You're capped at 256 kbps AAC-LC. iOS does not support anything other than SBC and AAC-LC

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Android caps at LDAC 990kbps so it's the closest to lossless... But why are you buying a Bluetooth Device for lossless when you know Bluetooth doesn't have a lossless codec yet... Anyway you'd not notice the difference anyhow... Also why are you not using Apple Music on an Apple device when they have actually true lossless not the MQA scam that Tidal sells

If you want to (or have to) use Apple products then go with Apple Music. When you will be more reasonable, then forget Tidal, its a scam. Tried Spotify, Tidal, Deezer and Apple music side by side. Tidal is nearly as bad as Spotify. I really enjoy Deezer as it's cheap and great value (cd quality). You could use a wired connection for greater audio quality, it makes a greater difference then the streaming service. If you will reach a great setup with wired connections then check out Quboz.

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Yes. Had been for almost two years now... And it's true 1411kbps lossless not whatever concoction MQA claims to be... And it's also cheaper

No. Still 256 kbps over Bluetooth. Only Lightning to USB DAC where you can get lossless and Hi-Res depending on your DAC capability

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>You're capped at 256 kbps AAC-LC.

No, according to https://www.bowerswilkins.com/nl-nl/product/headphones/px7-s2 it is Bluetooth 5.2 met aptX™ Adaptive. So no AAC as it is not supported by the PX7 and no APTX as it is not supported by iOS hence SBC as the only common codec.

You are gapped twice.

Any lossy codec discard out information.

If your source is lossy like Spotify, you will have some generation loss due to its lossy codec.

If you use Bluetooth, again you are using a lossy codec. In case of PX7 and iOS, the only common codec is the mandatory SBC.

Sounds like a disaster. However, what you can do is take a couple of lossless files (ALAC as Apple don't like FLAC) and load them on your phone. Also transcode them to e.g. 256 AAC.

Do a listening test (preferably unsighted). Can you really tel the lossless and the lossy sources apart over Bluetooth? Would be surprised.

>When you will be more reasonable, then forget Tidal, its a scam. Tried Spotify, Tidal, Deezer and Apple music side by side. Tidal is nearly as bad as Spotify. I really enjoy Deezer as it's cheap and great value (cd quality).

1. Tidal isn't necessarily "a scam" if you can get over MQA, philosophically. Stick to their Hi-Fi tier and the sound quality is fine.
2. Spotify isn't necessarily "bad", as most people can't tell between their Very High setting and lossless anyway.
3. The particular master recording used for a given album has a bigger impact on sound quality than bitrate, therefore since Deezer shares a lot of the same master recordings with Spotify, they basically sound the same anyway. For example, they both use the same flawed copy of Gorillaz's track, El Mañana from the album Demon Days, for whatever reason. Here is a spectrogram analysis of the track as it appears on the original CD (left) versus Spotify (right). Now the same comparison but for Apple Music (left) versus Deezer (right).