The EA type 3 adapter is very good and transparent. Waiting on a DHC hypershort 4.4 to 2.5 adapter, which I've always had good luck with, though you never know when you're going to get it.To my ears, mee audio adapter does degrade the sound quality, using with U18t. It rolls off the top end a bit, less treble sparkle and airlines. So far, the most transparent 4.4mm adapters I found are from Effect Audio and PlusSound.
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