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Schiit Mjolnir headphone amplifier - Page 212

post #3166 of 3526
Quote:
Originally Posted by Eee Pee View Post
 

For me, it just depends on the day, or time.  It can be a Mjolnir 650 night, or an 800 night.  If neither those then the 600s.  If not those, I usually just turn on Gran Turismo and use the 700s.  :D

 

My sources can be a tad dark, or smooth as I like to imply.  :D

:beerchug:

post #3167 of 3526
Quote:
Originally Posted by .Sup View Post


MJ sounds like it could be it for my HE-500. I have a balanced DAC but not a balanced amp and would really like to try and hear how balanced is.

Ok, gotta go, the Crack is warmed up and 800s are waiting. Laterz wink.gif


The Mjolnir wouldn't be my first choice with the HE-500. While not as bad as the HD800, the HE-500 strikes me as too forward and grainy with the Mjolnir.

post #3168 of 3526
Quote:
Originally Posted by Butler View Post


Common? No.
It is a ground loop? No, I've tried a GFCI oulet, and I've ungrounded the the device with a 3 to 2 prong adapter.
It happens on any plug in any part of the house, with no source and the volume all the way down.

Does it happen to folks from time to time? Certainly. I googled it and that's how I deduced the source of my problem and the likely, and costly, solution.

Have I ever had an amp that was this picky about how "clean" the power is? No.
Have I ever had an amp this high in quality though? No.

I love Schiit products, I've owned at least 4 now, but it's a little frustrating.

I understand what you're facing.

 

Sometimes the infrastructure we find ourselves in, is just plain inadequate to provide us the necessary 'foundation' for really good tunes.  Houses that reverberate like drum heads, power that is flakey, non-standard code electrical distribution among many other difficulties.

And especially with a lower power draw headphone system, to be hampered by power line zizz is frustrating.

I too hear small zizz when a stove element kicks on or off. Fortunately, for me, it only happens when we are cooking…  

 

One thing to try is to replace a 'chosen' receptacle with a new one.

Sometimes duplex receptacles 'wear out' and the connections become flakey.

It’s a cheap and easy experiment to see if it is contributing to the problem, or not.

 

Another experiment is to use a UPS, like those used for a computer.  It isn't an ideal solution for a couple of reasons, but it may just help enough.

 

And lastly if you have access to the main breaker panel, and are handy with a screwdriver

AND KNOW WHAT YOU'RE DOING!…

Tighten EVERY branch circuit breaker wire at the breaker in the panel.

And

ALL of the neutral and ground connection screws.

 

And let me add if you aren't familiar with what is involved with this, find someone who is…  It's not worth electrocuting yourself just for some zizz…

 

But I'd bet between the main breaker panel wires getting tightened and a new duplex receptacle it just might 'cure' your bad case of zizz.

 

JJ


Edited by johnjen - 4/23/14 at 7:37pm
post #3169 of 3526
Quote:
Originally Posted by johnjen View Post

I understand what you're facing.

Sometimes the infrastructure we find ourselves in, is just plain inadequate to provide us the necessary 'foundation' for really good tunes. ...

JJ,

I appreciate your thoughtful response and insight.

I like that endearing term for the sound- the "zizz". It occurs throughout the house, so I don't believe it to be the outlet.
I don't dare mess with the electrical box, but ours was recently redone- our house is from the early 40's and it had been redone right before I purchased the property. It could be something I would look into more after I deploy the isolator/noise filter.

I too believe it to be dirty power, I do hear pops and variance of the zizz in the right channel as lights and other electronics go on and off.
I do find it interesting that it is only the right channel, and do not experience this with other amps.

At Schiit's advice, I've ordered a Tripp Lite IS500HG Isolation Transformer with Faraday Shield to attempt to "clean" my "dirty power".
I will report back with the results when it arrives, I'm hoping for the best.
post #3170 of 3526
Quote:
Originally Posted by Butler View Post

[...]

I too believe it to be dirty power, I do hear pops and variance of the zizz in the right channel as lights and other electronics go on and off.
I do find it interesting that it is only the right channel, and do not experience this with other amps.

At Schiit's advice, I've ordered a Tripp Lite IS500HG Isolation Transformer with Faraday Shield to attempt to "clean" my "dirty power".
I will report back with the results when it arrives, I'm hoping for the best.

 

My Mjolnir exhibits the same symptoms. Right channel zizz, except it's a seemingly random occurrence for me.

 

My unit also buzzes. I have my amp on my desk, an arm's length away. The buzz is sometimes audible through open headphones during quite passages in the music. Annoying, but I've learned to live with it.

 

The Vali has no such issues, and neither have the other amps I've owned.

post #3171 of 3526
No mobile phone around ??
wireless game pad ??
Edited by TontonJoK - 4/25/14 at 11:41pm
post #3172 of 3526
The pl8c cleaned up my power for me, but Tripp lite has a good reputation as well, looking forward to your comments.

As for the pairing of he-500 and mj, I do not find any graininess through my setup, and the slight forward tilt is preferable to me, if I wanted it to be more laid back I'd get an lcd2 or a 650.
post #3173 of 3526
Quote:
Originally Posted by Butler View Post


At Schiit's advice, I've ordered a Tripp Lite IS500HG Isolation Transformer with Faraday Shield to attempt to "clean" my "dirty power".
I will report back with the results when it arrives, I'm hoping for the best.

You ordered the 500 watt unit.  The 250 watt unit is a chunk cheaper.  Did Schiit specifically recommend the 500 watt unit?

post #3174 of 3526
Quote:
Originally Posted by Ultramus View Post

The pl8c cleaned up my power for me, but Tripp lite has a good reputation as well, looking forward to your comments.

The TrippLite Isolation Transformer has not addressed the issue with the buzz in the right channel, looks like Schiit is going to want to take a look at it at this point.
post #3175 of 3526

Maybe it's placebo, but I turn down digital volume on my pc to 50%.  I have to turn the dial up a bit more on the Mjolnir but the sound is a lot smoother, less "shouty", and warmer with the HE-6.

post #3176 of 3526
You are losing bits (dropping musical data) by doing attenuation in the computer. You aren't imagining it, but although you might be pleased by it, you aren't getting an accurate sound.
post #3177 of 3526
Quote:
Originally Posted by Maxvla View Post

You are losing bits (dropping musical data) by doing attenuation in the computer. You aren't imagining it, but although you might be pleased by it, you aren't getting an accurate sound.

 

Depends on your DAC and audio files whether this is actually true. If you're sending 16-bit audio files to your DAC at 24-bit, then you're actually just losing one of those extra 8 bits of padding, not any musical data (at 50%).

post #3178 of 3526

Not bitperfect regardless. So blasphemy!

post #3179 of 3526
Quote:
Originally Posted by paradoxper View Post
 

Not bitperfect regardless. So blasphemy!

 

Burn the heretic!

 

 

(and yes, very true that it's not bitperfect, but I still intend to always leave my DAC in 24 bit mode even though most of my music is 16 bit :))

 

 

Edit: Oh, and while not bitperfect, if you're doing as mentioned above at least you aren't throwing away actual musical data, just the padding zeros.


Edited by Defiant00 - 5/19/14 at 8:12am
post #3180 of 3526

I would assume most of you are following along with Jason as he posts up about Schiit, but if not, the latest chapter is about the Mjolnir.

 

http://www.head-fi.org/t/701900/schiit-happened-the-story-of-the-worlds-most-improbable-start-up/1080#post_10566213

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