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User and Installation
Guide

5.8 GHz DIGITAL Wireless

Audio Transmitter / Amplifier

Model 1520

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Summary of Contents for 1520

Page 1: ...R R User and Installation Guide 5 8 GHz DIGITAL Wireless Audio Transmitter Amplifier Model 1520 ...

Page 2: ...g the transmitter Connecting the amplifier Placing the transmitter and amplifier Operating the transmitter Operating the amplifier Troubleshooting Technical specifications Safety information Your warranty 2 2 5 7 9 11 12 15 16 18 ...

Page 3: ...egrade sound performance The transmitter can also be connected to other audio outputs by using an appropriate adapter Connect the supplied small AC adapter s barrel shaped plug into the DC 9V jack and then plug the transformer into a standard AC outlet We recommend the use of a surge protector to protect the transmitter from power surges Unpacking Check that this package contains One 5 8 GHz Digit...

Page 4: ...User and Installation Guide R R Page 3 L R DC 9V L R L R AUDIO LINE OUT Audio Source Transmitter DC 9 V 300 mA Power outlet AC adapter Using the transmitter RCA audio input ...

Page 5: ...L R DC 9V L R Using the transmitter speaker audio input Transmitter DC 9 V 300 mA Power outlet AC adapter L R SPEAKER OUT Audio Source User and Installation Guide R R Page 4 ...

Page 6: ...luded Observe the correct polarity when connecting the speakers It is also possible to connect both speakers to separate amplifiers by using an additional amplifier In this case connect one speaker to the left audio output of the first amplifier and the second speaker to the right audio output of the second amplifier One audio output of each amplifier will not be used in this case ATTENTION Never ...

Page 7: ...User and Installation Guide R R Page 6 Amplifier DC 24 V 1000 mA DC 24 V 1000 mA Power outlet AC adapter Speakers ...

Page 8: ...also be placed as shown in example 2 In this case no line of sight exists and the operating range is reduced You can mount the amplifier vertically by using the 2 screw openings at the bottom of the amplifier If the amplifier is mounted vertically the operating range is reduced compared to mounting the amplifier right side up The amplifier incorporates a directional antenna which prefers signals t...

Page 9: ...de R R Page 8 Example 1 Amplifier placed on top of a speaker Example 2 Amplifier mounted vertically behind a speaker Transmitter Speaker Amplifier Transmitter Speaker Amplifier line of sight indirect connection reflected signal ...

Page 10: ... the transmitter volume control to a middle setting Once audio is detected at the audio input the transmit light will go on and the transmitter will transmit the audio signal When audio is no longer detected the transmitter will go into standby mode after approximately one minute The transmit light will go out During standby mode no signal is transmitted 5 8 GHz Digital Audio Transmitter 5 8 GHz D...

Page 11: ...User and Installation Guide R R Page 10 L R DC 9V L R Transmitter volume control ...

Page 12: ... to match the audio level of your audio source as follows 1 Set the amplifier volume control to a low level to prevent clipping inside the amplifier 2 Set your audio source to output the maximum audio level that you will encounter during normal operation 3 Turn the transmitter level control knob to the position that yields maximum audio loudness to the speakers without any clipping distortion If t...

Page 13: ...r or faulty power outlet above Transmitter volume control set too low Adjust the transmitter volume control Amplifier volume control set too low Adjust the amplifier volume control No audio at amplifier Strong interference See under Strong Interference on next page Transmitter volume control set too high Adjust the transmitter volume control until clipping stops Amplifier volume control set too hi...

Page 14: ...f the audio signal which can be caused by 5 8 GHz cordless telephones or 5 8 GHz wireless networks Either eliminate the interference locate the base unit of the cordless phone in another room set the wireless network to use the 5 1 GHz frequency band rather than 5 8 GHz relocate the transmitter relocate or reorient the amplifier Audio drops out intermittently or crackles Unstable power supply Ensu...

Page 15: ...o signal too weak on previous page Strong interference See under Strong Interference on previous page Transmitter range is extremely short Too many obstacles Audio will drop out if there are too many obstacles between the transmitter and the amplifier see page 4 try relocating the amplifier or transmitter to improve reception or use a model 1550 transmitter For more information including a detaile...

Page 16: ...ling Transmitted data rate 3 Mbps Transmitter operating range max 100 ft line of sight max 30 ft through walls and ceilings Amplifier Output power 2 15 W RMS Frequency response 20 Hz 23 kHz 8 Ohms Signal to noise ratio 91 dB Transmitter Amplifier A weighted Total harmonic distortion typ 0 05 10 W Overall audio latency 1 ms Power efficiency 75 Channel separation typ 75 dB Automatic amplifier power ...

Page 17: ...t the bottom of the amplifier to prevent excessive temperatures inside the unit Do not place the amplifier in closed spaces cover it or otherwise block the vents Do not place this product in direct sunlight or near heat sources Keep this product away from strong magnetic objects VOLUME CONTROL Do not turn up the volume while listening to a portion with very low level input or no audio signal to av...

Page 18: ...s accidentally fall inside disconnect the product from the power source immediately and consult an authorized service center Please refer any service to an authorized Amphony service center Copyright C 2007 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...

Page 19: ...lacement 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 or signal transmission problems ...

Page 20: ...E TO HONORTHIS WARRANTY IF WE DETERMINE ANY OF THEABOVE EXCEPTIONS TO HAVE CAUSEDTHIS EQUIPMENT NOT TO HAVE PERFORMED PROPERLY THIS WARRANTY SHALL BE VOID IF ANY FACTORY APPLIED IDENTIFICATION MARK INCLUDING BUT NOT LIMITED TO SERIAL NUMBERSAND WARRANTY LABELS HAS BEEN ALTERED OR REMOVED THIS WARRANTY SHALL ALSO BE VOID IFTHE TRANSMITTER OR AMPLIFIER HAVE BEEN OPENED BY AN UNAUTHORIZED PERSON This...

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