Overall, B&W PX7 editions present a wide soundstage and deep bass reproduction across a wide range of frequencies from 10Hz to 30kHz. B&W utilized the same engineers as the team that was behind their prestigious 800 Series Diamond speakers. These are the same speakers used at Abbey Road Studios, and we think this is what sets both the original edition PX7 and the new Carbon Edition apart.
All PX7 editions utilize B&W’s custom 43.6mm drivers which are larger than the 40mm drivers used in virtually every other headphone in this class. With the new PX7 Carbon Edition, you will hear a broad presentation of lower frequency content across the board especially on recordings where there’s a lot of natural instruments playing all at once. Dave Matthews Band “The Best of What’s Around,” is a really good track that will let you hear this natural presentation of details.
Also, if you like streaming hi-res music, the PX7s are compatible with Qualcomm’s high-resolution AptX which is designed to sound substantially better than standard Bluetooth. This promises class-leading, 24-bit/48kHz Bluetooth transmission, and low latency. Think of music with tighter bass, clearer mid-range, and more details in the overall sense of presentation.
Next, we tested the noise cancellation. In terms of low-frequencies like the low-end “hum” of a car or the sound of a train passing, the PX7 Carbon Edition performs really well here. We found the performance was comparable to the best noise-cancelling headphones on the market. We compared them directly to the Bose 700 and the Sony WH-1000XM4 top-of-the-line noise-cancelling headphones in our 2020 Best Noise-Cancelling Headphones Comparison — so be sure to check that out, if you want to know how the PX7 Carbon Edition performs against the best.