Possible with a DAC is connected direct to power amp?
Especially DAC's that up-sample to high sample rates? Many up-sample to 384kHz and above these days, before converting to analogue?
Yes, we had this discussion elsewhere (DSD thread). However that other signal has to be of significant amplitude to get translated into audible levels in the normal range.
An audio amplifier that is open to 380kHz is a *BAD* design. It will be prone to RF interference from other sources. It should have an input filter.
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