Mesa 2x12 cabs - 3/4 back vs. closed back Recto

[iced_earth]

Anyone know the tonal differences between the Mesa Boogie tuned 3/4 back 2x12 cabs with C90s and the Rectifier closed back 2x12 cabs with V30s?

Also, what are retail prices/used prices for them?

Thanks [img]/images/graemlins/band.gif[/img]

-Mike