Vented vs Folded Voigt Enclosure

Thanks GM. I have a pair of Electro-Voice 12Trxb that I pair with an Alan Eaton tube amp, this is a great combo. I would love to put them in a bigger box to get a little more and tighter bass. I am very familiar with the ATC SCM19 sound. Which of these 2 enclosures would bring me closer to the ATC's?

I'm inspired by this: