20W audio sweep generator

Audio Sweep GeneratorFeatures:Base on novel RC oscillated technique, tiny sine distortion, especially suitable for speaker and MIC testing.Frequency display, output amplitude digital display, readout more accurately, less error.Beginning and starting point can be arbitrated adjusted.Large power supply, max. to 150W.Specifications:1. Frequency Range: 20Hz to 20 KHz2. Frequency display error: 1×10-4±1digit3.Sinusoidal output amplitude:LW1212BL:0-12.8Vrms 8Ω loadLW1212DL:0-18Vrms 8Ω loadLW12121E:0-22Vrms 8Ω load4. Output voltmeter instructions error: ±10%(full scale) Output voltage display error: ±10%±2 digits5. Sine wave frequency response: ±0.4dB (1 KHz to as a benchmark, Manual working station)6.Sine wave distortion:≤0.5%7. Output power:LW1212BL: 20W frequency: ≤20KHz 8Ω load 12.8VrmsLW1212DL: 40W 8Ω loadLW1212E: 60W 8Ω load8. Sweep frequency mode: Logarithms9. Sweep width: ≥1:100010. The time of Sweep frequency :1S-20S11.voltage-controlled input voltage range:2V -1V deviation ±20%12.Power supply: AC220V/110V±10%; 50/60Hz13.Working conditions:Temperature: 0 0C - 40 0CHumidity: ≤ RH90%Atmospheric pressure: 86KPa – 104KPa14.Dimensions: 400*360*140mm