Short answer: the PSB Imagine B50. It ranks #52 of 168 bookshelf speakers by sound quality, rated 3.7/5, at $999; the Bowers & Wilkins 607 S3 ranks #65, rated 3.6/5, and costs $1,000, which makes this an easy call rather than a real tradeoff.
What the PSB Imagine B50 does well: The standmount sibling to the PSB Imagine T65 tower, from PSB’s current 2023-refreshed Imagine line, using the same titanium-dome tweeter and woven-carbon-fiber woofer platform. The tradeoff: On-axis smoothness of just 0.235 and a deviation of 0.368dB are unremarkable for the price, with a +0.22dB per octave upward tilt giving it a brighter-leaning balance, a predicted in-room smoothness of just 0.35, and a Harman in-room bass extension estimate of only 49Hz.
Why pick the Bowers & Wilkins 607 S3: The current smallest 600 Series speaker, with a 5” Continuum cone and a 1” decoupled double dome titanium tweeter, rated 52Hz to 28kHz. Watch for: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from its measured predecessor.
Buy the PSB Imagine B50. It is rated higher for sound quality than the Bowers & Wilkins 607 S3 and costs less, which makes it the one to get unless you need something the other one does better.
About the ratings: the Bowers & Wilkins 607 S3’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 3.3 to 3.9, so this verdict could change once it is measured.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| PSB Imagine B50 | Bowers & Wilkins 607 S3 | |
|---|---|---|
| Price | $999 per pair | $1,000 per pair |
| Ranked | #52 of 168 in Medium Size Bookshelf Speakers | #65 of 168 in Medium Size Bookshelf Speakers Estimated |
| Enclosure | 2-way, bass-reflex with rear slot port | - |
| Drivers | 1” titanium dome tweeter (ferrofluid neodymium magnet), 5.25” woven carbon-fiber woofer | 1” titanium decoupled double dome tweeter, 5” Continuum cone mid/bass |
| Dimensions | 6.75W x 11.8H x 9.875D in | 11.8”H x 6.5”W x 8.1”D (300 x 165 x 207 mm) |
| Weight | approx. 11.2 lbs (5.1 kg) each | 10.3 lbs (4.65 kg) |
| Sensitivity | 85dB anechoic / 87dB in-room | 84dB (manufacturer specified) |
| Impedance | 8 ohms nominal, 4 ohms minimum | 8 ohms nominal (manufacturer specified) |
| Country | Canada (design) | - |
| Spinorama Preference Score | 4.63 | - |
| Spinorama Preference Score with Perfect Sub | 6.92 | - |
| Bass Extension (-3dB) | 69.6Hz (measured, Erin’s Audio Corner via spinorama.org) | 52Hz (manufacturer specified) |
| Bass Extension (-10dB) | 44.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | - |
| DIY Kit | No | No |
| Frequency Response | - | 52Hz-28kHz (manufacturer specified) |
| Woofer Cabinet | - | ported |
Related Speaker Comparisons
How PSB Imagine B50 compares with other leading options:
- KEF LS50 Meta vs PSB Imagine B50
- Wharfedale EVO 5.1 vs PSB Imagine B50
- Q Acoustics 3030c vs PSB Imagine B50
- KEF Q150 vs PSB Imagine B50
- Bowers & Wilkins 607 S3 vs Q Acoustics 5010
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Speakers In Full
PSB Imagine B50: $999 per pair PSB Speakers eBay
Same family: the PSB Imagine T54 (smaller floorstanding, estimated 4.2/5) and the PSB Imagine T65 (larger floorstanding, rated 4.3/5).
Pros: The standmount sibling to the PSB Imagine T65 tower, from PSB’s current 2023-refreshed Imagine line, using the same titanium-dome tweeter and woven-carbon-fiber woofer platform. Measured bass extension of 69.6Hz (-3dB).
Cons: On-axis smoothness of just 0.235 and a deviation of 0.368dB are unremarkable for the price, with a +0.22dB per octave upward tilt giving it a brighter-leaning balance, a predicted in-room smoothness of just 0.35, and a Harman in-room bass extension estimate of only 49Hz. Current retail pricing ($999/pair) has risen well above the ~$700 figure recorded in the spinorama snapshot.
Full PSB Imagine B50 review and specifications →
| Released | Oct 2024 (2 years ago) |
|---|---|
| Bass Extension (-10dB) | 44.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 69.6Hz (measured, Erin’s Audio Corner via spinorama.org) |
| Country | Canada (design) |
| DIY Kit | No |
| Dimensions | 6.75W x 11.8H x 9.875D in |
| Drivers | 1” titanium dome tweeter (ferrofluid neodymium magnet), 5.25” woven carbon-fiber woofer |
| Enclosure | 2-way, bass-reflex with rear slot port |
| Impedance | 8 ohms nominal, 4 ohms minimum |
| Sensitivity | 85dB anechoic / 87dB in-room |
| Spinorama Preference Score | 4.63 |
| Spinorama Preference Score with Perfect Sub | 6.92 |
| Weight | approx. 11.2 lbs (5.1 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Bowers & Wilkins 607 S3: $1,000 per pair Estimated Audio Advisor eBay
Older models: the Bowers & Wilkins 686 S2 (ranked higher, rated 3.8/5) and the Bowers & Wilkins 607 S2 Anniversary Edition (ranked lower, rated 3.5/5). See every Bowers & Wilkins 600 Series generation.
Same family: the Bowers & Wilkins 606 S3 (larger bookshelf, estimated 3.9/5), the Bowers & Wilkins 603 S3 (floorstanding, estimated 4.1/5) and the Bowers & Wilkins HTM6 S3 (center, estimated 3.4/5).
Pros: The current smallest 600 Series speaker, with a 5” Continuum cone and a 1” decoupled double dome titanium tweeter, rated 52Hz to 28kHz.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from its measured predecessor. Sensitivity is a low 84dB, so it wants a reasonably powerful amplifier.
Full Bowers & Wilkins 607 S3 review and specifications →
| Released | Sep 2023 (3 years ago) |
|---|---|
| Bass Extension (-3dB) | 52Hz (manufacturer specified) |
| DIY Kit | No |
| Dimensions | 11.8”H x 6.5”W x 8.1”D (300 x 165 x 207 mm) |
| Drivers | 1” titanium decoupled double dome tweeter, 5” Continuum cone mid/bass |
| Frequency Response | 52Hz-28kHz (manufacturer specified) |
| Impedance | 8 ohms nominal (manufacturer specified) |
| Sensitivity | 84dB (manufacturer specified) |
| Weight | 10.3 lbs (4.65 kg) |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons