If that is right why you in a 1k dap thread? Go to a 100 euros , they all sound the same.....no, not all daps sound the same, that is reality , not an subjective stuff,about the sq price ratio, if you know anything about this crazy hobby you know that to evolve 5 % in sq you have to spend double or more that is valid to home audio too, its life....but sometimes those 5% are so wonderfull....i ENJOY listen to music very much, the only thing i dont enjoy is my bank account.
Thats irrelevant.. Most daps over 900 bucks sound already so good, that i personally find it hard to distinguish sometimes. They differ slightly in tonality but SQ itself is already on a very high level when you use efficient to moderate demanding iems/headphones.
Let me present you with my conclusions from some of the A/B testing i did last 2 years (most of them being on a higher level than 200 dol dongles):
Test 1. Shanling M9, IBasso dx312EXN, Pioneer XDP-300r, using Beyerdynamic Xelento, Ibasso IT07.
First impressions: M9- WOW what a stage, bass and dynamics. Its a new toy and very expensive, so it must sound the best. And it did. But doing this comparisons on the second day, i honestly didnt hear any difference in soundstage width and bass response between the M9 and the 5 years old Pioneer. I got depressed -2700e! The Ibasso presented slightly different type of separation, so it was easier to distinguish but it wasnt by no means worse. The detail was just slightly better on the M9. Was it the best sounding? Yes it was but maybe 8-10% better.
Test 2. IBasso dx312 EXN, AK Sp1000, AK Sp1000M, Pioneer (again), using Xelento, Nanna, IT07, Monarch Mk2:
The Sp1k had the deepest sound with the blackest beckground. But the staging, overall detail were better on the IBasso. Pioneer had more polite dynamics but the staging and detail were comparable. The 1000M sounded warmer than the Sp1k. Thats all.
All of them sounded best with the Monarch Mk2 and also very similar. I would pick the Pioneer paired with the Monarch Mk2 over the Sp1000 paired with Xelento, Nanna or IT07 anytime. That shows how much more important transducers are.
Test 3. Shanling M8, Fiio M11 Plus ESS, AK Norma sr25, AK Sp2kT, AK Acro ca1000.
Here the main differences were in tonality, were the M8 sounded the most organic. But technicalities were practically on the same level, with the sr25 having narrowest staging (but still very good) and the M11 Plus ESS having slightly flatter sound. But the differences were small and every source sounded great enough with the Monarch Mk2 and Dan Clark Aeon Noire.
Test 4. AK Kann Max, IBasso dx320, IFI Gold Bar.
Small differences in tonality, where the dx320 was warmer and smoother in trebles, the Max having sharper (but still precise and very good) treble, Gold Bar having big dynamics and very very similar detail retrieval. Soundstage was similar on the Max and dx320, slightly narrower but higher on the IFI.
Do the expensive daps sound better? Yes they do but just very slightly better. The M15s will probably be on the level of other daps from the price range 900-2200e, with small nuances. The main differences are in tonality-slightly warmer, colder, sharper or smoother.