 
    Case size: 
Primary:W140*D120*H200mm,
Vice:93*93*132mm; 
Control:volume, low tonge, switch;
speaker unit:4"5W*1*3W*2;
input sensitivity:≥65db. 
S/N:410mV. 
Distortion:0.6%1W 1KHz. 
Frequency response:70Hz-40KHz. 
output power:5W*1+3W*2
IC:2025*1+2822*1.