PX4+4 – No, that's not a new exotic direct-heated triode. The Px8 [$699] is B&W's new flagship active noise-cancelling wireless headphone. It scales up the existing Px7 S2 on sound with new 40mm carbon drivers angled inside the ear cups. Available in black or tan leather as shown, the arm structure is cast aluminum and each elliptical logo plate flaunts a diamond-cut edge. Earcups, memory-foam pillows and headband trim out in Napa leather. Qualcomm aptXTM adaptive, USB-C and 3.5mm analog cover input scenarios. The necessary cables for wired connections are included. Onboard DSP promises 24-bit resolution from streaming services. Out of its six microphones, two measure each driver's output, two react to ambient noise and two provide voice clarity with enhanced noise suppression. The launch of the Px8 coincides with a major upgrade for the B&W Music App. This allows Px8 users to stream their music directly from mobile device over Deezer, Qobuz and Tidal. Physical controls on each earcup ensure full control even without the Music App and the Px8 can also launch a phone's voice assistant at the touch of a button. 30 hours of battery life and a 15-minute recharge to replenish seven hours are more performance specs.
