The oscillators of the first edition were not antialiased, however pitch modulation could be locked to a user-set scale which could produce transposing, tempo-synced arpeggios. The second version used BLIT oscillators, which are antialiased.
While the second version still has up to 16x oversampling, cross-modulation is performed using the output of the BLIT table, which means that the output still differs from analog oscillators. The pitch scaling was removed and an assignable filter was added into the cross-modulation architecture. The functionality of the LFO was dramatically improved.
Perfecto2 is one of my most commonly used synths. The single envelope and LFO are limitations that indicate an upgrade is due at some point.
Developer : xoxos
Download : Perfecto2