A little bit losing my mind in early morning the other day, I ordered Aviot TE-D01b when their price dropped to $165 on amazon. No expectation whatsoever, just curious how they rival against nuarl nt01ax. Surprisingly, they're the best TWS in terms of SQ so far for my ears, dethroning nt01ax and MW07 go.
They have the lowest noise floor. Almost dead silent. After a week of testing L2P, the difference was immediately realized. They have neutral sound sig, tuned toward reference monitor. The bass is tight with good layers, though the amount is sufficient but not for basshead. They shine in mids and highs. Clean, crisp, accurate, and presented with authority. The most impressive part is that, despite still lack of details comparing with high-end wired IEMS, they're as good as those to de-digitize the sound without any micro-pierce and high volume cracking/clipping. I can't imagine that the lossy BT signals can be transformed to such high quality sound. The attention to perfection in SQ throughout whole spectrum is second to none. Comparing with nt01ax, they have a slightly smaller sound stage, less bass, but better clarity in mids, and almost identical in other aspects. The tonality of Aviot leans toward "audiophile" type reference monitor, while nt01ax toward consumer.
The stock tips give a thinner sound. The spiral dots do the trick perfectly.
They're light, smaller than I assumed, and very comfortable. Sound isolation is very good as well. and IPX7. Call quality is good as well. Had a call for about 30mins, without any complaints from the other side.
The cons are a large charging case (about double the length of that in nt01ax and MW07 though thinner) and limited button controls. Only play/pause and skip forward, same on both sides. And only Japanese quick guide. I have to google to learn how to use them.
I don't think they'll attract much attention since the sound sig does not follow the mainstream trend. But the craftsmanship in SQ is in their own league. They're definitely a keeper for me, and I'm now etching for Aviot's new flagship, TE-BD21f, a hybrid with 2BAs and 1 DD.