I know little about Denafrips - well nothing actually - but does it have a toslink connector? If so, just run an optical cable from the TV. That’s what we do between our Panasonic and the Naim streamer; it works well and gives very good sound.
The Zen Blue that james_n recommended would be a good choice as it supports aptX, aptX HD, LDAC and also AAC codecs. This is important as the MacBook can use aptX (HD), but the iPad cannot. The iPad uses AAC if the BT receiver can, but as far as I know only for AAC music files (not for mp3 or flac files). Still, having AAC in the receiver is good, as otherwise it always falls back to the poor SBC, even if the files are AAC.
Doesn’t do aptX HD, nor LDAC, nor AAC. Only aptX and SBC. Bluetooth 3.0. It’s outdated by now. When I tried it years ago, it failed to establish an aptX connection and used SBC although my then-up-to-date phone supported aptX.
How far away from the HiFi will your iPad and Mac be? I’ve generally found Bluetooth to be unreliable over all but the shortest distances (and sometimes not even then!) So I would consider some sort of WiFi connection, perhaps using AirPlay or Chromecast, which should also give you better sound quality.
You can pick up a used Airport Express for next to nothing for AirPlay, or a Chromecast Audio, and connect with an optical cable to your DAC. I know you said sound quality wasn’t a priority, but these are very cheap ways to get a decent lossless stream into your DAC.