Integrated Amp Curiosity

@oldaudiophile 

I own the Musical Fidelity M6si integrated amplifier and am genuinely surprised by how good it sounds—I’m very happy with my decision. The M6si delivers excellent performance, facilities, and power. According to Musical Fidelity, “Internally, the M6si is configured as two independent monobloc power amps with a separate preamp. It is, in fact, a preamp with two monobloc power amps that just happen to share the same casework. The M6si has 220 watts per channel, very low distortion, outstanding noise ratio, and an extremely flat frequency response”.

My speakers are the PMC Twenty5.21 (the smaller version), and the M6si drives them perfectly. The combination of high power, high current, and stability means the M6si can drive virtually any loudspeaker with ease. In my system, the Musical Fidelity M6si integrated amp is a great fit for my PMC speakers, and I hope this helps you considering a similar setup.

That one keeps haunting me and making me wonder if I would have purchased it, instead, had heard it before buying the one I did

true for 3 of the last 12 amps I tried. 

Also, I can speak for the Simaudio and Musical Fidelity. I think the MF drives almost anything. Very robust and reliable. Simaudio is hard to match, but can be spectacular with the right components.  

@oldaudiophile 

Click on Upscale Audio M6Si amp review

Scroll down several pages for Kevin’s video review.  

Thanks, folks!  The MF and Simaudio are, indeed, absolutely wonderful!  The time I spent with the MF was with a pair of Paradigm (forget model number but somewhere around 4K or 5K retail at the time), the same Marantz CD player I have but currently using as a transport and an outstanding Marantz TT-15S1 turntable.

The Simaudio I spent time with involved the same CD player, a pair of Martin Logan Motion 60XTi and then a pair of GoldenEar Triton 2.

Gano, when you say the Simaudio is "hard to match" what do you mean, exactly?  That puppy has such a massive current supply, it had no difficulty driving the ML to their fullest capabilities.  However, I was wondering how well it would do with speakers that live in the 4 Ohm zone most of the time.  Even though the ML are rated as a 4 Ohm design, some reviewers think it's really a 6 Ohm speaker.

@oldaudiophile I heard the 340i with 3 different speakers, with B&W, they sounded almost unbearable to my ears.  With ATC, they sounded good, and with Dynaudio Contours they sounded fantastic. But it's subjective of course...

I'm a big fan of Anthony Michaelson whom created Musical Fidelity. Now the Chinks own it, but much of the gear was being made in China anyway.

For me reliabilty is very high on my list and MF will always deliver.

They are a very underated company.

I have the older Musical Fidelity M6i500 (which is the older version of the M6si500. It’s a beast and I would not part with it. I am a huge fan of both integrated amps and the brand Musical Fidelity (now owned by Audio Tuning). The Nu Vista amps are very, very good IMO.

@2psyop 

Respect. Nu Vista amps are excellent. Stock up on tubes!