Add: 2F, Building A1, No. 276, E. Baoshi Rd., Baoan District, Shenzhen
Multi - function flashlight housing
Aluminum, Brass, Bronze, Copper, Hardened Metals, Precious Metals, Stainless Steel, Steel Alloys, Other
polishing, anodizing, sanding, plating
turning machine, welding, milling, CNC machining, strengthen, stamping machine
as customers' requirement
Coordinate measuring machine, projector, roughness tester, hardness tester, concentricity tester， height tester， salt spray machines, torsion machines
as per customer’s 2D/3D drawings
+/-0.01mm or +/- 0.004
Industrial packing: Cartons for outer packing and foam for inside protection with wooden pallets or as customers' requirement
PayPal, T/T, western union, etc
7 to 10 days after deposit received
UPS, DHL, TNT, Ocean Shipping ,etc.
A device that converts an audio signal into sound. Popular means that the speaker box or subwoofer box body comes with power amplifier, the audio signal amplification after the speaker itself by the sound, so that the sound becomes larger.
Speaker is the terminal of the entire sound system, its role is to convert the audio power into the corresponding sound energy, and it radiation to the space. It is an extremely important part of the sound system, responsible for the electrical signal into an acoustic signal for the human ear to listen directly to the task
Speaker is an important part of the entire sound system, the value of the whole system about half of the time to be properly treated.
① avoid placing the sun in direct exposure to the place, do not close to the thermal radiation equipment, such as stoves, heating pipes, etc., do not put in a wet place.
② Before connecting the amplifier to the amplifier, the amplifier should be switched off to avoid damaging the speaker.
③ with the amplifier feeder connection should be safe, can not be pulled when pulled, positive and negative polarity can not be wrong. The feeder to connect the speaker should be thick enough, should not be too long, so as to avoid loss and damage to the damping. To the frequency response to the maximum value of 0.5dB (0.75mm2 wire maximum length of 9cm, 1.5mm2 wire maximum length of 14m, 2.0mm2 wire maximum length of 21m.
④ It should be noted that the impedance of the loudspeaker is suitable for the recommended value of the amplifier
⑤ shall not exceed the rated power use. Otherwise the sound quality will deteriorate, or even damage the speaker.
⑥ shell should be soft, dry cotton wipe, do not paint furniture wax or benzene, alcohol substances.
⑦ the surface of the dust can only use the soft brush to remove, can not use a vacuum cleaner suction.
⑧ speakers to be placed on a solid, strong floor, so as not to bass attenuation. Do not place the speakers too close to the wall.
⑨ Do not place the speakers too close to the turntable, so as not to cause sound feedback caused by howling.
⑩ If you have a medium and high tone level adjustment, you can adjust to listen to the requirements to make the sound satisfaction