Didn't hear of them neither, but buying quite a lot on Ali and as long as it satisfies my needs and works for its' money don't really looking for big brands there. Don't have, BTA30 here :)

Look harder https://a.aliexpress.com/_vPOftb Anything based on older CSR chip won't have Adaptive, you'll need something newer based on QC line

With plain aptX about 160ms - not suitable for movies nor games ! Get aptX LL headphones, or one of the great BTR adapters FiiO has if your headphones support wired connection (BTR3 here :)

Topping E30 is better, especially if Bluetooth is irrelevant for you

Thank you, this is v1.12 actually

Can you please share a link to 1.2 beta firmware ?

Not using multipoint, can't help you there. To pair faster, just put the headphones with the BTR3K closer to BTA30. This way mine connect almost instantaneously, otherwise too many BT devices here too.

Working great. Spectacular so far.

Unless it's not the upsampling doing (can be switched in app), indeed seems like a defective opt in.

Try disconnecting every input and output and connecting the unit with a regular phone power supply, delete pairing and try again

3.Optical in-----Optical out & Bluetooth TX, please :)

You can wait for a new chips or, meanwhile, engineer two BT chips in one device, even use small additional PCB not to mess with current design. Still cost effective. Lots of examples in DIY.

Missed the LDAC, my bad, and your guess is correct, 270-320ms. But since Sony developed it especially for music, nobody cares about latency with it. Can try forcing LDAC between BTA30 and the BTR3 and play a few games on the PS4 Pro, but since I just moved to my new home it could take a few days ...

Here, as official as it gets ;) AptX HD 250ms SBC 220ms AAC 120ms AptX Adaptive 80ms AptX 70ms AptX LL 40ms But you will not have LDAC connecting BTA30 to PS4 Pro with USB, check the official specs or in the posts above.

You'll learn :) no offense, really. For instance, googling "LDAC multipoint" would've saved you $89, this is the way