Why Would I Want a Digital Amplifier ?

Presently we mostly listen to digital audio on Hybrid systems. Digital signal sources must be fed thru Digital To Analog Converters then to linear analog amplifiers in order to be heard on a loudspeaker. Pure digital amplifiers break thru this last remaining weak link in the audio signal chain and make it possible to keep the audio in a digital state all the way thru the amplifier. Digital To Analog Converters are eliminated and there are many other sonic and financial advantages as well.

In order to have a purely digital audio system the program material needs to stay in its digital form through every stage of electronics from the storage device (like a CD) or transmission medium (like satellite signal) to the loudspeaker. This means either everything needs to be in one box like a DVD Player which includes a pure digital amplifier and feeds speakers directly or the device being used as a signal source needs to be equipped with a digital output.

You should look for digital outputs on the new equipment you buy because it wont become obsolete as quickly as a device without a digital output. This will save  you money when you don't have to replace that new piece of electronic equipment as soon.