Danger
Many conventional subwoofers do not respond very well to infrasonic frequencies. If a test is played at high signal levels, it may damage or destroy conventional loudspeakers, even if nothing can be heard. In a ported subwoofer enclosure, the drivers may be driven past their maximum excursion, due to the lack of back pressure below certain frequencies – they may bottom out and suffer mechanical damage. In a sealed enclosure, the drivers will not move as much because of the back pressure in the box (which will greatly reduce the risk of mechanical damage), but a strong amplifier signal can still damage them by overheating the voice coil.
Read more about this topic: Bass Test
Famous quotes containing the word danger:
“John F. Kennedy was the victim of the hate that was a part of our country. It is a disease that occupies the minds of the few but brings danger to the many.”
—Lyndon Baines Johnson (1908–1973)
“The true man wants two things: danger and play. For that reason he wants woman, as the most dangerous plaything.”
—Friedrich Nietzsche (1844–1900)
“Yet some natures are too good to be spoiled by praise, and wherever the vein of thought reaches down into the profound, there is no danger from vanity. Solemn friends will warn them of the danger of the head’s being turned by the flourish of trumpets, but they can afford to smile.”
—Ralph Waldo Emerson (1803–1882)