SP-WM220

▪ User-friendly design, self-contained horizontal and vertical suspension holes for easy installation;

▪ High-quality engineering plastic injection molding, durable, no deformation, no fading, black and white optional; 

▪ Built-in 5 inch high fidelity bass unit and 1.5 inch treble unit, beautiful tone and high voice reproduction;

▪ Built-in D class 2 × 20W power amplifier circuit, fine sound quality, powerful;

▪ High fidelity stereo design, professional CD level sound;

▪ Flexible connection port and quick installation method, easy to use;

▪ AC110V~AC220V wide voltage supply mode;

▪ 1 stereo line input, 1 microphone input, 1 100V constant voltage signal input;

▪ Each input channel has a sealed potentiometer volume adjustment knob;

▪ Ideal for school multimedia classrooms, conference rooms, etc.;

▪ Output Power: 20W×2@8Ω;

▪ Input sensitivity: 0.5V;

▪ Output Frequency response: 60Hz-18KHz/1W, ±0.5dB;

▪ Harmonic distortion: 20Hz-20KHz/1W, 0.05%;

▪ Damping coefficient: >200@8Ω/400Hz;

▪ Conversion rate: 30V/US;

▪ Channel separation: >75dB(without weighting);

▪ Signal to noise ratio: >95dB(without weighting);

▪ Amplifier type: Class D digital amplifier;

▪ Indication type: Power supply, channel signal;

▪ Protection type: Over temperature protection, overload protection, mute and switch;

▪ Input type: AV lotus seat, 6.5 socket, plug-in terminal;

▪ Application for Power supply:AC110V-240V/50Hz-60Hz;

▪ Size: 170×185×250mm;

▪ Weight 4.7Kg (1 pair);