It would be a killer feature for any USB dongle to have it, though I suspect the required programing skill to implement one is a bit out of most USB dongle manufacturer's capability.
The Qudelix 5K is one of them (it can be used as both BT or USB dongle) with a very robust app and PEQ capabilities, but of course, the L&P dongles are in a different league measurement-wise.
However, I don't ask for an app or even a built-in solution with limited capabilities, just a way to "inject" or transfer our own individual presets into the W1/W2, even in the most primitive manner (with a text editor, AutoEQ style) or something like they did with the custom presets for certain IEMs they put in the last firmware upgrades, but giving the user a chance on their own.
Hopefully someone might reach Mr. Wan and tell him the urge for this, it could be a game changer for an already TOTL device and bring an endless way of possibilities, specially with the limited availability of system-wide PEQ solutions on Android and iOS.
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