d'après une interview de petrucci le TC2290 lui sert à décaler le son gauche et droite, d'avoir son son en stéréo :
Citation:
John: That album [Awake] was a combination of the Mark IIC+ and the Dual Rectifiers. It’s the only album
where I actually did quadruple tracking. So, when I recorded, if it was a rhythm part or figure, I played two
tracks, left and right, of the IIC+, and two tracks, left and right, of the Dual Rectifier. I still use the [TC
Electronic] 2290. I don’t use the Lexicon piece [PCM 70] anymore. I’m using all TC Electronic stuff now. With
regards to the 2290, I guess I’m just in love with it! I’ll never not have one of those in a rig. I still use that. I use
it mainly for chorusing and for a [stereo] split. I use a 7ms [delay] setting [between left and right speakers] on
pretty much every sound. [Editor’s note: This is a technique utilizing a delay setting whereby one-half of the
signal (either the entire left or right channel) is delayed by a slight amount in order to create the illusion of depth
and space between the speakers. The delay is set 100% wet with 0% feedback so that the entire signal for that
channel is delayed by the set amount with no dry (non-delayed) signal or repeats present]. I don’t really use that
[2290] for echo. Instead, I use a TC Electronic M3000 unit for all of the delays.