Designed originally for hi-end home audio, the X7 is one of the first devices to utilize the original ESS ES9018S in portable audio. Its 8 output channels can be bridged 4-a-side for an astonishing 135dB S/N ratio and dynamic range, while THD is as low as -120dB. Compared to the ES9018K2M popularly used in portable devices, the original ES9018S features 6dB higher SNR and dynamic range at the cost of higher power consumption, a cost that the X7 is willing to pay with its robust power section.
The X7 utilizes a full multitouch screen for operate. when it comes to music players, larger isn’t always bett-extensive comparison with other music players, we settled on width of 64mm, which is a comfortable middle size between 58.6mm (iPhone5) and 67mm (iPhone6) that is very suitablelor one-handed operation. Given the unavoidable thickness of the X7 from having a flagshib-class DAC, amp and a battery to match, making the X7 comfortably handholdable from a thickness point of view is also a significant challenge. The X7 is carefully bevelled at the edges and also has a stepped design at the back, which has proven to be a comfortable hold in user testing.