KEF Q350 vs MartinLogan Motion 35XTi
The KEF Q350 is an easier load for a receiver (8 Ω vs 4 Ω). The MartinLogan Motion 35XTi is more sensitive (92 dB vs 87 dB), so it plays louder per watt, plays lower (50 Hz vs 63 Hz) and costs less ($750 vs $800).
What each one works with
Checked against every product in our catalogue by the same engine as the compatibility checker.
| Q350 | Motion 35XTi | |
|---|---|---|
| Receivers and amps that drive it | 29 of 29 | 28 of 29, 14 after a setting change |
Specs side by side
Values that differ are bold. A dash means that model doesn't publish the spec.
| Q350 | Motion 35XTi | |
|---|---|---|
| Impedance | 8 Ω | 4 Ω |
| Sensitivity | 87 dB (2.83 V, 1 m) | 92 dB (2.83 V, 1 m) |
| Low end | 63 Hz | 50 Hz |
| Drivers | 1 × 25 mm, 1 × 165 mm | 1 × 32 mm, 1 × 165 mm |
| Size | 8×14×12 in | 8×14×12 in |
| Recommended amplifier power | 15–120 W | 20–250 W |
| Weight | 7.6 kg (16.8 lb) | 8.4 kg (18.5 lb) |
| MSRP | $800 a pair (MSRP, August 2025) | $750 each (MSRP, September 2026) |
Every spec and pairing: KEF Q350, MartinLogan Motion 35XTi.
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References
- KEF Q350: Owner's manual, assets.kef.com, retrieved September 15, 2026
- KEF Q350: Manufacturer product page, web.archive.org, retrieved September 15, 2026
- MartinLogan Motion 35XTi: Spec sheet, martinlogan.com, retrieved September 15, 2026
- MartinLogan Motion 35XTi: Retailer listing, safeandsoundhq.com, retrieved September 15, 2026
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