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Schiit Mjolnir headphone amplifier - Page 210

post #3136 of 3149
I posted that an hour ago. I had been listening to music for about two hours at that point with no noise issues. Just now, about an hour later, it's approaching noon and my apartment people are up and living, I'm getting a static like crackle about every 20 - 30 seconds. And that's with the volume knob turned all the way down and my CD player source turned off. I've done nothing different.

Touchy thing in my experience. And crappy AC in my building.
post #3137 of 3149

I had a similar experience, but the crackling was associated with sub-bass frequencies. I also noticed that more lights on in the house made the general amp noise higher. Based on some comments in this thread and another, I ended up picking up a Tripp Lite isolation transformer which fixed my issues.

 

See this thread for more info: http://www.head-fi.org/t/708939/problem-with-schiit-mjolnir#post_10442989

post #3138 of 3149
Nice. I've had that Tripp Lite in my cart on Amazon for a long time. Just gotta buy it finally.
post #3139 of 3149
Occasional pops are probably your USB cable. Electrical noise is fairly consistent. I went from my garage USB cable to a $15 one and was cured. Even wiggling the connectors wouldn't cause it, I think it's just the cable itself. Something to try at least.
post #3140 of 3149

Ended up getting a Furman power conditioner and plugging the Mjolnir into it's own bank separate from all my digital gear, I have not since experienced that weird AC anomaly I mentioned earlier in the thread, also the noise is ever so slighly less evident(I can get further on the pot with nothing playing before I can hear it) however the biggest difference?? The Mjolnir is running SIGNIFICANTLY cooler temperature wise, I was always a bit uncomfortable with the amount of heat it put off(I sit right next to it more or less) and this is a definite improvement, my room already has issues getting too hot with all my gear running. A+ would recommend.

post #3141 of 3149
Quote:
Originally Posted by Ultramus View Post
 

The Mjolnir is running SIGNIFICANTLY cooler temperature wise

That seems odd... Any ideas on explanations as to why?

post #3142 of 3149
Quote:
Originally Posted by BeyerMonster View Post
 

That seems odd... Any ideas on explanations as to why?

Honestly, no idea why, maybe my wall outlet AC and/or the surge protector I initially had it plugged into was utter crap and throwing a lot of noise/interference? I'm not an electrical engineer, so I have no idea, but I have had the MJ for a while and it is normally pretty freaking hot after several hours of gaming/listening, and while it is still obviously warm, it feels noticeably cooler than before I had it on the power conditioner. My evidence isn't exactly scientific here, maybe someone more experienced in power delivery could chime in.

post #3143 of 3149

wow that is super weird.  does the furman do voltage regulation?  maybe your wall doesn't give proper 120 volts

post #3144 of 3149

Even if it doesn't that shouldn't be a problem. 

post #3145 of 3149

I haven't had any noise problems with the mjolnir but it does get hot after a few hours... much warmer now that I added the gungnir underneath.  For some reason I like to touch it with the back of my hand to feel the warmth.   It's quite addictive.

post #3146 of 3149
As far as I know the Furman will only regulate if voltage goes to dangerous levels. I feel like my AC must have been having crazy weird modulations or something of the sort, if I get around to it I'll try to temp check it running from the conditioner and from the wall.
post #3147 of 3149
Quote:
Originally Posted by brokenthumb View Post
 

I haven't had any noise problems with the mjolnir but it does get hot after a few hours... much warmer now that I added the gungnir underneath.  For some reason I like to touch it with the back of my hand to feel the warmth.   It's quite addictive.

I use mine as a hand warmer on top, it's just the right temp… :atsmile:

 

JJ

post #3148 of 3149
I always think the heat in Mjolnir to be an asset rather than a liability.
When I want to listen to music, I always wait until Mjolnir is warm to the touch, sort of confirmation that the system is ready.
post #3149 of 3149
Quote:
Originally Posted by jrprana View Post

I always think the heat in Mjolnir to be an asset rather than a liability.
When I want to listen to music, I always wait until Mjolnir is warm to the touch, sort of confirmation that the system is ready.

 

Yeah, when I arrive home after work I usually fire up the gungnir and mjolnir first thing then when I'm ready to listen they are good and warm.

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