Bowers & Wilkins 603 S3-OAK vs ELAC CONCENTRO-2.0
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Choosing between the Bowers & Wilkins 603 S3-OAK and ELAC CONCENTRO-2.0? 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 Bowers & Wilkins 603 S3-OAK scores higher in value, form factor, room fit.
For speaker performance, impedances of 8Ω vs 4Ω. Lower impedance draws more current from your receiver. A 4-ohm speaker needs a receiver rated for that load, or you risk thermal shutdown during loud passages.
The Bowers & Wilkins 603 S3-OAK holds an advantage across more performance dimensions, but the ELAC CONCENTRO-2.0 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 Bowers & Wilkins 603 S3-OAK is the stronger choice — it leads in 3 of 3 scored dimensions. The ELAC CONCENTRO-2.0 makes more sense if budget is the primary constraint.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Bowers & Wilkins 603 S3-OAK
ELAC CONCENTRO-2.0
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | 3-way | 4-way bass reflex |
| Sensitivity | 90dB | 90dB |
| Impedance | 8Ω | 4Ω |
| Freq Response Low | 29Hz | 18Hz |
| Freq Response High | 33000Hz | 50000Hz |
| Crossover | — | 2700Hz |
| Bi-Amp Capable | No | No |
| Rec. Power Min | 30W | — |
| Rec. Power Max | 150W | — |
| Mounting Type | tower | tower |
| Mounting Depth | — | — |
| Cutout Diameter | — | — |
| Cutout Width | — | — |
| Cutout Height | — | — |
| Wall Thickness Min | — | — |
| Wall Thickness Max | — | — |
| Back Box Included | No | No |
| Back Box Required | No | No |
| Mounting Mechanism | — | — |
| Installation Type | — | — |
| Stud Spacing | — | — |
| Paintable Grille | No | No |
| Magnetic Grille | No | No |
| Grille Shape | — | — |
| Connector Type | — | — |
| 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
- Impedance: Bowers & Wilkins 603 S3-OAK at 8Ω vs ELAC CONCENTRO-2.0 at 4Ω. Lower impedance draws more current from your receiver. A 4-ohm speaker needs a receiver rated for that load, or you risk thermal shutdown during loud passages.
- Freq Response Low: Bowers & Wilkins 603 S3-OAK at 29Hz vs ELAC CONCENTRO-2.0 at 18Hz. Determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support.
- Freq Response High: Bowers & Wilkins 603 S3-OAK at 33000Hz vs ELAC CONCENTRO-2.0 at 50000Hz
- Driver Config: Bowers & Wilkins 603 S3-OAK at 3-way vs ELAC CONCENTRO-2.0 at 4-way bass reflex. 3-way speakers use dedicated drivers for bass, midrange, and treble, reducing crossover interference. Coaxial designs (KEF Uni-Q) mount the tweeter inside the woofer for better time-alignment.
- Crossover: Bowers & Wilkins 603 S3-OAK at — vs ELAC CONCENTRO-2.0 at 2700Hz
Which Should You Choose?
Choose ELAC CONCENTRO-2.0 if you want:
- + 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 603 S3-OAK and ELAC CONCENTRO-2.0 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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