Category:Class-D Amplifier

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This is NOT a digital amplifier. The Class D amplifier uses very high-speed switches to send the entire voltage of the power supply, with minimal power loss, as a sequence of pulses to the output, where a filter averages the pulses before the loudspeaker terminals. The frequency, density and duty cycle of these pulses determine the average output voltage. This is designed to have an inductive/capacitive load of a standard coil loudspeaker and have an efficiency of better than 85% (e.g. 85W to speaker, 15% used in amplifier, a lot less heat than Class-A).
As the amplifier is dependent on the inductive/capative load, then the usual loading of Electrostatic loudspeakers may cause poor sounding instability. Check with your speaker manufacturer for any solutions.

In Linn amplifiers using the Class-D amplifier, the outputs are bridged, that is, both RED and BLACK speaker output terminals change voltage.
  • As a precaution, do NOT connect/disconnection anything from the Amplifier output terminals UNLESS the amplifier is in Standby/Sleep state
  • If you plan to use a Sub-woofer amplifier that uses the power amplifier output terminals, then make sure that the Sub-woofer is set up for bridged amplifiers.

Pages in category "Class-D Amplifier"

The following 4 pages are in this category, out of 4 total.