“The Korea based T-PEOS surprised the IEM world with their hybrid IEM a few years ago and still continues to push for more innovative design. The RICH200 is meant to be a step up from the company’s first dynamic model D-200, but keeping the same high value-for-money factor. Spec Transducer: 8mm Dynamic Power: 3mW / 30mW (normal / max) Impedance: 32 ohm @ 1kHz Sensitivity: 102dB @...” --ClieOS
“The Korea based T-PEOS surprised the IEM world with their hybrid IEM a few years ago and still continues to push for more innovative design. As the name suggested, the H-100J is related to T-PEOS’s original flagship hybrid, the T-100. However, the T-100J isn’t meant to be a continuance but rather a rebalance, in order to appeal to those who do not like the V-shaped sound of the original...” --ClieOS
“PROS - great sounding headphone - great in-ear fit - good quality cable - unobtrusive design CONS - slightly heavy bass for me NOTES Equal length cable for each ear (not for wearing behind the neck) ” --gingerbeardman
“I bought these on ebay.co.uk for £10.99 which is about $18 US or €13. They are a discontinued product, hence the low price, and bought from a retailer called "uk**seller". These are genuine Sennheiser products in sealed retail package, nicely made of good materials and fully up to the usual Sennheiser standards of presentation. goldenears.net has tested the CX 280 (same IEM but with inline...” --julian67
“I don't have any headphones to compare them to, as these are some of my first good quality headphones. They sound great, they're pretty comfortable, if you wear them around the house, or just walking around, they stay nicely in your ear, however if you do something that makes you sweat, they don't stay in your ear well. I'm guessing this can be fixed with custom tips, but I never bought any....” --RyanDN
“The build quality of these earphones are perfect: from the very first time you hold a pair of these in your hands you know that they won't fall apart any time soon. But this build quality leads to some issues: the housing is pretty heavy and this can make the use of these clip-on styled headphones pretty uncomfortable for some people. Noise canceling isn't really good but keep in mind that this...” --Maniello
Friendly to any genre, easy on the ears. The D-200 series by T-PEOS boasts of lightweight cables that are flat and thin for optimal comfort. For extra convenience, there's also a click button mic to pick up your calls with, or to play and pause your music. There's a look for everyone.
“The IE800 are the best IEMs I have ever tried. This includes the Shure SE846 & 535, Audeo PFE232, AKG 3003, JH13 and JH16 and many others. I also prefer their sound to many full size cans like the beyerdynamic DT-880, T70, T90; Sennheiser Momentum, HD650; Shure SRH1840 etc. The closest I've heard to the amazingly balanced sound of the IE800 is the LCD-2 rev 2, which I also own. The...” --scoyig
“ I must admit It's been quite a journey with the company T-PEOS since I tried their H-100 going way back to October - 2012. Since then I've heard most of T-PEOS mid tier line up including H-200 hybrid released around March - 2013 which grabbed quite the attention on Head-Fi and probably for good reason as it scored notably high in some reviews other than mine. I...” --H20Fidelity
The Sennheiser MX 660 earbuds are high quality earphones with Sennheiser's innovative "Basswind" system for superior, bass-driven stereo sound experience. They are ideal for use with all MP3, CD, DVD players and portable gaming systems as well as feature a volume control integrated in the cable and a cable winder for convenient cable length adjustment.