Schiit AC adapter broken?

[DriedSponge]

Hello!

So a few days ago, I received my Schiit Modi and my Schitt Magni Heresey in the mail, and for the first few days they were working and sounding amazing. This morning however, I wake up to find my schiit AC adapter (the one that came with the magni) buzzing. I'm not sure why, I never did anything to break it other than plug it in. I'm more concerned about whether it broke the amp or not, I haven't turned on the amp yet this morning. Here's a video of the buzzing.

I'm wondering if I should contact schiit, and have them send me a new one, or find another power supply on the market that's a better alternative.

Thanks in advance.

edit:
So I just tested it now. The AC adapter does still power my amp but the noise from it is incredibly obnoxious and annoying.

[An0maly_76]

I would definitely contact the manufacturer about the problems you're having with this particular piece of Schitt hardware.

 

But seriously, unplug that damned thing. Sounds like a fire waiting to happen. It's possible your in-wall wiring has developed a ground loop / fault, but that would be one hell of a coincidence in timing.

[AAJoe]

Yeah you should totally contact them, take it from the Antlion Audio guy we much prefer it when someone contacts us about a problem so we can not only fix it for the customer but add it to a list of potential issues to make sure we fix or keep an eye on.

[Roswell]

1 hour ago, DriedSponge said:

So a few days ago

Return it and buy another, don't contact the manufacturer. 

 

Zero reason to waste time and money dealing with them when you're still in the return period.

[H713]

Schiit wall warts are basically a transformer in a plastic blob - that's it. 

 

This actually might not be a real serious issue - a likely cause is a loose lamination in the iron core, which is rattling around 60 times per second. This is pretty common, and on big transformers I've had limited success by dripping unthickened West System epoxy onto the suspect laminations. Obviously that's not an option on this. 

 

The other possibility is that for some reason you're saturating the core. That could be because your AC line is higher than it should be (is it? I've seen outlets in North America at 135 V before), or because the transformer has developed a short between layers on the primary, reducing the number of turns-per-volt. 

 

If you're saturating the core, the thing will get hot (very hot...) in short order, and will eventually burn up. Usually these things are designed to "fail safely" but I still don't like to chance it.

 

Either way, it's defective, so I'd contact Schiit. They'll replace it, and most companies like this will want to know if some of their hardware is having issues. They also might want to get the old one back for a failure analysis. Schiit doesn't make these wall-warts, they buy them from a company that specializes in that kind of thing. A single faulty unit isn't much cause for concern, but if it becomes a regular thing, then they may need to look into changing suppliers. In any case, this kind of information is very useful for a manufacturer to have.

[DriedSponge]

51 minutes ago, H713 said:

The other possibility is that for some reason you're saturating the core. That could be because your AC line is higher than it should be (is it? I've seen outlets in North America at 135 V before), or because the transformer has developed a short between layers on the primary, reducing the number of turns-per-volt. 

I have no idea honestly. I've tried different wall outlets and it still does the same thing.

 

51 minutes ago, H713 said:

If you're saturating the core, the thing will get hot (very hot...) in short order, and will eventually burn up. Usually these things are designed to "fail safely" but I still don't like to chance it.

It started happening overnight while I was sleeping, so I have no idea how long it was going like that. I'm glad it didn't catch fire lol.

 

52 minutes ago, H713 said:

Either way, it's defective, so I'd contact Schiit. They'll replace it, and most companies like this will want to know if some of their hardware is having issues. They also might want to get the old one back for a failure analysis. Schiit doesn't make these wall-warts, they buy them from a company that specializes in that kind of thing. A single faulty unit isn't much cause for concern, but if it becomes a regular thing, then they may need to look into changing suppliers. In any case, this kind of information is very useful for a manufacturer to have.

Yup that's what I did. It may take a few days for them to respond since it's the weekend. The good news is I can still use my modi dac so everything sounds just as good. Thanks for the insight!