Jethro Tull fans? Options

[bsmooth]

I've really been into Tull for ages, especially his earlier; Agualung, Benefit, but the albums just don't seem to be well recorded at all. I've been playing with the files in Audacity, and some just look terrible on the graphs shown bt frequency response, there just straight lines with no dynamics at all. I remeber seeing the same frequency response charts for albums, and even they look better.
What would be your advice for me to somehow improve these recordings? His later stuff is great as well, and I especially like Crest of a Knave, and A Little light night music(I think its called), which seem to be much better recodings. I did a search here and it would seem the recordings and studio shall we say weren't quite finished.
Anyway to get the recordings of the DCC Aqualung without spending an arm and a leg? Also I saw there were "Red Label" recordings under a remastered CD's thread, and wondered what those were and If they were available.
Matter of fact anyone who could be of assistance in the help of letting me know what the best recordings of Tull are ? maybe there still vailable somewhere.
Too bad I can't rent the better recordings , but I understand that would be a copyright infringement. When do copyrights run out anyways?

[db1989]

the albums just don't seem to be well recorded at all. I've been playing with the files in Audacity, and some just look terrible on the graphs shown bt frequency response, there just straight lines with no dynamics at all. I remeber seeing the same frequency response charts for albums, and even they look better.

I notice you didn’t say anything about how they sound! Visual representations of audio are neither any indication of quality nor a reason to be concerned, as long as it pleases (and, for lossy audio, fools) your ears.