Comparison.
In every comparison I used Aroma Jewel and Oriolus Traillii, volume matched while listening to the same test tracks between DAPs. Also, in this comparison I mostly focusing on the difference in sound as I hear it.
SP3k vs SP2k – Both have a similar holographic imaging with 3D positioning of instruments and vocals in space, but there is a difference in how the soundstage is presented between these two DAPs. SP2k has a wide soundstage, but its presentation is in front of you. SP3k soundstage surrounds you, goes even wider and wraps around you, making you feel like you are right in the middle of the “sound” instead of the “sound” being in front of you.
SP3k background is blacker relative to SP2k, even when I use 3.5mm/2.5mm adapter w/SP2k. You have to listen very closely, focusing on macro and micro dynamics of the tracks to hear the difference and appreciate the improvement. It is not night and day, and you do need a good pair of resolving IEMs/headphones to spot the difference, but it is there. And it becomes more apparent when you enable DAR on SP3k which to my ears improves the vertical dynamics.
Relative to a difference in tonality, they are not too far off, but I do hear SP3k with a little fuller body sound in lower mids, giving the sound more musicality in mid frequencies. But I still think that you will find a bigger difference in technical performance between these two DAPs rather than tonality.
Other obvious changes are addition of 4.4mm (no need for adapter anymore), a lot faster processor with improved next gen GUI, double-tap to wake the screen, Crossfeed, DAR, and LDAC support.
SP3k vs SP2kT (SS) – soundstage and imaging is the first thing I notice when switching between the DAPs, and it is clear in this comparison that SP3k sound spreads wider to the left/right and its imaging has a more 3D effect in how the sounds are placed in space. Tonality of SP2kT is warmer with a sound being a little denser in a comparison to more neutral transparent tonality of SP3k where I hear no coloring of the sound. Technical performance also differs with SP3k having a blacker background and improved definition of layering and separation of the sounds which makes SP2kT sound a bit denser in comparison. SP2kT tonality can get even warmer when you switch to Hybrid and Tube modes, while SP3k stays pure, natural, and relatively transparent.
SP2kT design stepped it up with addition of 4.4mm output, double-tap to wake and LDAC support, but it still uses older and slower processor which is noticeable in the speed of interface.

Other DAP comparisons.
SP3k vs Cayin N8ii (SS) – the soundstage expansion and imaging are nearly identical between these two DAPs. I went back’n’forth many times to confirm it. When it comes to the sound tonality and technical performance, they are not too far off either. I did have to set N8ii to P+ to boost output voltage in order to match SP3k sound characteristics. After that, tonality was very similar, though SP3k has just a touch more body in mids, making its sound a little smoother and more neutral. I also noticed that relative to Jewel IEMs, N8ii had a bit more sub-bass rumble, while SP3k had a faster and punchier impact of mid-bass. I also do hear SP3k to have a bit darker background with notes popping out of the darkness with a slightly faster transient response, but N8ii is not too far off either.
SP3k vs iBasso DX300 MAX SS – the soundstage expansion and imaging here are nearly a perfect match, with both wrapping around you, including a 3D holographic imaging effect of how the sounds are positioned in space. Tonality is where I hear the biggest difference since DX300 MAX SS has a brighter and more revealing tonality while SP3k is more neutral and reference in quality. In comparison, SP3k has a fuller body natural sound, but their technical performance is quite similar. Another thing to keep in mind, DX300 MAX SS is transportable and quite heavy. SP3k also on a heavier side, but not as heavy as MAX and slimmer in thickness.
SP3k vs Sony WM1ZM2 – the imaging between these two daps is similar but I find the soundstage expansion to be a little wider in SP3k. Tonality is a little smoother in WM1ZM2 while more neutral with SP3k, but the gap is not that big. I did notice M2 to have a little stronger mid-bass punch. Also, SP3k sound has a blacker background. When it comes to operation, even so M2 is Android 11 based, its slower processor makes the operation not as fast as SP3k. Also, SP3k has a more powerful output when it comes to driving full size headphones.
SP3k vs Lotoo PAW Gold LPGT – SP3k soundstage spreads wider, and its imaging has a more holographic placement of the sounds. Tonality wise, they are not too far off either. Both have a neutral reference tonality, perhaps with LPGT being just a little smoother in comparison. One thing that was noticeable is SP3k having a blacker background with a sharper transient of notes, while LPGT background doesn’t have the same black-hole purity. Also, you have to keep in mind that LPGT is audio playback only device while SP3k also supports apps and does streaming.

哥们真看不懂吧

作者说他煲机有100 小时
重点： sp3k 在 tonality（音色调性） 上和 sp2k 差不多， 但声场更有包围感（似乎有点像sp2kt ?） 背景更黑
sp3k 比sp2kt 横向声场更宽， 结像更3d, 但音色上sp2kt 更暖更模拟

在与所有dap 对比中几乎都提到背景更黑， 相信这个就是 SNR 130db 的威力， 声场和结像也是最顶尖的存在，但音色调性则不算最模拟， 属于中性， 但也没有让人感觉过于解析和干硬，

总体印象： DAP 界的iphone 14, 已入 12,13 的冲意义不大， 至少冲首发肯定是。。。

bd

sp3k不支持ldac？

听过，其实还是有点硬

声音比起p6 pro提升很大吗

其实就是2K加点声场，总体差别不大，调音路线相同
不像金2和金1差别大，调音路线都不一样。金1是暖厚湖，金2是纤细，声场大，力量感强