Diaphragm: 16 mm., mylar
Nominal impedance: 32-ohm
Nominal power input: 2 mW
Maximum power input: 5 mW
Nominal sensitivity @ 1 KHz: 113 dB/1 mW
Frequency range: 20-20000 Hz
Enclosure type: semi-open earbuds

The X50 are OVC’s more expensive, higher-quality earbuds. OVC was the Chinese OEM for many Western companies (Koss, Siemens, AT&T, Panasonic, LG, Samsung, Audio-Technica, Plantronics, Yamaha, V-Moda, etc. etc.); there’s an English website for OVC, http://www.ocvaco.com/, with a bit more background on just what OVC is.

Long story short, X50 are close to Yuin PK3 in price and performance. About 75% of the performance at 75% the price. Not as exciting or magical as the PK3, but with a larger soundstage and a bit more power to the sound (this is probably as powerful and “solid” as earbuds can get).

Sick and tired of fakes?

It’s sad that there are so many fakes flooding the market now. Every time I see a good bargain or deal, I can’t help but ask the question: are they real? Well, with a trusted merchant like earphonesolutions.com you don’t have to worry about all that nonsense. You know when you buy form them; you’re getting the real thing. Sure the prices might be at the regular retail price, but at the moment earphonesolutions are having a few coupon deals, so you can now save yourself a bit of money. It’s worth paying extra for the knowledge that what you’ve bought is the genuine and the sound you’re hearing is genuine.

Complete with EQ recommendations, tips for taking care of tips, and even a music video for good measure.

…is here.

Note: VSonic VS-R02 have been discontinued, VSonic R-02 Pro is the new 2008 model.