I have the ML 35 and use a ML 31 transport. Hard to beat this transport for 44.1. Previously had a Wadia 8 and the ML 31 is in a diferent league in all areas. Also the 31 transport has worked flawlessly for over 8 years of regular use. The Illuminati Orchid is the best digital cable with this combo IMO. Haven't heard the 31.5 transport.