Ever had your Wiim turn on & then off with a huge BANG?

[guy48065]

I'm not a fan of the way a Wiim will turn on by itself, check for updates or whatever, then go back to sleep.
Just now mine did that 2X in quick succession. Problem is my 250wpc amp is connected to turn on remotely and since it didn't have time for the power supplies to bleed off from the first power cycle, the 2nd time produced a LOUD crack like a gunshot.

When I composed myself I turned on the system to make sure my tweeters weren't shot.
Everything is ok but I want to know if i can disable this behavior?
I don't mind the Wiim doing it's thing but it's stupid that this also activates the remote amp.

 

[Wiimer]

I'm not a fan of the way a Wiim will turn on by itself, check for updates or whatever, then go back to sleep.
Just now mine did that 2X in quick succession. Problem is my 250wpc amp is connected to turn on remotely and since it didn't have time for the power supplies to bleed off from the first power cycle, the 2nd time produced a LOUD crack like a gunshot.

When I composed myself I turned on the system to make sure my tweeters weren't shot.
Everything is ok but I want to know if i can disable this behavior?
I don't mind the Wiim doing it's thing but it's stupid that this also activates the remote amp.

I have never heard a gunshot. Can you reproduce the issue by continuously rebooting the Ultra with the amplifier volume turned down?

 

[guy48065]

It never occurred to me to try.
Honestly I would expect a deep "whump" from dc offset (Adcom amp is completely dc-coupled). The gunshot "snap" I heard was more like turning a preamp on or off with the amp still powered. Which is pretty much what is happening.

I've done that in years past and blown speaker fuses as a result of my absent-minded mistake. No such fuses in my current system (Wiim Ultra, Geek Pulse Infinity dac, Adcom 5800, Thiel CS7). No muting relays either. I'm concerned my sources are full digital with no traditional volume control or muting, feeding into a high-current dc-coupled amp. No safeties at all other than supply rail fuses in the amp. The potential of some digital glitch sending a full 2V signal to the amp is always lurking... And now I've experienced it.