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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Negligible posted by Big Dave on July 27, 2005 at 20:19:58:
.....that may be more well thought out. From www.empiricalaudio.comOur theory on why Low-Inductance power cords work
Amplifiers demand current from the power-line when the capacitors in
their power-supplies become momentarily discharged due to high-current
transients in the music signal. This discharge condition must be quickly
recharged from the power-line, through the power-supply transformer,
during the short periods that the rectifiers are conducting, or a voltage
sag will occur. Such voltage sags can cause audible distortion at the
loudspeakers. If the power-line has significant series inductance in the
path from the power panel to the amplifier (such as a standard power cord),
this can prevent the capacitor bank from recharging in time to prevent a
voltage sag from occurring at the amplifier output transistors. Since
Empirical Audio power cords are low-inductance, the voltage drop across
the power cable will be insignificant during high-current transients,
minimizing the voltage sag. This allows all of the current needed by the
amplifier output transistors and pre-drivers to be supplied when they need it,
resulting in a fast, dynamic response to transient signals. The Grand Slam
provides a uniform low-impedance path for these transient currents, no
matter what spectral content the current has. This is what makes it so
coherent.
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Follow Ups
- Here is an explanation.... - Ian Mackenzie 07/28/0506:35:13 07/28/05 (1)
- they are incorrect - jneutron 07:06:01 07/28/05 (0)
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