Short answer: the Onkyo SKW-204. It ranks #3 of 48 subwoofers by sound quality at $299; the ELAC IW-S10EQ in-wall ranks #21 and costs $2199, which makes this an easy call rather than a real tradeoff.
What the ELAC IW-S10EQ in-wall offers: 10-inch in-wall driver delivers 103.9dB CEA-2010-A average with EQ-adjustable response for flush installation where a floor-standing cabinet isn’t an option. Watch for: Requires in-wall installation, limited output vs standalone cabinets, and space constraints for placement.
What the Onkyo SKW-204 offers: Independent CEA-2010 testing records 77.3 dB at 20 Hz and 115.9 dB through 40-80 Hz. The ported, front enclosure with 10” (254mm) driver delivers substantial upper-bass output for movie effects and music. Watch for: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 472.9H x 274.6W x 428.5D mm cabinet and 11.8 kg mass still require deliberate placement and calibration.
Buy the Onkyo SKW-204. It ranks higher for sound quality than the ELAC IW-S10EQ in-wall and costs less, so there is no real case for the other one.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| ELAC IW-S10EQ in-wall | Onkyo SKW-204 | |
|---|---|---|
| Price | $2,199.00 | $299 Discontinued |
| Ranked | #21 of 48 in Small Home Subwoofers (Under 30 lbs) | #3 of 48 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | in-wall | ported, front |
| Output SPL at 20 Hz | 96.2 dB | 77.3 dB |
| Output SPL at 25 Hz | 103.3 dB | 90.1 dB |
| Output SPL at 31.5 Hz | 103.9 dB | 103.3 dB |
| Output SPL at 40 Hz | 106.3 dB | 108.7 dB |
| Output SPL at 50 Hz | 109.0 dB | 114.0 dB |
| Output SPL at 63 Hz | 110.5 dB | 119.6 dB |
| Output SPL at 80 Hz | 113.9 dB | 121.4 dB |
| CEA-2010-A Average (40-80Hz) | 109.9 dB | 115.9 dB |
| Dimensions | 12.2"H x 12.2"W x 4.2"D (309.9 x 309.9 x 107.4 mm) | 18.6"H x 10.8"W x 16.9"D (472.9 x 274.6 x 428.5 mm) |
| Weight | 14.3 lbs (6.5 kg) | 26 lbs (11.8 kg) |
| Warranty | 3/1 | - |
| Cabinet Color | black | black |
| Country | Germany | Japan |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 10" (254mm) driver | 10" (254mm) driver |
| Output SPL at 16 Hz | 92.0 dB | - |
| Discontinued | - | Yes |
Related Speaker Comparisons
More top alternatives to Onkyo SKW-204:
- Onkyo SKW-204 vs SVS SB-1000
- SVS SB-1000 PRO vs Onkyo SKW-204
- Definitive Technology SuperCube 2000 vs Onkyo SKW-204
- SVS 3000 Micro vs Onkyo SKW-204
- Velodyne Acoustics SPL-1200 Series II vs Onkyo SKW-204
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
ELAC IW-S10EQ in-wall: $2,199.00 Crutchfield eBay
Pros: 10-inch in-wall driver delivers 103.9dB CEA-2010-A average with EQ-adjustable response for flush installation where a floor-standing cabinet isn’t an option.
Cons: Requires in-wall installation, limited output vs standalone cabinets, and space constraints for placement.
Full ELAC IW-S10EQ in-wall review and specifications →
| CEA-2010-A Average (40-80Hz) | 109.9 dB |
|---|---|
| Cabinet Color | black |
| Country | Germany |
| Dimensions | 12.2"H x 12.2"W x 4.2"D (309.9 x 309.9 x 107.4 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | in-wall |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 92.0 dB |
| Output SPL at 20 Hz | 96.2 dB |
| Output SPL at 25 Hz | 103.3 dB |
| Output SPL at 31.5 Hz | 103.9 dB |
| Output SPL at 40 Hz | 106.3 dB |
| Output SPL at 50 Hz | 109.0 dB |
| Output SPL at 63 Hz | 110.5 dB |
| Output SPL at 80 Hz | 113.9 dB |
| Warranty | 3/1 |
| Weight | 14.3 lbs (6.5 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
- ELAC IW-S10EQ in-wall vs MartinLogan Dynamo 700w
- ELAC IW-S10EQ in-wall vs GoldenEar ForceField 3
- ELAC IW-S10EQ in-wall vs Polk Audio PSW10
- ELAC IW-S10EQ in-wall vs Klipsch HD Theater 600
- ELAC IW-S10EQ in-wall vs ELAC SUB1010
- ELAC IW-S10EQ in-wall vs Monoprice Premium Select 8in 200-Watt
- ELAC IW-S10EQ in-wall vs Velodyne Acoustics SPL-1200 Series II
- ELAC IW-S10EQ in-wall vs SVS 3000 Micro
- See all 12 comparisons
Onkyo SKW-204: $299 Discontinued eBay
Pros: Independent CEA-2010 testing records 77.3 dB at 20 Hz and 115.9 dB through 40-80 Hz. The ported, front enclosure with 10” (254mm) driver delivers substantial upper-bass output for movie effects and music.
Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 472.9H x 274.6W x 428.5D mm cabinet and 11.8 kg mass still require deliberate placement and calibration. Discontinued.
Full Onkyo SKW-204 review and specifications →
| CEA-2010-A Average (40-80Hz) | 115.9 dB |
|---|---|
| Cabinet Color | black |
| Country | Japan |
| Dimensions | 18.6"H x 10.8"W x 16.9"D (472.9 x 274.6 x 428.5 mm) |
| Discontinued | Yes |
| Drivers | 10" (254mm) driver |
| Enclosure | ported, front |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 77.3 dB |
| Output SPL at 25 Hz | 90.1 dB |
| Output SPL at 31.5 Hz | 103.3 dB |
| Output SPL at 40 Hz | 108.7 dB |
| Output SPL at 50 Hz | 114.0 dB |
| Output SPL at 63 Hz | 119.6 dB |
| Output SPL at 80 Hz | 121.4 dB |
| Weight | 26 lbs (11.8 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
- Onkyo SKW-204 vs SVS SB-1000 PRO
- Onkyo SKW-204 vs Definitive Technology SuperCube 2000
- Onkyo SKW-204 vs SVS SB-1000
- Onkyo SKW-204 vs SVS 3000 Micro
- Onkyo SKW-204 vs Velodyne Acoustics SPL-1200 Series II
- Onkyo SKW-204 vs Polk Audio PSW10
- Onkyo SKW-204 vs GoldenEar ForceField 3
- Onkyo SKW-204 vs MartinLogan Dynamo 700w
- See all 10 comparisons