Dynaudio c4 signature & c4 platinum difference

Hi there ! I'm considering a used c4 signature over a brand new c4 platinum with a savings of $5k difference. Are they identical in terms of crossover design , woofer and tweeter as well ?

Any thoughts or experience is highly appreciated.

The integrated amp to drive is Musical Fidelity Nu Vista 800 and a Naim Network Player.
Ricred1 - Actually the C4 MKII is the best value but the signatures have a nicer finish. MKII/Signture/Platinum all sound identical. MKII came with a 5 yr warranty and the Sig's came with a 10 yr warranty but not sure about the Platinum.

Mechans - That tall pillar is the cabinet. They put drivers that are larger that the cabinet can accommodate. My C1's had a 6.9" driver in a cabinet that is only 5" wide.

Many Thanks everyone.

I have decided to go for the c4 signature and saved $5k and it was so nice
with my NUVISTA 800 for my Living Area.
I am so happy with the used c4 signature I got which Im listening now for 5 days in my Living Area. The Mids is silky smooth and the bass is deep and tuneful highs are extended with finesse.

Furthermore the Mocca Gloss finish fits well with my interior and the height of c4 is just right for my living area which has a ceiling height of 20 feet which makes the speaker breath effortless.