KZ S1 and S1D - Where is the one that is just right?

Just a quick chat on the KZ TWS pair S1 and S1D. Another attempt by KZ to find a footing in the TWS market. Personally I think they should go with their core knowledge and tune them like the ZSN. 1DD/1BA hybrids have been used by KZ for a long time so I thought it would have a more familiar KZ sound. Maybe the Z1 will go that route.

Thank you to the Yinyoo Audio Store on Amazon for sending both models. Get more info here: