I am using the Delta 1010lt card right now (just one) with a Yamaha RM800 mixer. This is a true inline mixer with 8 buss which will allow me to record 10 tracks at a time and mix 8 analog tracks at a time. I am planning on getting another 1010lt so I can do double that but I have no need to go 32. However, if I did, I would go 2 1010lt's and this board would handle it. The down side is that Yamaha only made the board for a year because they could not compete with the cheaper Mackie boards, even though they did not have the same features as the Yamaha. The upside is that if you can find one used, they are fairly cheap. The 16 channel versions go for about $300 on ebay and the 24 are around $500. I picked mine up for $200 but I got a hell of a deal.
I don't know if that helps you at all. But it is all I know about it.