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User and Installation Guide

R

User and Installation Guide

R

Step 2

Placing the transmitter

Ideally, the transmitter should be placed at an elevation such that there

are no obstacles between the transmitter and wireless receivers or

amplifiers (line of sight) in an area where there will be the least amount

of traffic. We suggest that you place the transmitter on top of your audio

source.

Step 3

Operating the transmitter

The green transmit light of the transmitter will be on when audio is

transmitted.

If you are using the speaker outputs, adjust the audio level of your audio

source to the maximum level where no clipping / distortion occurs at the

wireless receivers.

If the audio level supplied to the transmitter is too high, then distortion

will occur. If the audio level is too low, the dynamic range of the

transmission will not be used and the audio level at the receiver may be

too low.

If you are using a line-level audio output and the audio level is too low,

try instead using an audio output with audio volume regulator such as a

headphone output. The transmitter can connect to a headphone output

by using a phone jack-to-phone jack cable.

If audio reception is poor, try raising the transmitter and changing the

transmitter location until reception is acceptable.

If no audio signal is present, the transmitter will go into standby mode

after approximately two minutes. The transmitter will wake up as soon as

an audio signal is present.

Technical Specifications:

Transmitter frequency:

5.8 GHz

Audio transmission:

Digital

Number of wireless audio channels:

4

Automatic power-down feature

Operating range:
-

max. 200 ft line of sight

- max. 50 ft through walls and obstacles

Compatible wireless receivers:

- Model 400 wireless audio receiver
- Model 480 wireless audio amplifier

Audio inputs:

- 4 x speaker-level input
- 2 x stereo line-level input

Signal-to-noise ratio:

typ. 96 dB (A-weighted)

Frequency response:

2 Hz - 20 kHz

Audio latency:

< 1 ms

Total harmonic distortion:

-90 dB (0.003%)

Transmitted data rate:

6 Mbps

Error correction:

1/2 rate FEC

Channel separation:

95 dB

Audio input level:

max. 3 Vrms

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Summary of Contents for 400

Page 1: ...R User and Installation Guide Multi Channel Audio Transmitter 5 8 GHz Model 400 0 5 25 75 95 100 ...

Page 2: ...ILITY 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...

Page 3: ...nect both the line level audio input and amplified speaker audio input of the same zone This may damage your audio source User and Installation Guide R User and Installation Guide R 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 its affiliated companies we our us warr...

Page 4: ...ence received including interference that may cause undesired operation FCC ID PMJT1500 Caution Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Transmitter audio inputs CLEANING Unplug the product before cleaning When the system gets dirty wipe it with a clean soft cloth If necessary wipe it with a...

Page 5: ...hazardous and should be replaced immediately by a qualified service technician LOCATION Do not place this product in direct sunlight or near heat sources Keep this product away from strong magnetic objects CARE Do not place any object containing water or other liquids on this product Do not remove the cabinet Touching parts inside the cabinet could result in electric shock and damage to the produc...

Page 6: ...is too low try instead using an audio output with audio volume regulator such as a headphone output The transmitter can connect to a headphone output by using a phone jack to phone jack cable If audio reception is poor try raising the transmitter and changing the transmitter location until reception is acceptable If no audio signal is present the transmitter will go into standby mode after approxi...

Page 7: ...an adjustable audio output Ampl ifier volume control set too low Adjust the ampli fier volume control to achieve desired audio level Audio drops out intermittently or crackles Strong interference See under Strong Interference on next page Unstable power supply power surges Ensure that the power outlet delivers a stable voltage Very strong surges or voltage fluctuations may cause audio dr opouts Tr...

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