I have just finished the restoration and modification of a Musical Fidelity Trivista SACD Player for a client in Alice Springs.
This particular Musical Fidelity Trivista SACD Player was to receive an update of critical signal path and DAC electronics and involved changing many dozens of parts, including eight op-amps and what seemed like hundreds of electrolytic and ceramic capacitors!
I always pay special attention to decoupling of the power supply rails and ground returns around the DAC chips and op-amps, as well as optimising the 5703 tube output stage in this case. Getting rid of crappy 5 cent bipolar electrolytics in the signal path is a really good idea and something I always do with these Musical Fidelity designs that always seem to have them.
The result? My client was absolutely wrapped and described how his supercharged DAC performed better than new DACs costing many thousands. It should do – with that level of engineering built-in, some added attention to detail and new mil-spec parts, this SACD player will provide many more years of enjoyment.
It is worth noting that the transport section of these players will eventually fail. All Trivista SACD transports, without exception, will fail, leaving you with a VERY good DAC, but no player. I replaced the laser in this player as an experiment, with some success, but then the transport again stopped reading discs. It is difficult to ascertain what exactly has happened here with Musical Fidelity and these players, but there was without doubt a serious stuff up in the design itself, or the parts procurement phase of the design.
MF no longer supply replacement parts, they will not repair the player, they will not discuss the repair of the player and they will not tell us why the players are not repairable. This potentially leaves owners with a very expensive paperweight, unless they want to use the player as a DAC, which I certainly recommend, as it is very good even now.