digital amps

Archived from groups: rec.audio.high-end (More info?)

MAUOMBO <mauombo@hotmail.com> wrote:
> is there any need for these for normal music? Or are they only needed for
> surround sound (mainly for TV, I assume)

From what you write, I'm not sure what you mean by a 'digital amp'.
Please elaborate. Do you mean, an amp (receiver) that takes a
digital input? If so, no, they are not needed for 'normal' (two-channel)
music. They aren't necessarily needed for surround sound, either,
but it's normal today to send both kinds of material over a single
digital connection to a receiver with a digital input, for convenience's
sake. Then all the decoding is done in the receiver. If you use analog
connections, the decoding has to be done in your player.

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Archived from groups: rec.audio.high-end (More info?)

In article <mVGIc.63726$MB3.13399@attbi_s04>,
Steven Sullivan <ssully@panix.com> wrote:
>MAUOMBO <mauombo@hotmail.com> wrote:
>From what you write, I'm not sure what you mean by a 'digital amp'.
>Please elaborate.

Digital amplifier as in using PWM in place of more conventional
amplifier topologies. High efficiency (90%) allows them to be
built with smaller heat sinks than traditional designs.

A few high end makers (Example: Bel Canto) are building reputable
examples arround the Tripath chips.

Inputs can be direct digital (S/PDIF) or an ADC.

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