@sardar17 u have the legendary vc1000 ._.
I do,i sent back my faulty gr07 for a refurbished pair of vc1000 to lmue.They sounded awesome until i got p1 and realized their limitations.Last week i auditioned p1 vs dn 2000 and dn 1000 for like 2 days with my cousin and both of us agree its a step up but i haven't heard dn 2000j yet.
The best thing about p1 is non fatiguing signature,this is my first iem to be non sibilant apart from havi b3.
But these have their limitations
1)Sub bass is lacking and it matters in some tracks
2)Mid bass is accentuated/increased,though it does not interfere in the mids,still it feels more than it should.Its gppd for pop/edm but more than required for rock
3)A bit on the warmer side
TIP TO OVERCOME MAJORITY OF THESE-------USE TRIPLE FLANGES,its difficult and painful at first but u will adapt and it will be worth ur time.Triple flanges makes the peak at 10k like others mentioned almost disappear,tightens the bass and just makes the mids more sweet.
I have noticed these things comparing p1 to my hp200's which are pretty neutral by all accounts.
If it helps p1 is the iem version of ath r70x ,,,great soundstage and mids but a tad bit more warm and having increased mid bass for punch.