Short answer: the Bowers & Wilkins Px8, though neither ranks well in its class. Both are rated 2.6/5 for sound quality (#409 and #410 of 481 over-ear headphones), and the Bowers & Wilkins Px8 costs $469.99 against $499 for the iBasso SR2, with sound quality a draw, the lower price decides it. Both are rated below 3.0/5 among the 481 over-ear headphones, so if sound quality matters, consider the HIFIMAN Ananda Nano instead, ranked #6 at $319.
Why pick the Bowers & Wilkins Px8: Active noise cancelling and a manufacturer rated 30 hours of battery suit travel and commuting, and it also works over a cable. Watch for: The bass boost spills into the low mids and upper mids sit 1.7 dB under target, so vocals sound thick and recessed, for a preference score of 50.
What the iBasso SR2 does well: An open-back over-ear headphone weighing 0.9 lbs (395 g), with 108 dB/mW sensitivity and a 24 ohm load. Watch for: A Harman score of 50 places it in the lower part of the over-ear rankings.
Buy the Bowers & Wilkins Px8. Both are rated the same for sound quality, and it costs $29.01 less than the iBasso SR2.
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Active noise cancelling and a manufacturer rated 30 hours of battery suit travel and commuting, and it also works over a cable.
Amazon $469.99 eBay
An open-back over-ear headphone weighing 395 g, with 108 dB/mW sensitivity and a 24 ohm load.
Bloom Audio $499.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Bowers & Wilkins Px8 | iBasso SR2 | |
|---|---|---|
| Price | $469.99 | $499.00 |
| Ranked | #409 of 481 in Over-Ear Headphones | #410 of 481 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Harman Preference Score | 50 (measured by oratory1990, via AutoEQ) | 50 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 3.14 dB standard deviation | 3.72 dB standard deviation |
| Tonal Tilt | -1.61 (negative is warmer, positive brighter) | +1.13 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+3.9 dB at 30 Hz) | - |
| Connection | Wireless and wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 40mm dynamic (carbon cone) | - |
| Weight | 0.7 lbs (320 g) | 0.9 lbs (395g) |
| Active Noise Cancelling | Yes | - |
| Battery Life | 30 hours (Manufacturer specified) | - |
| Bluetooth Version | 5.2 | - |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, aptX Adaptive | - |
| Built-in Microphone | Yes | - |
| Back | - | Open |
| Impedance | - | 24 ohms |
| Sensitivity | - | 108 dB/mW |
| Frequency Response | - | 3Hz - 40kHz |
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