KEF SP4058B1AA vs Klipsch RP-504CII
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Choosing between the KEF SP4058B1AA and Klipsch RP-504CII? Both compete in the Speaker (Center) segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The KEF SP4058B1AA scores higher in form factor, room fit. The Klipsch RP-504CII leads in audio quality, volume/SPL. They score similarly in value.
For speaker performance, the Klipsch RP-504CII is more sensitive at 96 dB vs 88 dB, and impedances of 4Ω vs 8Ω. Room acoustics and amplifier pairing will also significantly affect the result.
These two Speaker (Center) options trade wins across different dimensions. The right choice depends on which specs matter most for your room and listening preferences — review the detailed table below to decide.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | 3-way | 2-way |
| Sensitivity | 88dB | 96dB |
| Impedance | 4Ω | 8Ω |
| Freq Response Low | 65Hz | 50Hz |
| Freq Response High | 28000Hz | 25000Hz |
| Crossover | — | 1950Hz |
| Bi-Amp Capable | No | No |
| Rec. Power Min | 15W | 15W |
| Rec. Power Max | 250W | — |
| 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 | 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: KEF SP4058B1AA at 4Ω vs Klipsch RP-504CII at 8Ω
- Driver Config: KEF SP4058B1AA at 3-way vs Klipsch RP-504CII at 2-way
- Freq Response Low: KEF SP4058B1AA at 65Hz vs Klipsch RP-504CII at 50Hz
- Freq Response High: KEF SP4058B1AA at 28000Hz vs Klipsch RP-504CII at 25000Hz
- Sensitivity: KEF SP4058B1AA at 88dB vs Klipsch RP-504CII at 96dB
Which Should You Choose?
Choose Klipsch RP-504CII if you want:
- + better sensitivity
- + better freq response low
See Where These Rank
Check our editorial rankings to see how KEF SP4058B1AA and Klipsch RP-504CII compare to the rest of the field.
Best Speaker (Center) Rankings
