Bowers & Wilkins 607 S3 vs KEF Q350
The Bowers & Wilkins 607 S3 plays lower (52 Hz vs 63 Hz). The KEF Q350 is more sensitive (87 dB vs 84 dB), so it plays louder per watt and costs less ($800 vs $1,000).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| 607 S3 | Q350 | |
|---|---|---|
| Receivers and amps that drive it | 29 of 29 | 29 of 29 |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| 607 S3 | Q350 | |
|---|---|---|
| Impedance | 8 Ω | 8 Ω |
| Sensitivity | 84 dB (2.83 V, 1 m) | 87 dB (2.83 V, 1 m) |
| Low end | 52 Hz | 63 Hz |
| Drivers | 1 × 25 mm, 1 × 130 mm | 1 × 25 mm, 1 × 165 mm |
| Size | 6×12×8 in | 8×14×12 in |
| Recommended amplifier power | 30–100 W | 15–120 W |
| Weight | 4.65 kg (10.3 lb) | 7.6 kg (16.8 lb) |
| MSRP | $1,000 a pair (MSRP, September 2026) | $800 a pair (MSRP, August 2025) |
Every spec and pairing: Bowers & Wilkins 607 S3, KEF Q350.
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References
- Bowers & Wilkins 607 S3: Spec sheet, bowerswilkins.com, retrieved September 15, 2026
- Bowers & Wilkins 607 S3: Manufacturer product page, bowerswilkins.com, retrieved September 15, 2026
- KEF Q350: Owner's manual, assets.kef.com, retrieved September 15, 2026
- KEF Q350: Manufacturer product page, web.archive.org, retrieved September 15, 2026
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