Supply of active wall speakers

Factory Direct Supply AP-9030 active wall speakers, Shenzhen, Hong Mei sound R & D production, fair prices, after-sale guarantee, free maintenance for two years, five-year warranty and lifetime maintenance. Wall Speakers The speakers are powered an electric acoustic conversion part, it sounds converting electrical signals into sound. From the historical development, there had been a variety of speakers, such as: electric-powered loudspeaker, electromagnetic speaker (ie reed speaker), crystal speaker, electrostatic speaker. Electrodynamic speaker sound principle is the alternating current signal coil in a magnetic field campaign to vibration and voice coil connected to the diaphragm, which involves even cone vibration, and through the medium of air, the sound waves sent. Electromagnetic speaker sound is by alternating current through the coil generates an alternating magnetic field signals, attract repulsion disk, causing the diaphragm, the cone vibration, sound propagation through the air medium. Crystal speaker sound is crystal plate by electric telescopic effect, causing the diaphragm vibration, sound and then spread through the air medium. Electrostatic speaker sound effect by electrostatic repulsion is the accumulation of attraction, so that the diaphragm vibration, sound propagation through the air medium. In these speakers, in addition to electric-powered loudspeaker, the other because of the radiant sound speaker frequency range is narrow, small acoustic radiation power is eliminated. The remaining dynamic speaker, because of its radiation frequency range up to the entire audio range, and can do a lot of sound power (produced by sub-band high-powered speakers, using a combination of vocalization, the formation of the whole band burst), thereby obtaining the widely used. Features: Active wall speaker, powerful, multi-port input, unbalanced input resolve long-distance transmission signal interference, left and right channel stereo conversion. Powerful, cost-effective, multimedia room ideal for hotels, conference halls and the like. AP-9030 Active wall speaker technical parameters: 1, Input Sensitivity: 350MV 2, the output power of 10W, 20W, 30W, 40W 3, distortion: 0.01% 4 SNR 90DB 5, Frequency Response: 20HZ-20KHZ 6, no signal automatic power-off, a signal is automatically turned on 7, the same shape; proportional to the height of power and indicates the type of power supply, channel signal power, the type of channel signal protection over temperature protection, overload protection, over-temperature protection mute switch, overload protection, switch Machine mute Treble ± 10dB ± 10 dB bass adjustment ± 10 dB ± 10dB input type European balance, lotus seat, stereo jack 3.5 European balance, lotus seat, 3.5 stereo jack Power supply 220V-240V / 50HZ- 60HZ220V-240V / 50HZ-60HZ Wall Speaker: also known as Mount stereo, because the installation is hung on the wall and its name, it is also known as: Wall or wall speaker stereo; public broadcasting system, an important member of a conference system , commonly used in multimedia conference room, multimedia classroom, school hallways, aisles, supermarkets, shopping malls, factory floor, office buildings, offices and so on; as a public broadcasting or conferencing systems audio signal amplification reduction equipment. Wall Speaker in different ways according to the input signal can be divided into: fixed resistance type wall speaker, wall speaker constant pressure type and an active type wall speaker. If Active wall speaker demand or peripheral products, welcome to inquire and look forward to your calls.