- Home /
- Etymotic ER-4 MicroPro™ Earphones
The ER-4 require NO batteries, and can be plugged into any audio source. Their external noise exclusion (33 dB with 3-flange eartips, 41 dB with foam eartips) allows you to hear the full dynamic range of recordings without having to play them at unnaturally high and unsafe levels.
Frequency response: 20 Hz to 16 kHz ±4 dB
Acoustic polarity: + electrical = + acoustic
Transducer type: dynamic 1 kHz sensitivity (ER-4B/ER-4S): 108 dB SPL for a 1.0 volt input
Impedance (ER-4B/ER-4S): 100 Ohms nominal
Maximum output: 122 dB SPL
Maximum continuous input (ER-4B/ER-4S): 3.0 Vrms
Weight: less than 30 grams.
ER-4B (Binaural) earphones are for the binaural recording enthusiast. The ER-4B is an ideal earphone for use with material that has not been equalized for loudspeaker playback.
ER-4S (Stereo) earphones were designed to compensate for the high frequency emphasis in all CD recordings, in order to provide accurate sound reproduction. ER-4S earphones can be used with a headphone amplifier when using low power portable devices. The response of the ER-4S matches the response of most typical monitor loudspeakers.
- ER-4 MicroPro earphones
- 5 ft. cord with 3.5 mm stereo phone plug
- 1/4" stereo phone adapter plug
- Six 3-flange eartips
- 10 foam eartips
- Filter changing tool
- 4 replacement filters
- Shirt clip
- Pouch and Storage box
Recent product reviews
Review by James, N Ireland
Overall5 / 5
"Many thanks, excellent service."
(Posted on 17.09.2006 | 00:00)
Review by John, Canada
Overall5 / 5
Thanks again for your exceptional and particularly courteous service. I hope that my email reinforces your decision to have such great customer-friendly policies in place. Keep up the good work!
(Posted on 21.08.2006 | 00:00)
All items delivered to a UK address will be sent using the Royal Mail postal service, absolutely free of charge if your order is over £20. For orders under £20, shipping costs £2.95 per order. Other faster options are also available:
The free 'standard shipping' option takes between 2-4 working days from the time of dispatch, although we usually find it takes less.
All of our international orders are sent by standard mail worldwide. However, if you would like your order to be tracked, we will happily arrange for it to be sent via other recorded means. You can select the delivery option you would like at the checkout.
Please be aware that your order must be placed before 1pm to take advantage of the Next Day delivery option and this only applies to weekdays.
We hope you won't have to but sometimes it just can't be helped and you'll need to return an item. To make this as easy as possible, we have a freepost address label available to download / print at www.proporta.co.uk/returns
Alternatively you can send it back to the address below (but you'll need stamp):
Proporta - Returns Department
Unit 3 Woodingdean Business Park
Sea View Way
To check full details of our returns policy, please visit our Help and Support pages