I agree with you on your thoughts on the role of audio products and the passion and emotion of music.
Everyone hears differently, everyone's ears and head are different shapes (which especially affects headphone listening), and everyone's life experience prompts different emotional responses (especially if the artist/recording captures that). . . . and so, with that proviso out the way . . .
The Burson definitely has great oomph with no boom,bloom and muddy gloom . . it's clean rich warm NATURALLY textured lower mids down to bass end is absolutely what I love about the Burson.
I think some people confuse this natural, fast textured warmth as "tube like", for me the difference is that the Burson is in control of it's low end warmth, and indeed, on recordings that are a little off (some 80's pop recordings for instance - Peter Gabriel) the Burson doesn't add warmth, only control and texture.
For me, the best explanation/demonstration of the controlled rich (not muddy) tone of the Burson shines through on Cello, clarinet, Double Bass, piano and also any percussion. Listening to the Burson makes these instruments have body, texture and tone, detail throughout the mids and lower mids . . that helps you hear not only what the musicians are playing, but how they are playing their instrument both as an individual and in the context of playing together with other musicians.
As I listen to jazz and world music - hearing percussion (Djembe, bongo, conga etc) on the Burson is quite awesome, you can hear what part of the musicians hand hit which part of the drum and how hard they hit it . .you can hear how tight the skin is on the drum, you can nearly feel the impact as if it was indeed a live instrument in the room with you, not a recording . . . the Burson has a real knack of making percussion sound really truly live . . . I think it has excellent Pace Rhythm andTiming as well as a full range of textures and a naturally convincing control - invigorating stuff indeed!!
I also think the soundstage is very good - not overly huge in height perception, but excellent in width and depth.
It has a very stable and realistic placement of instruments left to right and front to back. I find that it is also quite interesting that it seems capable of producing a square or rectangular shaped sounding space (as real live music is often performed in) rather than the elliptical or circular sound stage perception I normally find I get on Headphones from other headphone amps.
May I suggest you organise to listen to the Burson and the BCL for yourself to see how you hear it, but for me, the Burson isn't just technically good, it helps music sound textured,organic and as if the musicians are performing together, yet still has the smaller details of each instrument and musician.
all the best in your search for audio bliss.
Simon
"bfwiat - I believe you meant that the Burson gives open dynamic headphones like the HD 650s as much slam as closed dynamic cans. Agile, fast and clean are all words I associate with live classical music, but I also associate texture, "ommph", body and weight, but never "muddiness".
From a technical perspective, the Burson seems to have better SNR and more output power, the other specifications seem similar.
I also don't think that it is the role of any piece of high fidelity equipment to provide "soul", that should have been done by the musician in the original performance and then captured by the recording engineer in consultation with the performer. In that way, I think of hi-fi gear as a precision tool (like a lens) that allows you to "see" or "hear" the music with great realism."