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

millercarbon Details Discussions Posts This discussion 12,531 posts 06-01-2021 at 12:36am Copy Comment URL Report Comment Edit Delete Power. Seriously. Helps to think things through. What is power? Current? Voltage? Here I'll give you a hint: Watt is power? That's not a typo.
Post removed Jun 01, 2021
millercarbon Details Discussions Posts This discussion 12,531 posts 06-01-2021 at 01:29am Copy Comment URL Report Comment Edit Delete They're not paying me enough. You could mention that.....
imhififan Details Discussions Posts This discussion Message User 2,231 posts 06-01-2021 at 02:13am Copy Comment URL Report Comment Edit Delete The gain switch is a nice feature on the power amp, 23dB of gain can give most active preamp better range of volume control, but passive preamp might need 29dB gain to drive the amp to full power. Why not call Bryston to get the answer?
Post removed Jun 01, 2021