Short answer: the Rythmik L12. It ranks #25 of 212 subwoofers by sound quality, rated 4.0/5, at $791; the REL Acoustics HT/1205 MKII ranks #45, rated 3.9/5, and costs $899, so there is not much of a tradeoff to weigh.
The case for the Rythmik L12: Rythmik’s least expensive subwoofer: a sealed 12” with Rythmik’s Direct Servo feedback, which lowers distortion and compression, and a 300W Hypex amplifier with one band of parametric EQ. Watch for: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured sealed Rythmik F12 (119.3dB in the 40 to 80Hz CEA-2010 bands) and placed below it, since the L12 has a less powerful amplifier.
What the REL Acoustics HT/1205 MKII does well: High-output 12-inch CarbonGlas driver paired with a 500W RMS NextGen5 Class D amplifier in a compact sealed cabinet. The tradeoff: Lacks high-level input connectivity and digital parametric EQ filters.
Buy the Rythmik L12. It is rated higher for sound quality than the REL Acoustics HT/1205 MKII and costs less, so only choose the other one for a particular feature it does better.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Rythmik L12 3.7 to 4.1; REL Acoustics HT/1205 MKII 3.7 to 4.1). Treat this verdict as provisional.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Rythmik L12 | REL Acoustics HT/1205 MKII | |
|---|---|---|
| Price | $791.00 | $899.00 |
| Ranked | #25 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated | #45 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated |
| Weight | 58 lbs (26.3 kg) | 43.2 lbs (19.6 kg) |
| Dimensions | 14”H x 14”W x 15.5”D (356 x 356 x 394 mm) | 16.3”H x 15.2”W x 17.2”D (413 x 387 x 438 mm) |
| Country | United States | United Kingdom |
| Warranty | 5/3 | 3 |
| Enclosure | sealed | sealed |
| Drivers | 12” servo-controlled woofer | 12” (300mm) CarbonGlas cone, inverted carbon fiber dust cap |
| Amplifier Power | 300W RMS Hypex | 500W RMS (NextGen5 Class D) |
| Frequency Response | - | 22Hz at -6dB (manufacturer specified) |
Related Speaker Comparisons
More worthwhile head-to-heads for Rythmik L12:
- Rythmik L12 vs KRK S12.4
- Rythmik L12 vs HSU Research VTF-2 MK5
- KRK S12.4 vs REL Acoustics HT/1205 MKII
- REL Acoustics HT/1205 MKII vs Polk Audio Signature Elite ES12 Subwoofer
- REL Acoustics HT/1205 MKII vs Klipsch RP-1200SW
Prices on this page were last checked October 11, 2026 at 4:59 PM 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Rythmik L12: $791.00 Estimated Rythmik Audio eBay
Same family: the Rythmik LV12 (larger subwoofer, ranked higher, rated 4.2/5).
Pros: Rythmik’s least expensive subwoofer: a sealed 12” with Rythmik’s Direct Servo feedback, which lowers distortion and compression, and a 300W Hypex amplifier with one band of parametric EQ. Sold direct with shipping included.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured sealed Rythmik F12 (119.3dB in the 40 to 80Hz CEA-2010 bands) and placed below it, since the L12 has a less powerful amplifier.
Full Rythmik L12 review and specifications →
| Released | May 2020 (6 years ago) |
|---|---|
| Amplifier Power | 300W RMS Hypex |
| Country | United States |
| Dimensions | 14”H x 14”W x 15.5”D (356 x 356 x 394 mm) |
| Drivers | 12” servo-controlled woofer |
| Enclosure | sealed |
| Warranty | 5/3 |
| Weight | 58 lbs (26.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
REL Acoustics HT/1205 MKII: $899.00 Estimated Amazon eBay
Same family: the REL Acoustics HT/1003 MKII (smaller subwoofer, ranked lower, estimated 3.7/5) and the REL Acoustics HT/1510 Predator II (larger subwoofer, rated 4.1/5).
Pros: High-output 12-inch CarbonGlas driver paired with a 500W RMS NextGen5 Class D amplifier in a compact sealed cabinet. Provides deep bass extension down to 22Hz (-6dB) and strong dynamic impact for dedicated cinema setups.
Cons: Lacks high-level input connectivity and digital parametric EQ filters. As a sealed design, infrasonic output below 20Hz trails similarly priced ported alternatives.
Full REL Acoustics HT/1205 MKII review and specifications →
| Released | Oct 2022 (4 years ago) |
|---|---|
| Amplifier Power | 500W RMS (NextGen5 Class D) |
| Country | United Kingdom |
| Dimensions | 16.3”H x 15.2”W x 17.2”D (413 x 387 x 438 mm) |
| Drivers | 12” (300mm) CarbonGlas cone, inverted carbon fiber dust cap |
| Enclosure | sealed |
| Frequency Response | 22Hz at -6dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 43.2 lbs (19.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons