Etymotic Research ER4S earphones are designed to compensate for the high frequency emphasis in recordings. Performing musicians often use them because the response matches that of most monitor loudspeakers. Popular with musicians, recording engineers and audiophiles, ER4S can be used with a headphone amplifier if desired. Included with every pair of ER4S in ear monitors is an industry-exclusive channel matching compliance graph signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers. Every pair of ER4S earphones is assembled and tuned in the United States.
Item Includes
- Etymotic Research ER4S
- 5′ Cable
- 1/4″ Stereo Phone Adapter
- 6 x 3-Flange Eartips
- 10 x Foam Eartips
- Filter Changing Tool
- 4 x Replacement Filters
- Shirt Clip
- Carrying Pouch
- Storage Box
High performance balanced armature drivers are precision matched to within 1 dB
Designed to compensate for the high frequency emphasis in recordings.
Popular with musicians, recording engineers and audiophiles, ER4S can be used with a headphone amplifier if desired.
Braided cables for reduced microphonic effect
2 year manufacturer’s warranty provided for products purchased from authorized resellers
Type: Balanced Armature Stereo Earphones
Frequency Range: 20 Hz to 16 kHz
Impedance: 100 Ohms
Sensitivity: 108 dB/mW
Maximum Input Power: 3.0 Vrms (Continuous)
Connectors: 3.5 mm Stereo Mini Plug with 1/4″ Adapter
Cable Length: 5′ (1.5 m)
Weight: 1 oz (28 g)
