Phonak PFE 232 {Dual Driver}

[dfkt]

Midrange isn't as weighty as the SM3, but not as lean as the single driver PFE as well. Solid middle ground, quantity-wise. Instrument separation and detail in the midrange is truly excellent.

Treble is very sparkly and has realistic texture and timbre, a noticeable improvement over the already very good older PFE. Not fatiguing or sibilant, as you said.