Beoplay H95

Bang & Olufsen H95 or H100. Real bass down below 20hz

There are many premium wireless headphones they sound significantly better than XM6. Bathys is only one example.  You could also check out B&W PX8, PX7s2/3, B&O H95 and H100, Noble Audio Fokus Apollo, Mark Levinson no5909, etc etc.  All of the above prioritize sound over ANC though. 

The difference between a good 10k wireless over the ears ANC headphones and a flagship wireless OTE is not that crazy. There is a limit to the detail retention they can do and all. I think tuning matters more (even much more than codecs really). Though I heard Focal Bathys, Bang And Olufsen H95 (not the new H100) do sound much better than other flagships. Funnily enough sennheiser launched HDB600 recently so I think we should wait to see if it is a breakthrough like sennheiser claims it is or not. But yeah B&O, Focal flagships are for now much better than Sennheiser Momentum 4s, Bose QC ultra and all and well even 5k-10k wireless headphones sound better than sony XMs so its not even worth mentioning about those trash cans.. (they don't even have a better anc than bose to consider it even for that). Now if you mean a 10k audio product in general vs 25k audio product. Yeah the difference is nuts because that is technically just the starting point of audiophile gears in general. You will notice there are these things called open back headphones and they produce details and soundstage on another level but the ones that nail the bass too cost a fortune (and I haven't heard one of those). But I can just imagine how good they are gonna be. You may think oh how can somethings sound better than this and then you hear a product where you can even listen to the breath of the singers at times and feel the insane imaging and soundstage they have.

Love my B&O H95s

>Thanks for that detailed overview! Learned a lot on aptX dongles…. Glad to be of help. >Since you mentioned you have the H95, could you comment on the sound vs the 630 or P8 s2? **B&O H95** My B&O H95 are close approaching 5 years old and back then, they retailed for $800 and now it's $1250 USD. In comparison to Px8 S2, H95's sound signature is also colored warm with elevated bass shelf. It has a small dip in the mid-mid that hurts the detail of voices and instruments. There's also a peak in the low treble that accentuates the upper harmonics of vocals, followed by some inconsistencies in the mid-treble that cause sibilants to alternate between shrill and dull, depending on their pitch. Soundstage sounds large, but it doesn't sound very open or natural and lacks the immersive quality of the Px8 S2. You can tune the H95 using "Beosonic," a circular coordinate UI where you tap and drag the tuning towards Bright, Energetic, Warm, Relaxed and anywhere in between in the B&O app. It's simple UI for user but not precise as an equalizer. Speaking of the app, it's OK but horribly buggy in Android. Otherwise, it's beautifully designed, but it's more on-ear, the ear pads are small with shallow ear cups, than over-ear headphones and are not comfortable for long listening sessions. With it's current price point, it's not a wireless ANC headphone I'd recommend. **Sennheiser HDB-630** These are Sennheiser's brand new audiophile tuned wireless ANC headphones. Opposite of Px8 S2's colored warm sound signature, the HDB-630 is faithfully neutral with linear extended sub bass and bass that's quick and controlled, clear mids and controlled treble that's detailed and airy w/o harshness. What's great about the HDB-630 is that it's neutral baseline, allowing you to truly tune the sound signature using Senn's Smart Control Plus app's parametric EQ versus B&W's standard graphic equalizer, which only lets you boost or cut within preset frequency bands — handy for quick adjustments, but not ideal if those bands aren’t exactly where you want them. With parametric EQ, you can set the exact frequency range you prefer, control the bandwidth to make that adjustment wide or narrow, and choose the filter type for even more precise shaping. This flexibility lets you tailor vocals to your preference, adjust brightness, or fine-tune bass — without affecting the rest of your music. One could try to replicate Px8 S2's sound signature but I do hear HDB-630's soundstage as average in comparison. At $500, HDB-630 is pretty good value since includes BTD-700 aptX USB-C BT dongle ($60) and competes to other wireless ANC headphones in the $400-500 price range. HDB-630 build is solid with quality PC-ABS plastics but it's not as luxurious as B&W Px8 / Px8 S2s. Hope this helps!