well your post could use a bit more info...however, i'll add my 2 cents.

use a direct box. if your ona budget whilrwind makes a decent one i used for a while for like $40

also-on your bass, im quite sure the ibanez sg basses have active pickups, so check yoru 9 volt on the back panel, make sure its got some juice in it.

if you are a bass player, you also can look into a dedicated bass plug in. ampeg makes one that i use (i think its by ik mulimedia). i cant remember its name, but i use it in pro tools. its got lots of prest cab and mics and such. i use it all the time but ...oh wait-it just came to me its called ampeg svx

regards
sean quinn
sorry- im not familiar with that song...but im up late and thought id gab for a bit.

altough I haven't heard the tune and can't comment on the tone ...I can tell you the signal chain was probably not cheap. getting fat bass tones is an artform and it comes from the player's fingers. I would look into what the player plays thru and well as his technique. and one last thing, the bass itself will make all the difference in the world ..I would say moreso than a guitar would.

Most of the bass lines in Yoshimi are synth bass.

For those, you need something like a mini-moog.

That's a great record too. I'm seeing the Lips in a couple weeks.