Okay, it's all much the same goodness, but doing it differently.
Now let's really confuse you. From my other review: The Headsix sound signature when fed an analog signal from (1) headphone out of laptop and (2) with the Headstage USB DAC is one way - More forward.
I felt this forwardness was nice with the "warm Meier sound signature". Of course, this was sometimes a bit too much on some program material (like in certain small live venues or some percussion material), but perfect for others (like woodwinds and vocals, or huge sucked-out live venues). Others have noticed they can take their Meier home amp to low gain and change that sound signature, from warm/forward to more detailed highs and powerful bass.
I haven't tried that with the Headsix yet BUT, if I then feed it (3) a signal from the iBasso DAC and the soundstage it pulls back just the right amount and sounds even better, while still on high gain. Until I found a better opamp for the iBasso amp section, the Headsix with iBasso DAC clearly beat the iBasso amp using it's own internal DAC connection.
While the Lyrix is the opposite with changes upon using different sources. The soundstage moves forward a little more with the iBasso DAC, and then it sounds better (sounding just like what a Headsix sounds on the iBasso DAC). However, the Lyrix and Headsix only sound like each other when either amp is fed the signal from the iBasso DAC. I wondered if the input impedances or something else are very different.
I posed this question in the other amp/DAC comparison thread, asking why that could happen. It makes sense that the load the amp puts on the source (whether headphone out, Headstage USB DAC, or iBasso USB DAC) can alter the sound of the source - similar to how a resistor between a headphone and amp can change the color of the sound. The iBasso DAC may be more stable to putting out the same sound with varying loads that it sees when feeding different amps.
We came to that conclusion (more stable) because whether the iBasso was driving ONE amp or TWO at the SAME timen (with a splitter), there was no change when listening while plugging-in and unplugging the second amp! Try that with two headphones on one amp, and you'll hear the change in sound when the extra headphone is added and removed from the circuit.
Anyway, I find that I am now using the tiny Meier Headsix exclusively as my portable iPod amp now, the Lyrix is small enough to be used all the time with my laptop with it's built-in DAC, and the larger iBasso D1 now spends all the time with my bedside optical out CD player.
I could probably sell my Tomahawk and PenguinAmps now (which are all quite good too) to fund an Arietta or Cantate home amp, to use with the iBasso DAC at the bedside. Something I am seriously considering if I convince myself to not experiment with the tube route first.
Someone stop me