I don’t think you can get that precise sound specifically because the A4 simply isn’t that instrument.
You could get close, but it’s like me wanting my A4 to sound like a Roland Jupiter 8; I can’t do it because it just isn’t a Jupiter 8.
There’s just too many differences in the hardware configs and that Synton synth uses VCOs instead of DCOs, etc.
Now, all that being said, the A4 is a brilliant synth and I’d think you can come pretty damn close or, at the very least, get a sound that you’d like just as much with it.
It’s a very capable machine, but it sounds–for lack of a better word–newer than older model analogs.