Graham Bell invented the first telephone. It was also the first speaker
a speaker is a device for sending out sound. a woofer is a speaker designed for low bass sound a tweeter is a speaker designed for high treble sound
a loud speaker and for no sound it is a loud speaker with a cross on it
The sound quality isn't determined by the amount of power it can handle, in this case, 400 watts. What determines the sound quality of the speaker is the design of the speaker itself.
When a microphone is placed near a sound speaker, it can pick up the sound output from the speaker, causing feedback loop. The sound that comes out of the speaker is captured by the microphone, sent back through the system and played through the speaker again, resulting in a continuous loop of sound amplification, which leads to the noise you hear.
An electromagnet drives the stereo speaker to provide the sound.
A speaker is the device that converts electrical energy into sound energy. An electrical signal is sent to the speaker, which causes a diaphragm to vibrate and produce sound waves that we hear as sound.
The speaker sound will turn off and the sound will go into your earphones.
The medium for sound waves from a stereo speaker is usually air. Sound waves produced by the speaker cause air particles to vibrate, creating variations in air pressure that travel through the air as sound.
Exceeding the sound barrier refers to speed of travel, not loudness of sound. A speaker cannot "exceed the sound barrier".
Sound energy is given out by a loud speaker. This energy is produced by the vibration of the speaker cone, which creates variations in air pressure that we perceive as sound.
A speaker is like a microphone in reverse. Instead of converting sound into electrical signals like a microphone does, a speaker converts electrical signals into sound waves that can be heard.
It can work, but it will not sound good. Any deformations of the cone will "color" the sound, which will sound muddy and not clear. Eventually the speaker will die due to the voice coil dragging in the magnet because the speaker isn't moving correctly. If you have a speaker with a hole in it you should replace it.