Short answer: the Rythmik F12. It ranks #20 of 145 subwoofers by sound quality at $1439; the JBL HDI-1200P ranks #24 and costs $2310, which makes this an easy call rather than a real tradeoff.
What the Rythmik F12 offers: Sealed 12-inch servo with 370W RMS offers excellent value. Very musical and can disappear in small rooms. Digs to 14Hz with excellent build quality and well-braced cabinet. Watch for: No detailed measurement caveats are currently recorded.
What the JBL HDI-1200P offers: Dual-ported 1000W 12-inch high-excursion cone. Symmetric Field motor design controls stray magnetic flux for refined response. Plays very clean with super low distortion (<1% THD) down to tuning frequency. Dual down-firing ports extend low-end with 28-150Hz frequency response. Adjustable crossover (50-150Hz) and phase control for seamless integration. Compact ~17-inch cube with automotive-gloss or furniture-grade finishes. Watch for: No detailed measurement caveats are currently recorded.
Buy the Rythmik F12. It ranks higher for sound quality than the JBL HDI-1200P and costs less, so the other one has nothing left to offer.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| Rythmik F12 | JBL HDI-1200P | |
|---|---|---|
| Price | $1,120 | $2,310 |
| Ranked | #20 of 145 in Medium Home Subwoofers (30-75 lbs) | #24 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 20 Hz | 103.6 dB | - |
| Output SPL at 25 Hz | 106.7 dB | 93.2 dB |
| Output SPL at 31.5 Hz | 113.5 dB | 109.5 dB |
| Output SPL at 40 Hz | 118.3 dB | 115.6 dB |
| Output SPL at 50 Hz | 119.1 dB | 119.1 dB |
| Output SPL at 63 Hz | 120.4 dB | 119.0 dB |
| Output SPL at 80 Hz | 119.6 dB | 114.9 dB |
| CEA-2010-A Average (40-80Hz) | 119.3 dB | 117.2 dB |
| Dimensions | 15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm) | 16.9"H x 16.3"W x 17.8"D (430.5 x 414.0 x 451.4 mm) |
| Weight | 75 lbs (34.0 kg) | 70.8 lbs (32.1 kg) |
| Warranty | 5/3 | 5 |
| Cabinet Color | black | black, wood |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Audioholics |
| Amplifier Power | 370W RMS | 1000W RMS |
| Frequency Response | 14Hz extension | 28-150Hz (-6dB) |
| Drivers | 12" (305mm) driver | 12" (305mm) driver |
| Output SPL at 16 Hz | 101.0 dB | - |
| Output SPL at 100 Hz | - | 115.4 dB |
| Output SPL at 125 Hz | - | 117.2 dB |
| Crossover Frequency | - | 50-150Hz, 24dB/octave |
| Inputs | - | RCA (unbalanced) and XLR (balanced) |
| Features | - | Single-band parametric EQ |
Related Speaker Comparisons
How Rythmik F12 compares with other leading options:
- JTR Speakers Captivator 212PRO vs Rythmik F12
- MartinLogan Dynamo 1600X vs Rythmik F12
- HSU Research ULS-15 MK2 vs Rythmik F12
- Monoprice SW-12 vs Rythmik F12
- Rythmik F12 vs Power Sound Audio (PSA) XV15
Prices on this page were last checked September 14, 2026 at 1:47 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Rythmik F12: $1,120 Rythmik Audio eBay
Pros: Sealed 12-inch servo with 370W RMS offers excellent value. Very musical and can disappear in small rooms. Digs to 14Hz with excellent build quality and well-braced cabinet.
Full Rythmik F12 review and specifications →
| Amplifier Power | 370W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 119.3 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 15.7"H x 15.7"W x 17"D (400.0 x 400.0 x 431.8 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | sealed |
| Frequency Response | 14Hz extension |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 101.0 dB |
| Output SPL at 20 Hz | 103.6 dB |
| Output SPL at 25 Hz | 106.7 dB |
| Output SPL at 31.5 Hz | 113.5 dB |
| Output SPL at 40 Hz | 118.3 dB |
| Output SPL at 50 Hz | 119.1 dB |
| Output SPL at 63 Hz | 120.4 dB |
| Output SPL at 80 Hz | 119.6 dB |
| Warranty | 5/3 |
| Weight | 75 lbs (34.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
JBL HDI-1200P: $2,310 eBay
Pros: Dual-ported 1000W 12-inch high-excursion cone. Symmetric Field motor design controls stray magnetic flux for refined response. Plays very clean with super low distortion (<1% THD) down to tuning frequency. Dual down-firing ports extend low-end with 28-150Hz frequency response. Adjustable crossover (50-150Hz) and phase control for seamless integration. Compact ~17-inch cube with automotive-gloss or furniture-grade finishes.
Full JBL HDI-1200P review and specifications →
| Amplifier Power | 1000W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 117.2 dB |
| Cabinet Color | black, wood |
| Country | United States |
| Crossover Frequency | 50-150Hz, 24dB/octave |
| Dimensions | 16.9"H x 16.3"W x 17.8"D (430.5 x 414.0 x 451.4 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, bottom |
| Features | Single-band parametric EQ |
| Frequency Response | 28-150Hz (-6dB) |
| Inputs | RCA (unbalanced) and XLR (balanced) |
| Measurement Source | Audioholics |
| Output SPL at 25 Hz | 93.2 dB |
| Output SPL at 31.5 Hz | 109.5 dB |
| Output SPL at 40 Hz | 115.6 dB |
| Output SPL at 50 Hz | 119.1 dB |
| Output SPL at 63 Hz | 119.0 dB |
| Output SPL at 80 Hz | 114.9 dB |
| Output SPL at 100 Hz | 115.4 dB |
| Output SPL at 125 Hz | 117.2 dB |
| Warranty | 5 |
| Weight | 70.8 lbs (32.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- JBL HDI-1200P vs KRK Systems 12S
- JBL HDI-1200P vs Starke Sound SW15
- JBL HDI-1200P vs JL Audio E112
- JBL HDI-1200P vs Power Sound Audio (PSA) XS15SE
- JBL HDI-1200P vs SVS SB-3000
- JBL HDI-1200P vs Monoprice SW-15
- JBL HDI-1200P vs HSU Research ULS-15 MK2
- JBL HDI-1200P vs MartinLogan Dynamo 1600X
- See all 10 comparisons


