First impression: like a good earplug for MP3 players. 3 earrings are included, size M fits perfectly. Since I have the appropriate ears. The connection cables are relatively short, just suitable for an in-ear receiver on the belt or an MP3 player on the body. There is not a lot of rest cables hanging around. Whoever uses it wire-bound will need an extension cable.
The cables are quite thin, since the durability still has to show. But apart from the cheapest airline headphones, I have not yet scrapped. Will be with me for a long time.
Test on the MP3 Player: Frequency response adjusted, the necessary bass pickup removed. Direct comparison with my previous Sony: significantly more bass, the IE4 does not need a bass boost.
Test in the studio: Nice linear frequency response, no audible difference to my Control5 monitors (loudspeakers adapted to the same audible impression) The listeners transmit the bass without bouncing, have a uniform sound in the middle range and are airy but not obtrusive.
Also good for multi-track recorder. Due to the good external attenuation, only the mix is ??transmitted, the assessment of the recorded sound is not distorted by direct sound. I can wear the in-ear earphones longer than closed headphones, which push me on the glasses and miss hot ears.
A warning to anyone who intends to use this handset on the MP3 Player: If the Bass Pickup (necessary for Open Ohps) is not switchable, the IE4 will provide a much too strong bass.
Supplement: Since 3 1/2 years in use (but not rough stage use) still without quirks. I am still very satisfied. I therefore processing from 4 to 5 stars. The cable could be longer for my uses, but then it would be too long in the original intent at the In-Ear receiver.
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