S3/5 and S3/5se are not the same speaker once you hear those. The S3/5se yields more resolution and a bit brighter side of the phases of the music. The S3/5se places itself on the side of 'standard hifi'. So it is your taste and, certainly, your system comes in heavily when you decide which one to choose.
I chose S3/5 because it produces classic/jazz vocal and solo violin/cello so well, the best I'd say. The S3/5 does very good job for chamber music as well. Since I have B&W matrix already, S3/5 over S3/5se was rather easy choice.
So the choice depends on what music you mostly hear. For instance, if you like to hear orchestral music, which is not very good idea with either S3/5 nor S3/5se, I'd suggest S3/5se. But, if not, you know.
Hope it helps.
I chose S3/5 because it produces classic/jazz vocal and solo violin/cello so well, the best I'd say. The S3/5 does very good job for chamber music as well. Since I have B&W matrix already, S3/5 over S3/5se was rather easy choice.
So the choice depends on what music you mostly hear. For instance, if you like to hear orchestral music, which is not very good idea with either S3/5 nor S3/5se, I'd suggest S3/5se. But, if not, you know.
Hope it helps.