I was one of those who didn't expect anything any more from the M8V2, I was desperate to get it one day and the measurements here seemed to be far from my expectations/needs.
Then I finally got this item, a few weeks ago, and I tried it for what I intended to use it => with a HEDDphone of 42ohms and only 87db. Basically, I was almost sure to sell it on ebay within a month.
The time I was waiting for it (may 2020 till Jan 2021), I ordered a supposed replacement for me with a Astell & Kern Kann Alpha with 12V available on 4.4mm !!! which shoulf=d have done the job.
View attachment 112434After one month, I finally will keep the M8 V2 as I can't relate any of the measurements of ammir with what I can hear with the HEDDphone..=> where are the XLR4 measurements ? Where can I get the instant pick voltage which probably can explain why the low and ultra low frequencies are far more impressive with the M8V2 giving clear, fast deep kicks in the throat than I get with the KannAlpha or my XDuoo XD05plus...
So questions are :
Why the Kann Alpha has so much distortion compared to the M8V2 near max volume (between 135 to 150 on volume knob) while M8 v2 stays clear without noticeable distortion in the ears ?
Why the Monolith THX 887 is still faster and clearer in low and ultra low frequencies, but the M8V2 is the nearest I could get, I would near a direct connection to an old Sony TAN-55ES of 2x100W and not far behind the THX887 ?
I am wondering, if some interesting measurements are not missing here !! I really wan't to see what happens near in THD at max voltage/power and see some figures related to instant kicks the HEDDphone can produce with the THX887 and the M8V2, and not with other of my amps..
It would be nice to see an iFI diablo being measured too, to see if more power in a portable amp can still help to deliver ultrafast impacts or batteries will limit in any case this feature (it seems the impressive Cayin C9 is limited with demanding headphones like mine by HEDD or even with the HD800s) Some Cayin people explained me, batteries are the main factor to limit those kicks.
Anyway .. at the moment, I can't find any competitors on the market else than Ifi Diablo (without BT feature) of the M8V2.. So, after all, I will keep it and sell everything else (Kann Alpha, Xduoo XD05+).
I hope there will be soon or late some measurements of instant peak voltage or anything else which could explain why the M8V2 is far better than it is supposed to be here and why my HEDDphone sounds so good.
View attachment 112435