Westone triple balanced armature driver 3-way passive crossover custom. 1 High, 1 Mid, and 1 Low drivers.
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
“ Disclaimer I bought these about 3 years ago, used them a lot and got to "know" them well. The (sort of a) good thing is: They still perform as good as they did when I first tried them on. But that was not too good. Back then I felt disenchanted: they somehow sounded unimpressive, which left me confused. I mean, I based my decision to buy the most expensive earphones I had ever owned solely...” --Checkbox G
“To keep it short..try him with a cowon d2., another neutral sounding source..u will be surprised how it sounds” --hifimanrookie
“ 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
“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
“ Well, this has been quite the turn of events! I had auditioned a full-sized Monster headphone, which I felt rather negative about, but the Turbine Pro Gold (TPG from here on) caught me quite off guard. Overall, the TPGs are excellent sounding, have superior build quality to many earbuds and IEMs I’ve owned/seen and offer a wide array of tips for fitted comfort, so let’s explore what makes...” --Landis
“Review of the Westone UMPro50 + iFi iDSD Nano Pairing Intro I hereby declare that the review as it is , is honest and unbiased . In Ear Monitor Westone UM Pro 50 Signature Series [S$999] - 5 Balanced Armature - 3 Way Crossover - Westone’s Stock Cables & Tips - Designed and Made in USA Digital Analogue Converter AMR iFi iDSD Nano [S$250] - Burr Brown Texas Instrument...” --potatoe94
Adventure Series is the culmination of two decades of experience with audio and in-ear monitors. Designed for active users, ADV creates a new category of cross-over earphones that can be enjoyed in any environment. Westone's Adventure Series offers an Active Fit System with Up and Over cable routing and patented Star Tips to ensure superior fit, comfort, and retention. The Adventure Series...
“ 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