It's an Artstar from the early '90s I guess. Maybe it's a '89. Model name is AB200, from the Artstar serie. It's a really high quality built instrument and I have never seen one before.
On the net I was able only to find this:
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It's all maple, made in Japan with a fully adjustable bridge. Really peculiar neck which they call as you see super wood, it a multilaminate neck ( a la kubicki).
Sound is really full and warm, with accuracy. Balance is more than decent ( it's always a semi hollow bass...)
Glad you like my not so famous Ibanez!