Thoughts on using a smart plug on intergrated amp.

Here is one thing you can try. 

(This is assuming two things.  1) that the integrated amp has a normal power switch and not a soft start switch and 2) does not have a 12v trigger in/on)

• Start with a good power strip or power conditioner that has a 12v on/off trigger built in.
• Plug the integrated amp into the strip/conditioner above
• Plug a 12v wall wart/power supply into the smart plug and the leads to the 12v trigger in.  It can be a cheap one as you only need voltage to engage the trigger.
• Plug the smart plug into the wall.
• Then you can use the smart plug to trigger the integrated on/off 

You can also do this with with some power conditioners that allow some of the outlets to be controlled independly and plug the smart plug into one outlet on the conditioner, which is always on, and run a cord from there to the trigger for another outlet.  I have used an older Monster Power home theater conditioner this way for non-critical equipment to turn equipment on and off with voice commands.  You can find the Monster Power's on eBay for >$100.

-Jeff

Is your system a high end audio system or a good sounding audio system. If the later... using a switched plug is probably OK. But I feel very comfortable in going out on a limb and saying it is definitely going to compromise the sound quality of a high end audio system. 

Provided it is not a tube amp, there probably isn't any downside to leaving it on unless it is a monster Class A amp. 

I think they are small and cheap and if you can’t hear it you can’t hear it.

This is the brand I use. You can even schedule it to turn itself off at specific times or events like sunrise/sunset.

I don't have one on my listening gear per se, but I have about 14 switches and smart plugs around the house and I definitely can't hear them degrade the sound.  If anything, compared to the old school dimmer switches I think they are a lot quieter physically and electrically.

typo in my post....

... Monster Power's on eBay for <$100 .

I don’t know what amp/system you have but if your music stops playing and your amp goes into standby mode, what’s to fix? worry about it the next day. Some leave their amps on 24/7.  OTOH, if you have a class A amp, it won't go into any standby mode.

if you still want to try it, the question will be does it change the sound? i certainly would’t do it as i am a bit of a fanatic about good power. but if it has good contacts and conductors, it may not make a difference. If your amp has a power supply that does’t need bursts of high current to handle bass and dynamics, it may be fine.

The problem is, it won’t be easy to do A/B testing.

Jerry