[inertianinja]

  @inertianinja, nice work there.  Any issues with cooling? or does the vertical orientation cool better?

 
We'll have to see about the cooling. I haven't tested it yet. I have a hard time believing that it'll be much different just because it's sideways, but the current design does block the bottom vents. I have to try put a channel in the bottom to allow some air in there. In any case it's not like i'm running them in a total enclosure or under a blanket!
 
Even so, I think the main cooling mechanism for these amps is the chassis as a big heat sink. If anything I think there's more room for air to touch the surfaces (certainly for the Bifrost), but I will do some testing to see.
 
Even if the cooling is a bit compromised, I'm not *too* worried about it because I never run the amp for more than a few hours at a time.

 

[DavidA]

@inertianinja, for me in Hawaii during the summer the Lyr2 gets a little too hot for my liking so I've started to use USB fans to cool it.  Also, I tend to leave it on for long periods of time, sometimes 48hours on the weekend.

 

[inertianinja]

@inertianinja
, for me in Hawaii during the summer the Lyr2 gets a little too hot for my liking so I've started to use USB fans to cool it.  Also, I tend to leave it on for long periods of time, sometimes 48hours on the weekend.

Yea that'll do it
I'm testing it NYC in January, no fans needed!

 

[applebook]

When it's HOT, you know that it's working

but I've never had a tube amp/ preamp whose volume knob gets so hot too. Even my 1/4" jack gets very warm. I had to put a plate in between the Lyr and my DAC.
 

 

[DavidA]

@applebook, might want to look into a USB fan since your computer is right there

 

[inertianinja]

Hey - in response to the concerns raised by some - I did check in with Schiit about using the Lyr vertically, asking if there was any cooling problem. They said no problem!

 

[TAsme]

Hey guys!

Are you using tube savers? If yes, which onewould you recommend me?

Best,
Steve

 

[DavidA]

Hey guys!

Are you using tube savers? If yes, which onewould you recommend me?

Best,
Steve

I've been using these for a while now, no problmes and construction is really nice
 
http://www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm

 

[applebook]

Does anyone know if HIGH gain is automatically biased to class A/B? With my TH900, it sounds noticeably more strident and sibilant than LOW gain with the stock tubes. LOW gain is much smoother and more refined.

 

[applebook]

  @applebook, might want to look into a USB fan since your computer is right there

My PC is optimized for silence, so I'd prefer not to have an external fan beside it. I'll try socket extenders instead. They look better anyway.

 

[tjc303]

@applebook:
I'm not sure, but I have noticed the same with my LCD-2r1s.

 

[DavidA]

  Does anyone know if HIGH gain is automatically biased to class A/B? With my TH900, it sounds noticeably more strident and sibilant than LOW gain with the stock tubes. LOW gain is much smoother and more refined.

While I try to optimize my PC for as quiet as possible I found that the location of the PC is just as important to how much noise I hear from it and since I usually need to have the AC on it really doesn't matter much since the AC system has more noise than the PC its a moot point.  Also, if you choose fans that are quiet and control the speed there is very little noise.

@applebook:
I'm not sure, but I have noticed the same with my LCD-2r1s.

I haven't noticed any difference between low or high gain, I use it mainly to get better range on the volume pot.  Since most of the headphones that I use with the Lyr2 are higher impedance or not very efficient (HD-700, HE-560, and HD-650) I usually leave it at the high gain setting.

 

[axtran]

Is it just me, or is it near impossible to find a pair of LISSTs?

 

[coletrain104]

  Is it just me, or is it near impossible to find a pair of LISSTs?

Not just you, I'm wondering if they're not producing any? otherwise, they may just not be meeting demand on them. I hope there's nothing wrong with them

 

[DavidA]

Schiit show them as out of stock but no date to when they will be available again so they might not be making them anymore.  FWIW I tried a pair and sold them right after that, a little to dry and thin sounding for me.