Car stereo

Speaker layout is very important criteria. . Each instrument sounds , you can achieve the best results in the replay . This is often called a professional Hi - Fi ( High Definition High Definition ) . Ideal Hi - Fi effect , the key is to make the sound source signals of the same synchronization and frequency bands magnifications . Home audio is Bluetooth Speaker not difficult. Since the home audio -frequency units at the same high school all the fixed frame and the same music signal amplifier , consistent with the reduction ratio is relatively easy to achieve a good balance of quality . However , due to different car audio installation location , subwoofer unit usually only installed in the luggage compartment , the bass is generally only be installed in front of the car unit , the tweeter is usually installed in the vicinity of the A-pillar . This effect may be just to hear the treble and bass from behind the same month , the Alto section is relatively weak. In Computer Speaker addition , for different modules and power amplifier requirements , in general, can take a variety of car audio amplifiers to drive speakers ( many designs require amplified by the low-frequency part of multiple amplifiers ) , so tonal balance is difficult to achieve a satisfactory level . Address some of these challenges factors involved , the number and installation arrangement of the speakers is the key .

Electric loudspeaker

The electric speaker diaphragm vibrates force is magnetic force of the current carrying conductor , we call this effect the electric force effect transducer , the size specified by the following formula :
F = B L i
Where : B is the magnetic flux density in the gap (intensity ) , in units of N / (Am) < N / ( ampere meters ) > also known as Tesla (T)
L is the length of the coil wire , the unit: m
i is the current flowing through the coil unit: Ampere
F is the magnetic force on the Computer Speaker voice coil units : Newton
However , the force in the movement of the voice coil is energized , while the magnetic gap due to the magnetic field will cut line so as to generate an induced electromotive force in the voice coil , we call this effect electric transducer electrical effects , the size of the Wooden Computer Speaker induced electromotive force :
е = Вiν
Where : v is the voice coil vibration velocity in units of : m / s
е electromotive force induced in the coil , the unit is : V
Electrodynamic loudspeaker force effect and electrical effects are simultaneously present, accompanied by the line .