power source

I have a Fosi Audio BT20A-S that I need to be able to power on and off at the wall connection. But there is a nasty pop (probably not good for my tweeters) upon power up and power down. I am well aware I can leave it on all of the time or use the front switch, but those are not viable options...

Hello everyone, I need some advice in choosing a new UPS for my stereo system. Currently, I have the following: 1. Integrated amp, Power rating: 2 x 120 W RMS @ 4Ohm 2. DAC with external switching PSU, 100 - 240 V AC, 2 A, 24 Watts 3. Preamp (line switcher), approximately 15 watts consumption...