I don't think the Modi 1 has the Expert mode switch that can take advantage of the drivers, thus the Modi 1 has a limited range of rates and resolutions.
i'm still learning so feel free to correct me if any of my assessment is far from the mark.
During my search of auditioning the hd650, i happened to listen to them through WA7 and WA3. That adds my
amp listening experience to those and my magni 2 uber. And fiio e10k and fiio 07k in the past. I have to agree with what StanD said to my own questions in the past few weeks regarding desktop amps in relation to
increased in sound quality and headphone driveability
.
I have to say that after listening to WA7, that a properly designed solid state amp will be able to provide both current and voltage to many headphones. What i mean by it is that in relation to sound, most headphones will sound optimum with a good designed solid state amp. While specific amp that i tried, like the WA3 OTL tube provide their own specific coloration to the sound.
That said, barring planar headphones, i would say that most dynamic driver headphones will be drivable by a properly designed amp, regardless of it's price.
For my own case...
if I were to buy a lyr 2, i'd buy it if i have a planar headphone that needs it.
if I were to buy a valhalla 2, i'd buy it if i have a high-impedance headphone to pair with it.
if i were to buy an asgard 2, i'd buy it to get a more refined sound quality.
However, I have to say that for most people that are new to amps and dacs, and visit schiit thread with questions in mind regarding what kind of sound quality to expect when pairing their headphones with amps, and what amps to choose, you won't miss that much by not getting a $xxx amps.
If you have limited budget or space,
you aren't missing much with choosing magni 2 uber or
asgard 2 in comparison to other solid state amps offering.
In fact, i learn that the assessment of older members here are correct in that magni 2 uber has
tremendous value. For $149 you get a good solid state amps that won't lagged far behind other solid state amps (portable or desktop) that is triple or quadruple it's price.
I myself was playing with the idea of getting an asgard 2. (only decided against that due to space limitation).
Magni 2 uber reproduction of treble is crisp but a little less refined. Based on my own readings i know for sure that Asgard 2 provide smoother sound to the music overall.
That's
mostly what you get from the extra $100 from the asgard 2 vs. the magni 2 uber. For experienced audiophiles and people that also have a decent-to-high-end speaker system on their home and cars, i'm pretty sure there's some arguably noticeable difference between magni 2 uber, asgard 2, and say, WA7 Fireflies.
But for confused new people that doesn't even know the difference between one amps to another, here's the gist of my experience...
if i have more money and space, and my headphones are dynamic driver headphones, i get an asgard 2.
if i have less money and / or space, i'll get a magni 2 uber.
if i have planar headphones, i'll get a lyr 2.
if
you have a high-impedance headphones that likes specific OTL tube amps,
you could get popular OTL tube amps. Common recommendations includes WA3, BH Crack, and Valhalla 2.
You won't miss much from not getting an asgard 2. In fact, for $149 you get
a lot out of what asgard 2 is giving you for the extra $100 asgard 2 ask.
Tube amps to dynamic driver headphones I found is more about the enjoyment of the hobby (and what is commonly called synergy).
As in it provides specific coloration to sounds.
Subjectively, the music sounds
better. Yet it doesn't make the headphone sounds worse if you pair it with a
meagre $149 amps. In fact, with $149 or $249, it could be the last amp you'll ever need if you aren't into the hobby and just want
a decent system to enjoy music.
I might be wrong but i consider Audiophile is a hobby, while music-lover is universal.
A music-lover will benefits from having a decent setup so that the music will sound
proper.
In that sense, a decent dynamic headphone with a schiit uber stack is as decent as it gets for as little money as possible.