Synopsis: The Future Sonics MG6Pro Ear Monitor is an excellent sounding custom earphone tuned for a supremely natural sound. The overall sound is very smooth, extended in bass and treble, and very well balanced by the clear midrange. The excellent reproduction of vocal and instrumental timbre, combined with superior soundstage and sense of stereo imagining are also standouts. Using a single dynamic driver which can cover the entire frequency spectrum without the need for crossovers gives the MG6PRO Ear Monitor a coherency which adds to the naturalness of its presentation. The bass deserves special mention for its control and its effortless extension down to the sub-bass frequencies. Additionally, the 13mm dynamic driver can move the air against our ears in a way balanced armatures cannot—this leads to better bass energy as we “feel” bass as much as we hear it. The amount of bass can also be adjusted to anyone’s taste by a changeable system of vents which allow the driver more or less airflow.
The Sound: The head audio engineer for the Country Music Awards told me (yes, I emailed him and asked what he thought) that Future Sonics Ear Monitors offered “true reference quality sound”, in his opinion. I’m not a professional audio engineer, but I can definitely hear where he’s coming from.
The overall sound signature is natural, balanced and engaging.
What natural means to me is that the MG6Pro doesn’t sound colored or boosted to me anywhere in its frequency range. It also refers to the superior timbre—that hard to define but easy to recognize ability to convey the true-to-life sound of all the richness and subtle resonance of an instrument such as the human voice or a violin. I think that these qualities are part of what the senior audio engineer I politely pestered was talking about.
Balanced means to me that I don’t hear a certain frequency range coming ahead of any other, generally speaking. With the LFVs, this can change a little according to one’s taste, as I’ll mention below. Other earphones may be tuned with a very forward midrange, or a boosted extra-bright treble or a mid-bass hump to give beats extra bounce—the MG6Pro has none of these, to my ears. I think people who want a colored (“fun”) sound won’t necessarily find that the MG6Pro is for them. It’s just a matter of knowing what kind of sound you are looking for and matching your preference to the earphone you buy.
Mid-range: The mids of the MG6Pro really let the music sing without getting in the way. Whenever I try to describe them, I try listening to some music…and end up listening and listening… So, I think I can say first that they are not recessed, nor are they overly forward. It’s not a thin-sounding earphone by any stretch, but notes aren’t overly thick nor does the decay overstay its welcome. They are quite well-detailed, but not artificially analytical. I think you can see why I keep coming back to natural and balanced as descriptions.
In Conclusion: I think these custom in-ear monitors have a lot to recommend them for professional or audiophile use. They certainly deserve more attention from audiophiles as they have a high quality sound with excellent customer service. The MG6Pro reproduces music in a realistic and natural-sounding way that puts even much more expensive custom earphones to shame in direct comparison. The way they can be upgraded to the next generation driver for a fraction of the cost of a new custom, their durability and ease of repair and the way the bass quantity can be adjusted make them a very strong choice. Certainly those who come from dynamic driver earphones or headphones should think about the MG6Pro Ear Monitor, as well as those wanting a balanced, natural sound at every part of the frequency range. Those who like a very bright or a colored sound or if isolation is more important than sound quality might wish to look at other options.