Whatever the reason, the bass response is better than usual, as captured on this particular disc. I have friends in London who think that RFH does, indeed, sound better. One person I know, who I feel has a very keen ear, thinks that RFH sounds much better than previously. I can't judge because I haven't been there in decades. But I noticed a huge difference right at the start of disc 1 (double basses and celli)
To address a previous response, I think the scherzo is terrific. Just follow the clarinet phrasing, if nothing else. You can almost hear the vocalist from the corresponding Wunderhorn song. Yes, the tempo jumps around a bit, but not destructively so. This is still an early Mahler symphony, and it shouldn't sound mature beyond its years. There's still a bit of influence from Franz Liszt in the 2nd symphony (and maybe Berlioz as well). That's just an opinion.
Yes, there is more to ANY Mahler symphony than just organ, bells and tam-tams. I would not be enthused about the the Jurowski if I thought that that's all it had going for it.
Also, because I like the Jurowski, doesn't mean that I now dislike Bernstein (the early N.Y. one), Klemperer (especially the live BRSO one), Andrew Litton (I like the tons of separate tracks), Stokowski, Fischer, P. Jaarvi, Ozawa/Saito Kinen, or any of the other ones I've chosen to keep for various reasons.
And by the way, the LPO timpani over-pound on many of the Tennstadt recordings as well, but everybody (not me) would describe a 'live' Tennstedt performance as inspired and passionate. I feel that much of his late work borders on the overwrought. As I said, I'll take this over the highly touted Tennstedt (the live one) any day.
I edited this entry because much of what I had to say was not conducive to a positive, objective conversation.
Barry