05-01-2010, 12:59 AM
(05-01-2010, 12:49 AM)-mk- Kirjutas: Mis paneb kõlarite ja võimendi koostöö sujuma. üksteist nad siiski ju mõjutavad.Kõlari ja võimendi vahel kõige olulisem faktor on nn damping factor. Tsitaat:
A speaker cone tends to oscillate for several excursions after the electrical signal has ceased before coming to rest. The coil generates a voltage that produces a current and a magnetic field which opposes the spurious motion and so dampens it. The magnitude of the current, hence damping effect, depends upon the internal resistance of the amplifier output stage through which it must flow. This resistance is much lower than the rated impedance, 0.1 Ohm being typical. The damping factor is the speaker impedance divided by the amplifier source resistance. It ranges from 25 to 1000- the higher the better. Keeping loudspeaker cables as short as possible will help maintain a high damping factor, thereby improving definition.
Teine teema on see, et kui palju moonutusi kõlarisse jõudev madala otsa signaal sisaldab. Moonutused madalas otsas kipuvad tunduma rohkema bassina.