Looking for some clarification around comparison of CVP's sound quality within the same generation.

If we compare the line level output of CVP-605 vs CVP-609, do the same voices sound 100% identical?

My understanding, CVP-609 sounds on the same level as the Tyros 4, but what about CVP-605? Is it the same, or it's more like psr-s950?

I do know, that CVP-609 has more sounds in it, more SA, megavoices etc and more styles. Also, it has better acoustic, and better specs. That's not the point. I only interested in comparing identical voices (from piano to drums) through the line output.

I would really appreciate your help, as it's extremely difficult to find this kind of info regarding Clavinovas.

Many thanks