Had a week now with my Audbos P4 and I can claim it is probably the best IEM buy I ever did in terms of price performance ratio and maybe in general, too.
So engaging, so natural and balanced and crystal clear with plenty of details and good extension to both ends.
Important for the next ratings:
I EQed the P4 -2dB at 63Hz and -3dB at 125Hz and have to mention I run it with my Samsung S9 in Adapt Sound modus (means, the App did like measure out my hearing abilities and adapts the sound which results in a slight lift in the bass and highs I would bet if I hear the difference to normal modus)
It comes so close to my Rose Mini4 and shares most strengths and exceeds even in some.
The P4 is the slightly bolder and more engaging and natural of the two and end to end extension is better and also the room feeling.
If you'd consider the Mini4 as neutral, the P4 is about 2-3 dB north in bass and continue this further to the mids at least.
Think it comes down to personal preferences or moods which to pick if you have to...The more engaging P4 or the more "reasonable" neutral Mini4.
Moods, think this gonna be the descision maker which I will pick the next time.
If I would not expecting the Mini6 the next weeks (and the MT100) I would be simply done because both, P4 and Mini4 reproduce my music such like I would expect it to be in real, live in front of me, true to life.
Unbelievable, the Audbos P4 sells for only 70€ atm