In the September, 1974 issue of Guitar Player he said his first bass with Crimson was a Jazz bass "... which in his estimate is one of the best basses in existence". It goes on to say he tried a Gibson which he found to be "too inaccurate" and a Rick ("too difficult to play because the neck, he claims, actually 'moved four inches' in either direction'".
Later the article talks about his then brand new Ripper and its intonation, balance across all four strings, and versatile electronics. He says he was using a rig like "a huge hi-fi system" consisting of Crown DC-1000 (power amps), a separate unspecified EQ circuit, and un-named cainets loaded with JBL speakers and Lansing horns- crossed over at 400 Hz.
I'm glad I still have my copy of the GP book "Rock Guitarists", a collection of reprinted interviews from between '67 and '74. Lottsa stuff, even if it's quite dated, including Bo Bogle, Stu Cook, Glenn Cornick, Rod Ellicott, Jim Fielder, Andy Kulberg, Lake, Felix Pappilardi, Chris Squire, and Martin Turner. As a sign of the times (the book was published in 1974), even though they have bits on Jack Bruce, Jack Casady, Chris Hillman, and John Entwistle, they're not listed in the table of contents because the feature article was of the whole band (Cream, Jefferson Airplane, The Who)- while the guitarist Clapton, McGuinn, and Townshend are...
John