Schiit Jotunheim - Headphone Amplifier - Official Thread

Another Jot 2 tidbit is the Jotunheim has about 1/4 the bias of the Asgard 3.

Do the math and u see a similar smaller Class A subset of current with the Jot2 as with the Asgard 3.

Whats not to like!!

Alex

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nice.

I am just happy it can supply ample and nice current to my HE6SE. It’s a fun listen with this combo. Was looking to some other amps to upgrade before the Jot 2 came out and seems to work pretty well for this headphone. I hate buying specific amps for headphones, never thought I’d be doing that, but here I am with a very specifc tube amp for my Verite and a specific amp for my planar – granted the Jot 2 has much more versatility than just this headphone.

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Another favorable review of the Jot 2, including driving the Susvara (or was it Sundara) and Diana Phi.

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Sunday.

Excellent amp for sure…

Just a few words about the Jotunheim 2, now that I’ve sold and shipped it to it’s new owner…

This really is a fantastic little amp. I still believe that it’s better for brighter headphones and users looking for a warmer sound that doesn’t sacrifice on details or impact. It works extremely well with the Verite and Auteur. Quite excellent for Emu Teak and the TH-600/900 Foster line too. I would highly suggest this over the Asgard 3 for that use.

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Ah, so almost opposite of how the Jotunheim 1 was? I always thought the Jot 1 paired well with dark headphones, like the HD6XX was a great pairing with it. Interesting to hear!

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Can anything be stacked on the Jot? It has the open plate to ventilate on the top. Can another Sciit amp be stacked on it?

Page 2 of the Schiit Jot OM. #3 on the right side of the page addresses ventilation.

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Got my Jot 2 yesterday. I have some 3 hours of listening done. Listened through the SE out with my HD800 and noticed a hint warmer tonality vs ADI-2 DAC’s hp amp. Higher registers seemed a bit smoother too. Not too big of a change though.

Clear from SE out seemed pretty similar too, until I hooked them into the balanced out. This is where Jot 2 started to shine. Bass punch and clarity got much better and overall instrument separation took a noticeable step forward.

More listening is absolutely needed, but I can’t wait to receive my Periapt balanced cables for my LCD-2 & HD800. Should be very interesting and lots of fun.

I was looking at Rebel amp and Flux FA12 too, but their size basically ruled them out from being placed on my cramped desk. The new Jot seems to be pretty versatile, which is needed for my varied set of headphones.

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Congrats @Zed_Bopp , that’s a great setup. I bet the neutrality of the ADI-2 and the punchy sound of the Jot 2 blend together really well.

I noticed the difference in sound in my Jot 2 as well, and I found it pretty useful, because I can choose the SE outputs if I want a less engaging, more relaxing listening session. Switching between low and high gain has a similar impact too.

My original (faulty) Jot 2 also sounded a little brighter when I was using the balanced inputs, and I used the SE inputs to tone that down. When the replacement Jot 2 (which is not bright in any way) arrived, I just re-used the same interconnects into the SE inputs and it sounds perfectly fine to me, so I didn’t do any more experimentation. But something to play around with if you’re curious.

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For the best performance, you want to take the RME unit out of “Auto Ref Level”, set it to something like +4 dB, and set the volume on it at 0 dB. Then let the Jotunheim handle the volume.

Otherwise you’re doing digital volume control on the RME and analog attenuation on the Jotunheim.

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Does this affect SQ? Guess I have to try this, cheers!

In theory, the digital volume control should be audibly transparent (and RME’s is one of the better ones), but that’s not the same as bit-perfect. There’s just no reason to do volume control on both, as that’s how you get the worst of both worlds.

You could run the Jotunheim set at full volume (effectively taking its pot out of the circuit) and do all the volume control on the RME unit (which is technically lossy, and reduces available dynamic range). It’s safer to not to do that, however, and instead run the RME at 0 dB (no attenuation) and control the volume in the analog (lossless) domain on the Jotunheim.

Whether you can hear a difference is one thing, but it’s definitely measurable.

Also, don’t be tempted to leave Auto Ref Level ON and then turn the volume up to 0 dBr on the RME unit, as that’ll almost certainly cause the input stage of your amplifier to clip - which will sound terrible.

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The adi-2 owner’s manual has pretty good instructions on setting up the device for dac only mode. There are several steps.

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Enjoy. I found the XLR out to have the superior technical performance. SE out has added distortion, which makes for a less analytical and more enjoyable listen for certain moods and genres.

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I have the Lyr 3 and my with my Aryas I have the volume setting up high which causes the protect circuit to trip way way too many times. I can’t deal with that. This doesn’t happen with the 6xxs since I can have the volume dial set lower for the same level.

Anyone know if the Jote has the same protection circuit set at the same sensitivity? I could go Jote and the Saga pre for tubes if it will get me away from tripping the protection circuit.

Peace

I’ve run the Jotunheim2 with the Arya with no problems, se and balanced. Don’t know the specifics about the protection circuit.

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I ran 100 or more hours on Aryas with Lyr 3 with half of those at quite loud volume (75%) of max on high gain setting (break in of headphones at night) and had zero issues with protection circuit. I only mention as it may be an issue with your specific amp. For reference my amp is less than six months old so maybe Schiit made change from when your’s was made or something is actually wrong.

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Ok, that’s really good to know. I’ll swap it out and try a new Lyr. Thanks.

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Apologies if I’ve missed something going through this thread, but wondering if anyone has any definitive opinions of the sound of Jot 2 vs Jot 1. For me, the addition of the cutout switch is almost worth the price alone, but I’m gathering from the discussion there are other differences. My main cans include HD880S, HD650, Focal Clear MG and Celeste and the Jot 1 has been serving me pretty well with all of them (plus a few other less-frequently used sets).

Cheers,
D

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