What’s the relationship between gain (dB) and power (watts)?

Is there one? My new used 300+ epic Bryston amp has a gain switch on the back toggling between 23 and 29 dB of gain.

redwoodaudio05-30-2021 3:48am

danvignau Details Discussions Posts This discussion Message User 935 posts 06-04-2021 at 02:08pm Copy Comment URL Report Comment Edit Delete That Bryston gain switch would be to match the volume of two disparate amps on the same preamp.