JBL STAGEA120P vs SVS SB-4000-PIANO-GLOSS-BLACK
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Choosing between the JBL STAGEA120P and SVS SB-4000-PIANO-GLOSS-BLACK? Both compete in the Subwoofer 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 JBL STAGEA120P scores higher in form factor, room fit. The SVS SB-4000-PIANO-GLOSS-BLACK leads in audio quality, volume/SPL. They score similarly in value.
Key subwoofer differences include driver sizes of 12" vs 13", and ported vs sealed enclosure designs, and the SVS SB-4000-PIANO-GLOSS-BLACK digs deeper at 19 Hz (-3dB) vs 32 Hz. Room size and placement will significantly affect real-world bass performance.
These two Subwoofer 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 Size | 12" | 13" |
| RMS Watts | 250W | 1200W |
| -3dB Extension | 32Hz | 19Hz |
| -6dB Extension | — | — |
| Phase Control | Yes | Yes |
| LFE Input | Yes | Yes |
| Line Input | No | Yes |
| XLR Input | No | Yes |
| App Control | No | Yes |
| Passive | No | No |
| Enclosure | ported | sealed |
Key Differences
- RMS Watts: JBL STAGEA120P at 250W vs SVS SB-4000-PIANO-GLOSS-BLACK at 1200W
- Enclosure: JBL STAGEA120P at ported vs SVS SB-4000-PIANO-GLOSS-BLACK at sealed
- -3dB Extension: JBL STAGEA120P at 32Hz vs SVS SB-4000-PIANO-GLOSS-BLACK at 19Hz
- Driver Size: JBL STAGEA120P at 12" vs SVS SB-4000-PIANO-GLOSS-BLACK at 13"
- Line Input: JBL STAGEA120P at No vs SVS SB-4000-PIANO-GLOSS-BLACK at Yes
Which Should You Choose?
Choose SVS SB-4000-PIANO-GLOSS-BLACK if you want:
- + larger driver
- + better rms watts
- + better -3db extension
See Where These Rank
Check our editorial rankings to see how JBL STAGEA120P and SVS SB-4000-PIANO-GLOSS-BLACK compare to the rest of the field.
Best Subwoofer RankingsRelated Calculators
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