INTRODUCTION

   While obviously most people use their smartphones to listen to music regardless of where they are at there are always those demanding users who want better audio quality and this is where music players with their high-performance DACs come in. Unlike however the "basic" low-cost MP3/MP4 music players we used to see in the market 5 plus years ago (there are actually even more such models today in the market primarily aimed towards non-demanding consumers) most of the new Hi-Res Audio models share many interesting features with today’s smartphones such as touch screens, processors, RAM, wireless connectivity and even operating systems (Android). FiiO is among the most popular music player manufacturers in the market currently and after testing their "entry-level" yet quite interesting M3K model today with us we have their "mid-end" M7 Portable High Resolution Music Player.

   FiiO was established in 2007 and has experience in researching and developing countless portable music products of different types, and sell FiiO-branded products through sales agents worldwide. The brand name FiiO is composed of Fi (fidelity from HiFi) and iO (number 1&0), representing the real feeling and convenient life that digital brings to life. Meanwhile, the Chinese “??” is the transliteration of FiiO, indicating the positive and innovative spirit as thriving as spring. FiiO designs, produces and sells high-quality products at favorable prices to those who love music and style; our high-resolution digital audio players, portable headphone amplifiers, DACs and earphones have all received praise from the majority of users. Several products from FiiO have created record sales in their respective product segments and have received countless awards including iF Design Award, Reddot Award, EISA Award, VGP Award, etc. FiiO places great importance on users' needs and ceaselessly pursues perfection in product design and manufacturing, to supply users with the best audio products at the best prices. FiiO is focused on product quality, adheres strictly to ISO9001 standards in quality management and works hard to attain the lowest repair-related product returns rate.

   For the brand new M7 Portable High Resolution Music Player (currently available in black, silver, red and blue colors) FiiO paired the latest Exynos 7270 processor (Cortex A53 Dual-Core 1GHz 64-bit CPU with Mali T720 MP1 graphics and integrated memory and power management IC) by Samsung with the Sabre 9018Q2C Reference DAC (32-bit HyperStream architecture with Time Domain Jitter Eliminator, 2-channel audio D/A converter, headphone amplifier) by ESS (can deliver a DNR of up to 121dB, THD+N of –115dB and can handle up to 32-bit 384kHz PCM data), the Si4705 FM Radio Receiver (64-108MHz worldwide FM band support with automatic frequency and gain control) by Silicon Labs and 768MB LPDDR3 RAM. The M7 also features a 3.2 inch LCD touch-screen (480x800p resolution / 292ppi), support for 192KHz/24bit PCM audio (for most audio file formats including APE/WAV/FLAC/WMA/OGG/ACC/ALAC/MP3), 2GB of internal storage, micro SD card slot (for cards up to 512GB in capacity), Bluetooth v4.2 connectivity (via the Exynos SoC with support for apt-HD and LDAC), 1880mAh lithium-ion rechargeable battery pack which can power the device for up to 20 continuous hours (30 hours via Bluetooth) and a modified version of the Android OS (v5.1).