Ascend Acoustics SIERRA-LX-CENTER vs Canton A-45-CS
Prices updated hourly. Check retailer for current availability.
Choosing between the Ascend Acoustics SIERRA-LX-CENTER and Canton A-45-CS? Both compete in the Speaker (Center) 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 Ascend Acoustics SIERRA-LX-CENTER scores higher in value, audio quality, volume/SPL, 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 Ascend Acoustics SIERRA-LX-CENTER holds an advantage across more performance dimensions, but the Canton A-45-CS 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 Ascend Acoustics SIERRA-LX-CENTER is the stronger choice — it leads in 5 of 5 scored dimensions. The Canton A-45-CS makes more sense if budget is the primary constraint.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Ascend Acoustics SIERRA-LX-CENTER
Canton A-45-CS
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | 2-way | 3-way |
| Sensitivity | 87dB | 87dB |
| Impedance | 8Ω | 4Ω |
| Freq Response Low | 43Hz | 26Hz |
| Freq Response High | 23000Hz | 40000Hz |
| Crossover | — | 300Hz |
| Bi-Amp Capable | No | No |
| Rec. Power Min | 3W | — |
| Rec. Power Max | 350W | — |
| Mounting Type | center | center |
| 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 | Yes |
| 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 | Bamboo | — |
| Grille Material | — | — |
| Bracket Type | — | — |
| Bracket Included | No | No |
| Dual Voice Coil (SDI) | No | No |
Key Differences
- Impedance: Ascend Acoustics SIERRA-LX-CENTER at 8Ω vs Canton A-45-CS 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 High: Ascend Acoustics SIERRA-LX-CENTER at 23000Hz vs Canton A-45-CS at 40000Hz
- Freq Response Low: Ascend Acoustics SIERRA-LX-CENTER at 43Hz vs Canton A-45-CS at 26Hz. Determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support.
- Driver Config: Ascend Acoustics SIERRA-LX-CENTER at 2-way vs Canton A-45-CS at 3-way. 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: Ascend Acoustics SIERRA-LX-CENTER at — vs Canton A-45-CS at 300Hz
Which Should You Choose?
Choose Canton A-45-CS 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 Ascend Acoustics SIERRA-LX-CENTER and Canton A-45-CS compare to the rest of the field.
Best Speaker (Center) 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.
Related Comparisons
CinemaConfig may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. See our affiliate disclosure.