I downloaded it from here: [freemuzon]
That's the same audio found on the YouTube posting Barry linked to in his original post—it's undergone some
serious dynamic compression. There's a cleaner version floating around on the Internet, captured directly from Bartók Radio without all the dynamic "squashing." Not sure that would mitigate your "tame and underwhelming" impression, though.
I've listened twice and find the performance quite impressive.
James