Thoughts on using a smart plug on intergrated amp.


I listen to music mostly at night before bed. My intergrated amp doesn't have a signal sense and doesn't turn off after music stops playing so when I wake up in the middle of the night I shut it off. What are your thoughts of using a smart plug on the amp so I can set a sleep timer? What effect if any will it have on the audio? Will it cause any issues to the amp by turning power on/off this way?

rbull11

Showing 8 responses by jeffbij

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

 

 

 

@rbull11 - I just got back to reading this post. According to the brochure the Micromega M-100 has a 5v to 12v Trigger In connection that will turn the integrated on and off.  So, to me the easiest solution is basically what I proposed earlier:

  1. Start with any Alexa compatible smart plug and plug it into the wall.  You can program it to turn on or off using vocal commands and/or by running a Alexa routine to turn it off at a certain time or by running it as a timer.
  2. Get any 5 to 12V wall wart power supply.  It will need to have a 3.5mm mono plug on one end. There are multiple ones available on Amazon for <$15 USD.
  3. Plug the 3.5mm end into the Trigger In connection on the integrated.

You can leave the AC power for the Micromega plugged into either the wall/power conditioner/power strip, etc. as it is now.

And since the smart plug on/off control is not in the AC/signal path of the integrated amp, there should be little to no degration in the sound quality.  And with the integrated designed to be turned on and off using the trigger, you don't have to worry about @jsalererno277's valid concerns about bypassing the checks/softstart routines or AC current draw through the smart plug.

My 2 cents...

- Jeff

 

@rbull11 - Which one did you get?  Can you post a link.  Since it was my idea, I'll take a look and see if I can find something better.  (I have a few ideas.)

-Jeff

@rbull11 

I would have thought that would have worked unless it was running too high of an initial voltage.  500 mA should be more than enough to work.  It might require a "regulated" power supply that will keep the voltage between 5V and 12V regardless of a load being present.

That said, using the WiiM Pro as a trigger is a logical next step. 

I'm running a variation of this idea to voice control both my bedroom and office systems by triggering the power conditioner(s) on and off.

Let us know how the WiiM works out.

- Jeff

@rbull11  -   Well at least one mystery is solved.  Makes you wonder how many people went nuts trying to get the trigger (especially the trigger out) to work "due to a manufacturing issue".  It makes you wonder sometimes...

Let me know how the WiiM trigger works out.

- Jeff

It should.  Make sure it is listed as a "regulated" power supply.  It might cost a little more, but it will keep the voltage constant regardless of the load.

For now you could use the WiiM Pro connected to the smart plug as the trigger controller, but it might add some noise to it.

Let us know how it works out.

- Jeff

@rbull11 

Excellent.  Glad it is working so easily with the WiiM Pro.

Let's declare Victory and take a nap!  laugh

- Jeff