You're in luck, I have had owned the I-5, Plinius and Nu-Vista which is very similar to the Tri-Vista. All three are very good amps. I still have the Plinius and MF and think that the Nu-Vista is the best of the three. If I had to rank them, I would put the Nu-Vista first and then the Plinius and Sim and tied for second. All three are very good amps, but the MF is more refined, detailed and richer sounding than the other two. I feel like the MF is a combination of the Plinius' open airy sound and the Sim Audio's tight rhytmic presentation.
Truthfully, I would upgrade your speakers if you got the Musical Fidelity, and would considering upgrading soon if you got either of the other two amplifiers. If you need any more advice, please feel free to email me.
Truthfully, I would upgrade your speakers if you got the Musical Fidelity, and would considering upgrading soon if you got either of the other two amplifiers. If you need any more advice, please feel free to email me.