Posted: Thu May 07, 2009 8:42 pm
thank's Mike for your detailed answers 

Mike Conway wrote:Definitely. MOD-7 actually has quite a few more options than the SY99. One of the main differences would be the SY's Segment Looping envelopes, but MOD-7 has retriggerable envelopes, which are very flexible since Lf0s, EGs and many other things can be triggers.sebbytriton wrote:Mod-7 is able to produce the full SY99 sound ?
In the SY an FM program can input an AWM program, and that AWM program can be an FM clone (only), so you can have two identical FM programs with 4 filters (dual lowpass X 2). However, MOD-7 blows that away! PCM input has 4 cross-switch points (for 4 samples), compared to the SY's one. You can have two completely different FM programs; for instance, one can be a dance type of program, but you can then feed that program into the second oscillator and add more filters and operators for further tweaking. You have 12 independent operators and 4 filters. MOD-7 filters can be bypassed, per oscillator, while SY can not.
To feed one oscillator into another, follow the instructions in SirCombatWombat's POST. It really is significant.
The SY has one main LFO (plus a limited sub-lfo), for a single oscillator program, while MOD-7 has 4 (plus a common lfo). Now add MOD-7's Step Sequencer, plus Common Step Sequencer, and the fact that all LFOs are MIDI syncable, where the SY's are not.
With added poly, superior FX section, and extra Wave Shaping parameters, MOD-7 can do much more than the SY99.
The MOD-7 can replicate the SY99, but the two are laid out so differently that it would take a while to replicate each program. MOD-7 is an uber-synth!!
BTW, I recreated my own set of TX816 combis, when beta testing MOD-7. I recently tweaked them with FX.