I haven't a clue. It just works as a midi slave. I make my riffs then pipe it out to the box. My advice is not to bother. there is nothign at all wrong with ABL. The difference is negligable and the hype about the real thing is just hype. By the time you';ve run it throughj a shitty distortion unit or overdriven desk and recorded it and eq'd it you've lost any semblnce of analogue realism you may have had and the majority of acid lines depend more on the fx than the pulse generator anyway.
The old gueard, nostalgic about the old days may call me a heretic and while they may have dozens of records out using the real box, I have been using emulators for 7 years nowand I have yet to find the ABL or phoscyon wanting in any great dimension.
I'm with DB on this one. The trade off is not worth the sacrifice in money. I say with a reasonable degree of confidence that when my tunes are good, theyre fcking great and I think the spontenaeity of my tracks would be lost if I spent half my time fcking around with hardware that never sounds the same twice.