Brand new in their box for sale I have:
• 2x Avid MTRX Pristine 8 Mic & Line In Card - £1800 (bargain!!!)
https://www.ebay.co.uk/itm/233485570260?ssPageName=STRK:MESELX:IT&_trksid=p39 84.m1555.l2649
• One MTRX SPQ Card. - £1800
https://www.ebay.co.uk/itm/233485576672?ssPageName=STRK:MESELX:IT&_trksid=p39 84.m1555.l2649\
These prices include the eBay 10% commission.
If anyone is in London, I'd be more than happy to bring the card over for inspection and test with your unit and remove £100 off the price.