B&W 805 D4 vs 705 D3 Signature

The latest vs the not-so-new. I had the 805 D4 and loved them. They were replaced by the 805 D4 Signatures which have a different tonal balance that required replacing my silver phono cables with copper cables.

I’m entertaining the idea of going back to the non-signature 805 D4s, or maybe the 705 Sigs. So, how does the sound of the 805 D4 compare to 705 S3 Signature? (typo in title)