Summary: After trying player after player to include the 602 I have come to realize this was the perfect match for me.
I too use the UM3X, but also Grado 325i's, K702's (300ohm) and Senn IE6's. This player just wants to push them all. Aside from the 35 presets The EQ settings are ENDLESS!
Pros: Storage, a palette of EQ settings, ease of navigation
Summary: Fairly new to mp3 players, tried the Ipod Nano 6th Gen. Never would shuffle worth a damn.
Same 150 songs over and over. Researched this J3 here and purchased it. Followed ALL instructions as to installing the newest `firmware' using my Mac.
Summary: My best Pmp so far.
I have tried sony's, sans'a, and cowon j3 is the best so far.
Unfortunately I lost it, and now it is discontinued so I have been trying to replace it, I bought a Sony Walkman A 865 which was sent back due to the poor battery and poor Eq, after that I bought a Cowon Z2 basically...
Pros: Battery Life, sound quality, audio formats, simple to use
Cons: Does not support many videos formats, blue-tooth not that good.
Summary: The short and simple of it is this is the best DAP for the price I have owned. I have used all the main stream players, (IPods, Zune, Creative Zen Player, etc) and I will never go back. Besides the great audio quality, the battery life is unparalleled.
Pros: Extreme Battery Life, BBE & Jet Audio Effects, EQ, Lightweight, Superior Audio Quality, Supports Most Formats
Cons: Screen resolution, Navigation has a learning curve
Summary: For most people, Cowon J3 is pretty much the ultimate 'non-audiophile' music player for its sound quality, battery life, and expandable storage (I've heard of 64gb micro sd cards working on it, I haven't tried myself yet).
Pros: Sound quality, expandable storage, zero hissing, BBE, battery life
Cons: Proprietary cable, difficult to create playlist, still pricey online after many years.
Summary: Background: When I lost my S9, I had to find a replacement. I began to look for options, noting the Cowon J3, Nationite S:flo2, and Hifiman HM-601 as possible options. Then I discounted the Hifiman for the sake of portability.
Pros: Sound Quality, BBE EQ, Battery Life, Durability, Buttons, Usability, Drag&Drop, MicroSD Slot, Screen, Powerful and Clean HO (works well as a LO)
Summary: After my Creative Vision: M (60gb) broke in the Fall of 2010, I was considering getting an iPod to replace it. Thankfully, my brother directed me to this.
Upon receiving the item, I was immediately overcome by how gorgeous the J3 is.
Pros: Amazing sound quality, great range of file support, gorgeous look, clever interface, regular firmware updates, no software (e.g. iTunes) required
Summary: I love having something no one else has, that’s how I live my life making my own path. At least that’s how I feel when someone gawks at my J3. Every third person on earth has an IPOD, nothing to talk about, no fun, typical, average, yawn. Now the J3 is a special player in every aspect.
Pros: style, size, battery life, SD card slot, Touch Screen, Power and Sound
Cons: propriatary usb cable, just like everything else.