“Copied from: http://www.head-fi.org/t/686039/cosmic-ears-ba4f-review I'm finding it hard to rate these, for the price I would give them 5 stars on every department. But I'd rather rate them, referenced with the idea of what the very best cIEM could be. The BA4f with the Ice Blue color Short History Before I started my journey into the cIEM...” --Marleybob217
The Flex model is designed to allow you to configure your earphones enabling you to build the perfect listening companion.
The HY2 combines a dynamic driver for lows and a balanced armature for the mids and highs. This dynamic driver also delivers an increased soundstage. The HY2 is a great sounding monitor for those looking for something a little different by combing the 2 driver technologies. Twin hybrid – 1 for lows, 1 for mids and highs Full sized medical grade hard acrylic shell Various...
“The HY3 is a three-way, three-driver hybrid custom in-ear monitor from Sweden-based Cosmic Ears. It utilizes a dynamic driver for the bass and twin balanced armature drivers for the midrange and treble, which used to be a very rare configuration, although hybrids have increased in popularity over the past year. The bass unit looks to be around 8mm in diameter and has its own sound bore. The two...” --blueangel2323
The Pure model is the fantastic entry model to our range of customs yet it still has the benefits of custom in ear monitor. The Pure fits perfectly to your ears, these high-quality headphones deliver a rich sound that off-the-shelf earbuds simply cannot match.
“ Imagine the GR07 with a better refined and slightly more prominent treble, with the bass quantity, weight, and rumble toned down slightly. With that said, I suggest bassheads to look away (why would you be looking at a TWFK in the first place?). The bass is well controlled and will show up when called for, though obviously not enough to satisfy a basshead, but is adequate for me...” --Reomero
“Build quality: 4.5/5 Thin wire, but further more everything looks tight. Sound quality: 4/5 It’s personal but this is my opinion: this IEM comes short on all fronts except bass and soundstage, from which the last is an obvious result of the use of ventilation holes in the back of the housings. The bass might even be overpresent for some (it is the Bass edition though), but the key fact for me...” --BlastAway
“I prefer the GR04 to my Visang GR02 and greatly prefer them to my Soundmagic PL50 (I don't like the PL50). This review is not going to get technical. The main purpose is to share my EQ settings which makes them sound more like my HD600 which is my reference headphone. In short: Great SQ for the money if you take 30minutes to EQ them. EQ settings: (from PlayerPro on Android OS). 0db...” --Rune3400
“ Hidden amidst an array of confusing sister models, the Vsonic GR04 Pro Flagship Edition is one of the best values in IEM's. The Pro Flagship is second only to the much acclaimed GR07 in the Vsonic lineup; however at about half the price proves a far better value. Coupling intuitive pivoting tips with a reasonable balanced sound signature, the Pro Flagship deserves far...” --thecansmancan
“ This is my first ever review so bare with me. My background in iem and headphones in general is limited. Reference iem that I own and judged against the gr06 were jvc air cushion, klipsch image s2, meelec m16 and entry level sennheisers. Soundwise they just blew away every iem I had heard until now, everything sounds better got great bass, mids and highs. ...” --executioner