Bass Boost
Accuracy with an extension in the low-end.
The “extended bass” models share the same drivers as their “reference” counterparts, with a modest bass boost. That makes the IEMs sound a little warmer, while reproducing the rest of the sound frequencies precisely as recorded.
Flat Response
The most accurate earphones in the world.
The “studio reference” and “studio edition” models are tuned to reproduce the music exactly as it was recorded, without any added coloration. No added treble, no bass boost. Precisely following Etymotic’s in-house flat perceived frequency response to deliver neutral true-to-the-recording sound.
Accessories
Keep your earphones in tip top shape.