input
Check the audio connection to
the transmitter and ensure that
there is audio present.
Transmit light
goes out after 5
seconds and does
not light again Transmitter hung up Disconnect and then reconnect
DC power.
Receiver hung up Disconnect and then reconnect
DC power.
No audio at
receiver
Strong interference In some cases, there may be
strong interference preventing
proper transmission of the audio
signal, such as microwave
ovens, directional data or video
transmission devices etc. Try to
either eliminate the interference,
relocate the transmitter, or use
RangeBooster transmitters to
improve reception.
Unstable power
supply
Check that the power outlet
delivers a stable voltage. Try a
different power outlet or use a
surge protector.
Audio at receiver
drops out
intermittently
Strong interference See under “No audio at receiver“.
Too many obstacles
between transmitter
and receiver
Try to relocate the transmitter, or
use RangeBooster transmitters
to improve reception.
Low operating
range
Strong interference See under “No audio at receiver“.
Transmitter audio
level too high
Try to lower the output level of
the audio source, use an
attenuator, or use another audio
output.
Audio is distorted
Receiver audio level
too high
Lower the receiver output level
by using an attenuator, or use
another audio input.

User and Installation Guide
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Copyright (C) 2005 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.
Printed in China.
Technical Specifications
Audio transmission method: Digital
Transmitter frequency: 5.8 GHz
Signal-to-Noise ratio (A-weighted): typ. 93 dB
Dynamic range: typ. 93 dB
Frequency response: 1 Hz - 22 kHz
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
Max. Transmitter output power: 1 mW
Transmitter operating range (without RangeBooster modules):
max. 200 ft. line of sight, max. 50 ft. through walls and ceilings
Max. transmitter input voltage level: 2 Vrms
Max. receiver output voltage level: 1 Vrms
Receiver noise shaping filter for maximum signal-to-noise ratio

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 Transmitter / Receiver 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 seperately.
WHAT YOUR WARRANTY DOES NOT COVER
This warranty does not cover consumer instruction, physical setup or adjustment of any consumer
electronic equipment, 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 RECEIVER HAVE BEEN OPENED BY AN UNAUTHORIZED PERSON.
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 or microwave ovens, which may hamper proper signal reception.