Coastal Source 216B18SW15 vs JBL STAGEA120P
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Choosing between the Coastal Source 216B18SW15 and JBL STAGEA120P? Both compete in the Subwoofer 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 Coastal Source 216B18SW15 scores higher in audio quality, volume/SPL. The JBL STAGEA120P leads in form factor, room fit. They score similarly in value.
Subwoofer performance depends heavily on room size, placement, and whether you prioritize output volume or low-frequency extension. The specs below provide the starting point.
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" |
| RMS Watts | — | 250W |
| -3dB Extension | — | 32Hz |
| -6dB Extension | — | — |
| Phase Control | — | Yes |
| LFE Input | — | Yes |
| Line Input | — | No |
| XLR Input | — | No |
| App Control | — | No |
| Passive | — | No |
| Enclosure | — | ported |
Key Differences
- Enclosure: Coastal Source 216B18SW15 at — vs JBL STAGEA120P at ported
- Driver Size: Coastal Source 216B18SW15 at — vs JBL STAGEA120P at 12"
- RMS Watts: Coastal Source 216B18SW15 at — vs JBL STAGEA120P at 250W
- -3dB Extension: Coastal Source 216B18SW15 at — vs JBL STAGEA120P at 32Hz
- Phase Control: Coastal Source 216B18SW15 at — vs JBL STAGEA120P at Yes
See Where These Rank
Check our editorial rankings to see how Coastal Source 216B18SW15 and JBL STAGEA120P compare to the rest of the field.
Best Subwoofer Rankings
