Hi. I have a question that I have yet to get a full, detailed, and accurate response to. I am a bass player and I love Geddy Lee's 1970's bass sound. I would love to be able to at least get as close as I can to recreating his setup and sound. So far the information I have attained is that he ran his Rickenbacker in stereo with the neck pickup going into an Ampeg SVT and the bridge pickup going into a Sunn 2000S. Each of these amps were running into 2x15" speaker cabinets. I know that he ran the neck pickup into the Ampeg for his clean low-end sound and ran the bridge pickup into the Sunn 2000S for his mid to high-mid overdriven (distortion) sound. From here I am clueless, mainly with the distorted sound. The Sunn 2000S does not specifically have a distortion channel to it. In fact, it only has volume, bass, treble, and contour knobs along with a bassboost switch and polarity switch (I have no idea what that does). None of these features are designed with bass overdrive in mind. What did Geddy do? Did he have some type of pedal boosting the bass signal before going into the amp? Did he just crank the amp to max volume which does not seem reasonable as that would be way too loud for any practical use (at least in a live setting when he's standing right in front of the speaker cabinets). Did he use special tubes in the power section of the Sunn? Any and all information with as much detail as possible would be greatly appreciated. I'm new to the world of Sunn, so do not assume much pertaining to my knowledge of these amps. Thanks! BTW, I've been ridiculed before for not just worrying about creating my own bass sound. I already have my own bass sound when I'm playing in my main band, but when my friends and I get together to jam out some Rush covers or I'm just playing along to a CD, it would be much more enjoyable to have his sound. Thanks again for any help!