I only use black filter and I have to mod it for the A6 to correct the timbre. On the other hand, A7 has a more accurate timbre and I can see clearly different prefferences for each filter, which makes it more versatile despite of having less nozzle options than A6. I still did mod the black filter on A7 to expand the soundstage and improve clarity tho, because the main difference between those two I would say is the timbre and the quantity in "air" and I really did miss that "out of the head" feeling.Thanks for the copy and paste, I only use the black filter and I think the peak is closer to 2k on my pair but the peak kind of disappeared over time. I am not sure if it is brain run-in or actual run-in of the piezo. For me I don't think male vocal is actually recessed. YMMV I guess. I wish I can try the A6 or the A7 before placing my order....
And I wish they have 2-pin version ...
In a nutshell:
Black modded filter + A6 + Ibasso DX160 high gain - Huge soundstage and "airy", having a very "out of the head" feeling.
Black modded filter + A7 + Ibasso DX160 high gain - Great timbre and instrument separation. All nozzles has different profiles and they are all viable compared to A6.
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