Short answer: both are discontinued, and they are rated the same for sound quality (#33 and #31 of 212 subwoofers). Either one is only an option used, so choose on condition and price. If you want one new, the KRK S12.4 replaces the KRK Systems 12S and is rated 3.9/5 at $649.
Buy the KRK Systems 12S or the Starke Sound SW15, whichever you find used in better condition; both are discontinued. For a new speaker, buy the KRK S12.4, which replaces the KRK Systems 12S.
Still deciding? The full Subwoofers rankings cover every ranked option.
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Specifications Side By Side
| KRK Systems 12S | Starke Sound SW15 | |
|---|---|---|
| Price | $899 Discontinued | $1,075 Discontinued |
| Ranked | #33 of 212 in Medium Home Subwoofers (30-75 lbs) | #31 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 20 Hz | 92.8 dB | 98.0 dB |
| Output SPL at 25 Hz | 99.1 dB | 104.6 dB |
| Output SPL at 31.5 Hz | 111.0 dB | 110.0 dB |
| Output SPL at 40 Hz | 115.6 dB | 114.6 dB |
| Output SPL at 50 Hz | 118.7 dB | 118.4 dB |
| Output SPL at 63 Hz | 118.2 dB | 119.1 dB |
| Output SPL at 80 Hz | 115.8 dB | 117.2 dB |
| Output SPL at 100 Hz | 113.6 dB | 115.2 dB |
| Output SPL at 125 Hz | 110.6 dB | 113.8 dB |
| CEA-2010-A Average (40-80Hz) | 117.1 dB | 117.3 dB |
| Dimensions | 18.1”H x 15.9”W x 22.6”D (460.0 x 404.9 x 575.1 mm) | 17.3”H x 16.5”W x 18.9”D (439.4 x 419.1 x 480.1 mm) |
| Weight | 66.6 lbs (30.2 kg) | 54.9 lbs (24.9 kg) |
| Warranty | 3 | - |
| Country | United States | United States |
| Measurement Source | Data-bass | Audioholics |
| Frequency Response | 32-139Hz | 14-240Hz, ±3dB |
| Amplifier Power | 240W RMS | 450W RMS / 900W peak |
| Drivers | 12” (305mm) driver | 15” (381mm) driver |
| Inputs | XLR (stereo, balanced), TRS (stereo), RCA (stereo) | 1 XLR (balanced), 3 RCA (unbalanced) |
| XLR Input | Yes | Yes |
| RCA Input | Yes | Yes |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Output SPL at 12.5 Hz | - | 86.0 dB |
| Output SPL at 15 Hz | - | 90.8 dB |
| Cabinet Color | - | black |
| Crossover Frequency | - | 50-200Hz adjustable |
| Phase Control | - | 0°-180° adjustable |
| Features | - | Sealed subwoofer, outputs: XLR |
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