Amp — Leave on or turn off

For my Portal Panache Integrated (designed by Nelson Pass), they recommended that for best sonics it be left on 24/7 (there was no standby switch)...for my high power Pass Class A mono blocks, Pass says there is no short or long term harm in leaving them on 24/7, simply my decision based on listening habits, sonics, electric usage...sure seems manufacturers of seemingly similar products have various recommendations...

A class D amp takes 24 to 48 hours to properly charge the caps and settle in since it is 95% efficient. You don’t want to EVER TURN ONE OFF SO HELP YOU GOD unless you are plugging in things into it

Electronics degrade by cycling on/off , true but to what extent ?  leaving on 24/7/365 equals 8,760 hours per year , since most power/filter capacitors are rated for 10,000 hours which would you think causes the most degrading ?  How often do you plan on replacing the electrolytic caps ? how long do you plan keeping your amp ? 

Newer amps have standby modes , older ones are on and off only .  The new Krell 800 watt mono block uses 1 watt in standby and 260 watts on with no music so leaving it in standby is like turning it off , you wouldn't leave it on using 260 watts would you .  My 250 watt amp uses 84 watts at idle/on , there isn't a standby mode so leaving it on is not very practical .

If leaving your amp sounds better to you then do so but think about the true cost depending on the amp you own .

I use my HT system Friday/Saturday/Sunday. Mon-Thurs the wife and I are in our living room. I used to leave everything on. But then figured if my system was going to be completely unused for 4 days, wouldn't it be better to power everything down? So only recently have I started doing that. And I mean I power everything down, DAC's, Processor, Amp, Streamer, and all 4 of my subs. I actually flip switches powering everything off fully.

Then on Thursday night before bed I power everything up. I don't play the system. Then fist thing Friday AM before work I run the streamer at low volume and let it play all day so it's nice and warmed up by the time I get home.

Then everything stays on until Sunday night when we go to bed all switches off.

I'm sticking with this routine😁

That amp uses 20 watts on idle. That's less than a low wattage lamp bulb. If it sounds better leave it on!

AC Input

• Auto-ranging AC Input
• 100 to 120 VAC +/- 10%, 8 Amps, 50 - 60 Hz
• 220 to 240 VAC +/- 10%, 8 Amps, 50 - 60 Hz
• Idle Power Consumption = 20 W
• Standby Power Consumption < 0.5 W