SP4790 Wireless 900MHz Speaker
User’s Manual Please read before using the equipment INTRODUCTION This 900 MHz stereo wireless speaker system uses latest wireless technology that enables you to enjoy music and TV sound anywhere inside or outside your home. You can simply connect the system to any audio source such as Radio, TV, VCR, Hi-Fi and iPod/CD/MP3/VCD/DVD player.
2 x AC/DC 9V 1.2A Power Adaptor for Speakers 1 x 1.5M Long Audio Cable 1 x Short "Y-Cord" RCA Adaptor Cable.
COMPONENT IDENTIFICATION TRANSMITTER SPEAKER RECEIVERS 1. 2. 3. 4. 5. 6. 7. 8.
9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. Power On/Off Tune Volume Down Battery Compartment Battery Door Door Lock DC In For Speaker Left/Mono/Right Selection Power On/Off Volume Up Tune Volume Down Mute Lanyard Ring REMOTE CONTROL INSTALLATION TRANSMITTER 1. Plug the supplied 8V AC/DC power adaptor in the DC jack located on the rear of the transmitter. 2. Connect the supplied 8V AC/DC power adaptor to an electrical wall outlet. The Power LED then glows. 3.
Having finished the above simple wiring, Signal LED glows when the transmitter detects audio input signal played from the source. SPEAKER RECEIVERS 1. Remove the door of the battery compartment. 2. Insert 6 pieces of ‘AA’ size ALKALINE batteries (not included) into the battery compartment with correct polarity under the speakers, then replace the door of battery compartment, or connect the provided AC/DC 9V Adaptor to the DC input jack under the speakers, then plug it to the wall AC outlet.
REMOTE CONTROL 1. Remove the door of the battery compartment. 2. Insert 2 x AAA 1.5V batteries (not included) into the compartment.
OPERATION 1. Turn on the audio source to which the transmitter is connected with. The Signal LED on transmitter will light up. 2. Select a channel of the transmitter for best performance in your location. 3. Select the L/M/R (Left/Mono/Right) selector under the speakers, one to L (Left) and the other to R (Right) for the best stereo reception. In case the audio device only provides Mono audio signal, select to M (Mono) for the best mono reception. 4.
NOTE : You should now be able to place the speakers freely from room to room without disruption. If disruption should occur (signal breaks up), press the “TUNE” button under the speakers to maximize best reception. If you hear interference from other components, switch the channel control of transmitter, and then move the speakers to other free location. You can re-adjust the tuning control by moving it among channels of the transmitter, then pressing “TUNE” button of the speakers for best reception.
TECHNICAL SPECIFICATIONS Transmission Mode : UHF stereo Carrier Frequency : 900 MHz Operation Voltage : Transmitter, AC/DC 8V 200mA Power Adaptor Speaker, AC/DC 9V 1.2A Power Adaptor, or 6 X ‘AA’ size Alkaline Batteries (not included) Remote Control, 2 x AAA battery (not included) Frequency Response : 40Hz – 12KHz Distortion : 1.5% S/N Ratio : 65dB Channel Separation : 30dB Operation Distance : Up to 50 meters (open area) Output Power : 2 x 4W (RMS) WARNING: 1.
FCC information to the user This device complies with part 15 of the FCC Rules. Operation is subject 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 FCC STATEMENT: undesired operation.
