We had a mini meet last night at rattesp's house. I was there along with dleblanc343 and a his friend Nico. We wanted to listen to the Mjolnir that rattesp just acquired from solude few weeks ago.
I brought my Bryston BHA-1 along with my W4S DAC-2 and my LCD-2r2 for comparaison. I arrived about an hour before dleblanc343 and his friend so I had the time to try and compare the Mjolnir to the Bryston with my LCD-2r2.
The Mjolnir sound really reminded me the Bryston sound for the first two months. Fast, detailled, punchy, with lots of bite and at the limit of edginess on certain tracks. It was lively and toe tapping but this in your face presentation could lead to listening fatigue I assumed.
Going back and forth with the Mjolnir and the Bryston, I would say I prefered the smoother presentation of the Bryston. Still resolving but with a warmer and more linear sound from top to bottom. The Mjolnir sounds more thin than the Bryston. Our host, rattesp, who tried a lot of headphones (T1, HD 650, HD 800, LCD-2r2 and HE-6) with both amps had the same impression. He said he would place the Bryston sound between the Mjolnir and his beloved B22. He heard the Bryston at my house few months ago and he agreed that the sound change significantly since then. Warmer, fuller and smoother. That could be the difference in using time between the amps (I have about 200 hours on the Bryston and we are not even sure the Mjolnir having 50 hours on it so it still can change his sound signature).
dleblanc343 and his friend arrived and they tried the HE-6 with both amps and their findings were the same as rattesp and me. They both prefered the Bryston to the Mjolnir. Especially Nico. They both say the soundstage and bass presence was superior on the Bryston along with a smoother presentation.
The build quality, finish, look (to my taste), touch feeling (volume knob) seems superior on the Bryston.
BUT we all agreed that for the price, the Mjolnir is a superb bargain and tremendous value. The Bryston retail price is now nearly twice the selling price of the Mjolnir.
Still, we are all curious what an other hundred of hours could do to the Mjolnir. rattesp offer me to land me the Mjolnir for a couple of days in my home set-up in a near future to have the time to do a lenghty comparaison of both amp. I certainly will accept his offer.
All the participants recognized that the fisrt attempt of Bryston in the headphone market was a really successful one.
By no means I wanted to step on anybody's toes here. I just want to share my experience (others here had the opposite opinion when they compared both amps) and let people know that there is other alternatives in SS amps (yet more pricey).