New Schiit Lyr: Hybrid 6W Headphone Amp. Yes. Six. Watts. RMS. - Page 21

I want a four on the floor stick shift on my Lyr.

Hmmmm, now there is a custom niche market someone could fulfill.....

First I've gotta find my black rattle can. <<scratches head>>

or just replace the switch with a stick switch if any exist and create some kind of key hole which a key locks it into the on position?

That would be a rather epic design albeit something I would never buy.

If my source has a volume pot, I'll just remove the Lyr's volume pot, just make it an amplifier. But that void the warranty

Quote:

Originally Posted by Skylab 

Quote:

Originally Posted by wuwhere 

Also most volume pots are log tapered, meaning the resistance is applied logarithmically not linear.

Indeed, but this will be an interesting thing to learn about the Lyr - if one does try to use it with high efficiency headphones like Grados, will one be restricted to such a small portion of the volume control's range that it becomes difficult to use?  I'm not saying this will be the case, but it could be.  Only time will tell. 

 

But of course the real purpose if this amp is for those much harder to drive cans.  And for that, if it delivers the way the first two Schiit amps have, it will be a godsend.

Quote:

Originally Posted by wuwhere 

If my source has a volume pot, I'll just remove the Lyr's volume pot, just make it an amplifier. But that void the warranty

It is a good suggestion to use a source with volume pot, to use as a preamp if needed.  Many of my sources have a volume control, including my uDAC-2 and HDP, Apogee mini-DAC, and PS Audio Prefectwave DAC.

Firstly, a mistake of mine I need to clarify (sorry Jason):

Originally Posted by gogogasgas 
Valves/tubes. Bummer (for me) the unit isn't a super-duper version of the solid state Asgard - now that could be a giant killer. Jason said something like it was hard to get the Lyr's current to a sufficient level to maintain pure class 'A' using tubes. I repeat, an ass-kicking version of the Asgard would do nicely for we solid-state folk. Perhaps that too is "in the works".

Originally Posted by Skylab 

Indeed, but this will be an interesting thing to learn about the Lyr - if one does try to use it with high efficiency headphones like Grados, will one be restricted to such a small portion of the volume control's range that it becomes difficult to use?  I'm not saying this will be the case, but it could be.  Only time will tell. 

But of course the real purpose if this amp is for those much harder to drive cans.  And for that, if it delivers the way the first two Schiit amps have, it will be a godsend.

I want to get front-end pieces of the audio chain together before I buy my next headphones (likely candidate: the LCD-2s). So, in the meantime, I will be using my trusty Senn 650s. I too wonder if I would have much adjustment on the volume pot when using my 650 'phones.

Jason, can you explain the following statement, which I lifted from the Schiit website. Are the opamps are in the signal path?

"Lyr uses an op-amp for its DC servo, so we can be DC-coupled at input and output. For a DC servo, op-amps are fine. Theta used ‘em. Sumo used ‘em. Swapping it for some super-expensive part won’t change the sound–the servo is essentially out of the circuit by 1 Hz."

Also, like others, I would like a balanced version of this amp. I wouldn't like to pays me's money and find out a balanced version was due for release in six months time....

I think by a logarithmic scale it means log(y) = x

where y is the volume, and x is the distance you turn on the knob,

this means that dy/dx (i.e. the change in volume per unit of distance turned on the knob) is dy/d(logy)*d(logy)/dx = y

or dy/y= dx

the proportional change in volume is equal to the change in the distance turned on the knob (e.g. every 1cm turned on the knob increases volume by 10%)

if you plot a logarithmic scale in the x-y plane, it should look like y = e^x

Quote:

Originally Posted by revolink24 

 

Quote:

Originally Posted by kwkarth 

 

Volume controls are logarithmic in their progression through their resistance range.  The first 30 % of rotation give you very fine control over very minute changes in volume and power.  The next thirty percent of rotation apply a little more power so that at the end of the first sixty percent of rotation you're accessing maybe 20% of the amp's power on tap.  Remember, the output volume is still wholly dependent upon the input signal volume.  Quiet is still quiet whether you're at 0 volume or 60% volume.  The last 30% of the rotation of the volume knob gives access to the rest of the amplifier power.  You basically would never need to go there.

Huh? Last time I checked audio pots were logarithmic because that was how human interpretation of decibels worked, and also that in a logarithmic function, the function varies more at the start, not less.Logarithmic potentiometers in audio are used to give the perception of linear volume.

Jason, thanks for the new post. Although I know this thread is about the upcoming Lyr, I'd like to put in a special order for a new Schiit headphone called the 'Ström' (Nordic for swiftly flowing water)

The 'Ström' has much of the design of the Lyr, perhaps with an all solid state solution to that valve/tube set-up and:

1. Balanced and single-ended inputs and outputs

2. A pre-amp with multiple input selection

3. A two box set-up, using two of your existing silver boxes, with the bottom box housing two separate, over-engineered power supplys

4. Be a completely 'dual mono' design

5. And something essential to proper listening pleasure, two analog VU meters! Woof!

Originally Posted by revolink24 

Somehow I doubt we'll ever see VU meters in Schiit gear. Leave that to Mac.

So how then can you tell that the 'Ström' is going to '11'?

Had to break my New Years' resolution, no more buying schiit!!

Looking forward to it; 

Hope it works nicely with the Audio-gd Compass dac, granted, the Compass is beginning to show it's age.