Pros: Full, thick sound full of dynamic and life, tube rolling
Cons: Tube rolling?
I bought this after having the Schiit Asgard for a month with my HE-400's because I felt they were worthy of more power: I was spot on. I was very hesitant to dive into an amp twice the price that looked the same, but that tube/solid state combo, combined with the sheer power it delivers is nothing short of amazing.
I bought these exclusively for my HE-400's, but they should be a top amp for most high end headphones. The pre-amp function was a big seller for me as they turn my 2.1 computer system into something very unique.
Compared to the Asgard, the sound on the 400's is a lot fuller and the volume knob feels almost COMPLETELY linear. This is a rare thing, trust me. With EQ I found myself getting close to the max with the Asgards volume knob, but with the lyr in most cases I only need half the volume. I have bought a bunch of tubes for it, but haven't gotten to try them all out.
Let it be said that this should be one of the best hybrid amp values out there. I wanted the best for my 400's without being sucked into extravagantly priced amps. The lyr gives amazing sound and is actually worth it's asking price.
PLEASE pick this amp up if you own headphones that crave power like these Planar drivers, you will be extremely pleased.