Bowers & Wilkins 749CCM664S vs KEF 991CI160QR
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Choosing between the Bowers & Wilkins 749CCM664S and KEF 991CI160QR? Both compete in the Speaker (L/R) segment. Here’s how they compare across the specs that matter most for your home theater.
Pricing for both models is currently unavailable. Check the retailer links below for current deals.
Looking at overall performance dimensions: The KEF 991CI160QR leads in value, audio quality, volume/SPL, form factor, room fit.
For speaker performance, the KEF 991CI160QR is more sensitive at 89 dB vs 82 dB. Higher sensitivity means your receiver works less hard, leaving more headroom for dynamic peaks in movie soundtracks. A speaker rated 3 dB higher in sensitivity needs half the amplifier power to reach the same volume.
The KEF 991CI160QR holds an advantage across more performance dimensions, but the Bowers & Wilkins 749CCM664S may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
For most home theaters, the KEF 991CI160QR is the stronger choice — it leads in 5 of 5 scored dimensions. The Bowers & Wilkins 749CCM664S makes more sense if budget is the primary constraint.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Bowers & Wilkins 749CCM664S
KEF 991CI160QR
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | 2-way dual-channel | 2-way |
| Sensitivity | 82dB | 89dB |
| Impedance | 8Ω | 8Ω |
| Freq Response Low | 48Hz | 38Hz |
| Freq Response High | 30000Hz | 34000Hz |
| Crossover | — | 3000Hz |
| Bi-Amp Capable | No | No |
| Rec. Power Min | 25W | 10W |
| Rec. Power Max | 80W | 125W |
| Mounting Type | in-ceiling | in-ceiling |
| Mounting Depth | 5.2" | 3.58" |
| Cutout Diameter | 8" | 7.71" |
| Cutout Width | — | — |
| Cutout Height | — | — |
| Wall Thickness Min | 0.25" | 0.24" |
| Wall Thickness Max | 1" | 1.42" |
| Back Box Included | No | No |
| Back Box Required | No | No |
| Mounting Mechanism | — | — |
| Installation Type | — | — |
| Stud Spacing | — | — |
| Paintable Grille | Yes | No |
| Magnetic Grille | Yes | No |
| Grille Shape | — | — |
| Connector Type | spring clips | — |
| Wire Gauge Max | — | — |
| Angle Adjustable | No | No |
| Pivot Angle | — | — |
| Treble Attenuation Switch | No | No |
| LCR Capable | No | No |
| Coaxial | No | No |
| IP Rating | — | — |
| Moisture Resistant | No | No |
| UV Resistant | No | No |
| Salt Spray Rated | No | No |
| Enclosure Material | — | — |
| Grille Material | — | — |
| Bracket Type | — | — |
| Bracket Included | No | No |
| Dual Voice Coil (SDI) | No | No |
Key Differences
- Rec. Power Min: Bowers & Wilkins 749CCM664S at 25W vs KEF 991CI160QR at 10W
- Rec. Power Max: Bowers & Wilkins 749CCM664S at 80W vs KEF 991CI160QR at 125W
- Mounting Depth: Bowers & Wilkins 749CCM664S at 5.2" vs KEF 991CI160QR at 3.58"
- Wall Thickness Max: Bowers & Wilkins 749CCM664S at 1" vs KEF 991CI160QR at 1.42"
- Freq Response Low: Bowers & Wilkins 749CCM664S at 48Hz vs KEF 991CI160QR at 38Hz. Determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support.
Which Should You Choose?
Choose KEF 991CI160QR if you want:
- + better sensitivity — higher sensitivity means your receiver works less hard, leaving more headroom for dynamic peaks in movie soundtracks
- + better freq response low — determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support
See Where These Rank
Check our editorial rankings to see how Bowers & Wilkins 749CCM664S and KEF 991CI160QR compare to the rest of the field.
Best Speaker (L/R) RankingsRelated Calculators
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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