“Design: The IM-04 is quiet bulky, but it is rounded off in the inner side, and with the short nozzles I have found no fitting issues whatsoever. The body is shinny with pitch black color, and a gold logo of Audio Technica. The shells are made of hard plastic, and of what kind of quality and durability is up to guesses, but I will have to go with "Japan made" and say...” --Whitigir
“This is my first review for a product so I maybe lacking details in some areas or using the wrong terms. Forgive me for that. I did buy these in Japan at a department store called Joshin so I don't have the technical details but you can find them here http://www.audio-technica.co.jp/atj/show_model.php?modelId=2305. In terms of USD I think I payed roughly $65 and they were definitely worth...” --purpledrank
“ I personally prefer the sound of the "Westone" series to the "UM" products. I use my IEM's for listening to pre-recorded music. The sound of the UM series is very good, but the WESTONE 4R is the closest I have come to the sound of my FOCAL speakers. While the sound was pleasing when using the COMPLY foam tips, the UM56 custom tips took everything up a level. ...” --psych_major
W40 Quad Driver Universal-fit In-ear Headphones Hear your music like never before with the Westone Quad-Driver W40. Featuring four balanced armature drivers and a three-way crossover network, the W40 brings you breathtaking realism and crystal clarity while maintaining superior comfort with premium, ergonomic in-ear tips. Featuring a 3-button control system with a mic, you can make and take...
New Push-Pull Technology introduces the perfect balance of a moving diaphragm that goes forward and back to reproduce pure, well-balanced sound with wide frequency. “Dual Phase Push-Pull Drivers” reproduces wide audio range Dual 13mm drivers carefully engineered provide expanded audio field and precise response Aluminum housings designed to reduce unwanted resonance for crisp...
6-driver balanced armature with passive 3-way crossover, acrylic body with Flex Canal (to ensure maximum comfort and sound quality, the body can also be re-molded if necessary), dual bore, MMCX connector type, 118 dB @ 1mW sensitivity, 8 Hz - 20 kHz freq. response, 46 Ohms nominal impedance, 25 dB passive noise attenuation
“To keep it short..try him with a cowon d2., another neutral sounding source..u will be surprised how it sounds” --hifimanrookie
“This IEM is vocal oriented and so they are especially for vocal lovers. It is clean, detailed and upfront. This is not a basshead IEM instead it is punchy, detailed maybe a little slow on some really fast tracks but generally it is quite involving and fast. There is no midbass bloat I could hear so there is no veil in the mids. The guitars especially sound amazing on these...” --ozkan
“Bass response doesn't bleed to the vocals or any other frequencies whatsoever, lightweight cable with no microphonics and a narrow plug to connect to portable devices. The Westone has a powerful, detailed and clear sound that does not under or overemphasize anything. A polite sound as another writer described with a mid-bass bump and upper treble elevation without been...” --squallkiercosa
“ Westone ES5 Disclaimer: This review is just a reflection of my opinions and experience. Specifications: Sensitivity: 120 dB SPL/mW Frequency response: 8 Hz - 20 kHz Impedance: 20 ohm Speaker Technology: Five balanced armature drivers with a passive three-way crossover Features : Replaceable cable, one year parts and labor warranty on internal components, 25 dB...” --Tronz