I am stunned that Musical Fidelity are not helping here -- does a hi-end company imagine people will pay their exotic prices only to be left hanging later due to 'parts obsolesence'? And this from a company that sold their Nuvista tube idea on the idea it had a matching spare for every customer? Someone ask all those MF lovers at Stereophile what they would suggest......perhaps Sam Tellig can ring his friend at the company for some help........If MF had gone out of business that would be one sad end, but given the fact they are alive and well, apparently working with their UK customers to resolve this, and still receiving more coverage in certain US media than would seem explicable on normal review submissions alone, suggests they might be responsive....