The perception often varies due to many factors: music genre, personal preference, and the equipment in the audio chain (cable, IEMS). In my opinion, the SP3000 sounds fuller than the SP2000 when used with my cable and IEMS, creating a more natural sound to my ears. However, when paired with other IEMS such as Tia Forte or FW10000, the combo tends to produce a brighter sound, which is attributed to the characteristics of the IEMS.This is just bla bla bla, this forum is like a circule is redundant , things are great then not so great and then are almost bad, i think that some people are losing the sense of what is good or bad sound, or losing their hearing, i have the sp3000ss black and is not thin or lacking power ,is a natural , the mids are great and the stage is with some songs mindblowing, together with my previous 1zm2 (that some psychics in this forum now says that the 1z og is better....the lie of the year) are the best players i heard, period.
I have compared the 1z and 1zm2. The tuning of the 1zm2 seems too thick and unnatural, while it offers a quite large soundstage but not a significant upgrade from the previous version. Although it uses open Android with the latest version and Google Play services, which is a promising sign, the hardware is too slow to handle the operating system and the services are not clean up, like some Chinese brands, which affects the performance.