[shiroiushi]

Also, wireless subwoofers (that come on many consumer TV speaker systems these days) don't have this latency problem either. You just plug them in and they sync to the system and work transparently. They can't have any noticeable latency, or else the bass would be out-of-sync with either the rest of the audio, or if they slowed down the audio to account for latency, then all the sound would be out-of-sync with the video you're probably watching with it.

[bzzzt]

There are more ways than using bluetooth to transfer digital audio wireless. Probably they are using a custom protocol.

[shiroiushi]

Yes, that's what I mean: they're basically doing the same thing as Bluetooth, but their proprietary implementation isn't saddled with the huge latency problems that Bluetooth has. So Bluetooth seems to be a poorly designed protocol.

[Miraste]

Those generally uses a custom 2.4GHz RF protocol, like gaming headsets and mice with dongles.

[rightbyte]

The bass can be sent with a lower bitrate since the output signal is low frequency anyways.