The effect of ear sleeves: The most comprehensive comparison yet with Phonak PFE-022

This is the result of yet another collective effort, and the final analysis of our first measurement phase. A lot of ear sleeves borrowed from various users have been used here. A credit goes to Inks, Joker, Anaxilus, and JupiterKnight! I really appreciate for providing such a generous opportunity, guys.

Phonak PFE-022 equipped with various thin calibered sleeves:

  

Silicone sleeves

Foam sleeves

Phonak PFE-022 & Monster ear sleeve adapter equipped with various thick calibered sleeves:

Silicone sleeves

Foam sleeves