If you absolutely need that filter sweep sound, you can always run
the AN1X through a moogerfooger filter pedal.The moog filter sound is
very distinctive. The An1X was modeled after the Prophet 5, a nice
poly synth with a different filter sound than the Moog.
I miss the pulse width modulation sound on the old Siel. Yes, the
AN1X does this, but it doesn't sound the same. Mind you, it's about
the only thing I miss about the Siel.
Rainbow Jimmy
http://www.spaceanimals.comhttp://www.mp3.com/spaceanimals