2.1 Color Multimedia Speaker

2.1 speaker  box of sound box has two types

wood and plastic.

 The woodiness sound box of low price is to use medium close board to serve as box body material to pledge mostly, and high price uses true pure board to serve as box body material mostly, want to avoid box body resonance and sealing sex, assure the ply of box body board, close degree is the key factor that affects tone between board.

Choose woodiness speaker body, want to see the outside of sound box first stick layer, whether have apparent blister, scratch to wait for a phenomenon, juncture is neat. 

The wooden box shown in Figure 2 has good workmanship and smooth lines. 

To carefully identify the material quality of the box body, if you can not see from the joint, you can use your hand to knock on the wall of the box cavity, if the plate is thicker, the density is higher, the sound should be low and no obvious empty ring.
Choose plastic speaker body, be about to see plastic products coarse, for instance the tube wall of inverted phase tube is thick, the surface is smooth. 

Want to uncover dustproof cover next, see the making technology of loudhailer. 

Include here: loudspeaker in the middle of the convex voice coil cover around the production process and fixed the screw loudspeaker is in place.
Finally, turn the volume button to 3/4 to check the sealing of the box. 

Touch in sound box everywhere with the hand, if feel box body hind (outside divide inverted phase hole) have wind to blow, explain box body sealing sex is bad, can produce distortion.

Power supply: USB  DC5V 1200mah              
Output power:5W+3W*2    (RMS 11W)                         

 Driver units size :3" +2"*2PCS                                                                        
USB/TF Card Slot,3.5mm aux in,FM  Support remote control
Subwoofer size(W*D*H)116.5*96*128mm                            

Satellite size(W*D*H)60*62*73mm*2