I know I can plug in and unplug to turn on and off, but I was hoping that there is a better way. Is there some kind of power strip with a heavy duty switch that would allow for powering on and off amplifiers? A switch heavy duty enough to power of 2 or 3 amplifiers at once without wearing out in short order? Amplifier in question: Hafler DH200 with switch bypassed. If I could hook 3 DH200 amps to a single strip and power on and off all 3 at once and do so reliably, cool. What kind of strip would you recommend?