Audio-Technica ATH-E40 Professional In-Ear Monitor Headphones
The ATH-E40 is the first step in Audio-Technica's E Series in-ear monitors: a dual phase push-pull driver design in a housing shaped for isolation, aimed at a performer who needs to hear a mix on a loud stage instead of fighting a wedge. Four sizes of silicone eartip ship in the box, and the fit is what determines how much of the stage you actually shut out.
Response runs 20 - 20,000 Hz into 12 ohms. The cable is detachable and terminates in A2DC connectors at the earpieces, so the cable - the part that always fails first on an IEM - is a spare rather than a repair. It ships with a carrying case and a 1/4" adapter.
| Type | Dynamic |
|---|---|
| Frequency Response | 20 - 20,000 Hz |
| Sensitivity | 107 dB/mW |
| Impedance | 12 ohms |
| Weight | 10 g (0.3 oz), without cable |
| Cable | Detachable 1.6 m (5.2') with A2DC connectors |
| Accessories Included | Carrying case, silicone eartips (XS/S/M/L), 6.3 mm (1/4") adapter |








