JBL STAGE A125C vs KEF SP4036BA
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Choosing between the JBL STAGE A125C and KEF SP4036BA? 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 JBL STAGE A125C scores higher in audio quality, volume/SPL, room fit. The KEF SP4036BA leads in form factor. They score similarly in value.
For speaker performance, the JBL STAGE A125C is more sensitive at 88 dB vs 85 dB, and impedances of 6Ω vs 8Ω. Room acoustics and amplifier pairing will also significantly affect the result.
The JBL STAGE A125C holds an advantage across more performance dimensions, but the KEF SP4036BA 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.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Config | 2-way | 2-way |
| Sensitivity | 88dB | 85dB |
| Impedance | 6Ω | 8Ω |
| Freq Response Low | 75Hz | 79Hz |
| Freq Response High | 40000Hz | 28000Hz |
| Crossover | — | 2100Hz |
| Bi-Amp Capable | No | No |
| Family ID | — | KEF-LS50 |
| Rec. Power Min | 20W | 40W |
| Rec. Power Max | 150W | 100W |
| Mounting Type | — | 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
- Rec. Power Min: JBL STAGE A125C at 20W vs KEF SP4036BA at 40W
- Rec. Power Max: JBL STAGE A125C at 150W vs KEF SP4036BA at 100W
- Freq Response High: JBL STAGE A125C at 40000Hz vs KEF SP4036BA at 28000Hz
- Impedance: JBL STAGE A125C at 6Ω vs KEF SP4036BA at 8Ω
- Freq Response Low: JBL STAGE A125C at 75Hz vs KEF SP4036BA at 79Hz
Which Should You Choose?
Choose JBL STAGE A125C if you want:
- + better sensitivity
- + better freq response low
See Where These Rank
Check our editorial rankings to see how JBL STAGE A125C and KEF SP4036BA compare to the rest of the field.
Best Speaker (Center) Rankings
