The Venus boards had some ... quality issues is what I understand.
USB 2 can do 16 in/out tho that drops, I image, w/ higher rates. Lynx's pcie or USB are a good bet in your price range. Their 8x8 was going for $2000 w/ usb. PCIe 16 AES card is $700. ADAT X2 is $250.
For $2000 you can get the UAD w/ effects. FW 800 - thunderbolt additional.
There are RME for that much - good stuff too.
Finally, you could get a TC Konnekt 48 for $1000 and add an analog board. 12 in, 10 out and lots of digital connectivety too.
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