User and Installation Guide 5.
Contents Unpacking ....................................................................................... 2 Connecting the transmitter .............................................................. 2 Connecting the amplifiers ............................................................... 4 Placing the transmitter and amplifiers ............................................. 5 Operating the transmitter ................................................................ 6 Operating the amplifiers ..............
User and Installation Guide R Unpacking: Check that this package contains: One 5.8 GHz Digital Audio transmitter - Model 1550, two 5.8 GHz Digital Audio amplifiers - Model 1550, one small and two large AC adapters (wallwarts), four short speaker cables, one RCA audio cable. Step 1 Connecting the transmitter The transmitter connects either to a standard line-out audio interface via the supplied RCA cable or to an amplified speaker output via the supplied short speaker cables.
R User and Installation Guide Using the transmitter RCA audio input: L R DC 9V L R Transmitter AC adapter DC 9 V 300 mA AUDIO LINE OUT L Power outlet R Audio Source Using the transmitter speaker audio input: L R DC 9V L R Transmitter AC adapter DC 9 V 300 mA L R SPEAKER OUT Audio Source Power outlet Page 3
R User and Installation Guide Step 2 Connecting the amplifiers Connect the DC power input of the amplifier with the supplied large 24 V AC adapter (wallwart). ATTENTION: Connect the amplifier to the AC adapter BEFORE connecting the AC adapter to the power outlet to avoid sparks due to rush-in current. Each amplifier connects to regular passive loudspeakers via the supplied speaker cable. Observe the correct polarity when connecting the speakers. Connect the left speaker to the amplifier marked “LEFT”.
R User and Installation Guide Step 3 Placing the transmitter and amplifiers For best reception, we recommend that each amplifier be placed within the line of sight from the transmitter. If possible, each amplifier should be placed right side up with its front toward the transmitter. The transmitter should be placed at an elevation such that there are no obstacles between the transmitter and amplifiers (line of sight) in an area where there will be the least amount of traffic.
R User and Installation Guide Step 4 Operating the transmitter After powering up the transmitter, the transmit light will go on for approximately five seconds while the transmitter initializes. After initialization, the transmit light will go out. Initially, set 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.
R User and Installation Guide Step 5 Operating the amplifiers As soon as a valid transmitter signal is received by the amplifiers, the amplifiers will output the amplified audio signal to the speaker outputs. The amplfier marked “LEFT” will output the left audio channel and the amplifier marked “RIGHT” will output the right channel. You can change the audio level by adjusting each amplifier volume control.
R User and Installation Guide Troubleshooting Proble m The transmit light do es not go on after DC power is applied to the transmitter The transmit light go es out after a few seco nds and does no t li ght again Possible Cause Solution Faulty AC adapter Check the power outlet and or faulty power outlet the AC adapter; if possible, check for correct voltage of the AC adapter. No audio present at Check the audio connection audio input to the transmitter and ensure that there is audio present.
R User and Installation Guide Problem Possible Cause Solution Audio drops out intermittently or crackles Strong interference In some cases, there may be strong interference preventing pro per reception of the audio signal which can be caused by 5.8 GHz cordless telephones or 5.8 GHz wireless n etworks. Either el iminate the interference, lo cate the base unit of the cordless phone in another roo m, set the wireless ne twork to use the 5.1 GHz frequency band rather than 5.
User and Installation Guide Technical Specifications Transmitter: Audio transmission method: Digital Transmitter frequency: 5.8 GHz Error correction: 1/2 rate FEC Audio sampling method: 128 times oversampling Transmitted data rate: > 3 Mbps Transmitter operating range: max. 200 ft. line of sight, max. 50 ft. through walls and ceilings Amplifier: Output power: 50 W (30 Wrms) Frequency response: 2 Hz … 23 kHz Signal-to-noise ratio: 91 dB (Transmitter / Amplifier, A-weighted) Total harmonic distortion: typ.
R User and Installation Guide IMPORTANT SAFETY INFORMATION ATTENTION! READ THESE SAFETY INSTRUCTIONS CAREFULLY AND HEED ALL WARNINGS IN THIS MANUAL. POWER SOURCE To product malfunction, and to protect against electric shock, fire or personal injury, please observe the following: • This product has been designed to work with 120-volt AC current using the supplied AC adapters.
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”) warrant this Wireless Transmitter / Amplifier Set against defects in materials or workmanship as follows.
