Customs ED2 7MM pairs using magnetic pronunciation unit, the original prototype of the structure and ie800 same pronunciation unit, and actor-tone multi-baffle design guide sounds completely rut. Highlight is the use of the diaphragm and the diaphragm same paragraph suppliers. Locked to the frequency range 6-31KHZ, using specialized equipment can be potentially more easily obtained bass response. ED2 comes standard with a wire imported from Japan fever LC-OFC 4 sets, line signal conductivity of not less than Furukawa silver wire. And the use of professional-grade headphone plug with four balanced design. So far, do not see the international brand products in the $ 1,000 line of such a standard. ED2 extremely sensitive and detailed information about the performance of the dynamic response function, built-in high sensitivity magnetic 7MM double pronunciation unit, if not particularly bad equipment can easily be pulled out of superior quality performance