I asked Hiby seller in China about the differences between regular R5 and Saber ver. Here what they replied (after direct translation): Compared with the original version, the R5 Saber version has replaced two professional audio packages OPA1642 (original OPA1612), and the sound tuning...

My very first post here. My Fiil T1XS just arrived. First impression, the sound is great on them (I not an audiophile or audio enthusiast). Instruments and vocals sound very clean, bass can be thumpy and rumbly. I dont have T1 to compare. Ambient sound mode is good but can sound artificial at...