I used those mics as a reference because their reported impedance is lower than a lot of them.

"Rated impedance is 150Ω (310Ω actual) for connection to microphone inputs rated low impedance"

The others probably appear louder and clearer when higher because that is the impedance they expect.
Starving a mic is different than giving it too much, so the two mics you used and the two mics I mentioned would likely show different results to the ear.

So many SM-57 and 58's out there still in use, but many interfaces do not have a way to adjust for them.
I have a separate preamp that works just fine, and if I insert it before the interface it's fine. But having an interface that did it in the first place is a nice feature.
That said, my Preamp also offers the additive tube feature .. so works a treat on other stuff as well.

If that ART has an 'instrument' in switch, may be fun to se what your guitar or bass sounds like through it.


I do not work here, but the benefits are still awesome
Make your sound your own!