Short answer: the ELAC IW-S10EQ in-wall if sound quality matters most, the Klipsch HD Theater 600 if price matters most. The ELAC IW-S10EQ in-wall ranks #21 of 48 subwoofers at $2199. The Klipsch HD Theater 600 ranks #25 at $399, $1800 cheaper.
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 Klipsch HD Theater 600 offers: Independent CEA-2010 testing records 108.2 dB (avg of 3/4 bands) through 40-80 Hz. The ported, rear enclosure with 8” (203mm) driver is a compact way to add useful midbass support to a modest system. Watch for: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure. The 353.1H x 317.5W x 317.5D mm cabinet and 7.7 kg mass still need careful placement and calibration.
Buy the ELAC IW-S10EQ in-wall if sound quality matters more than the price. Buy the Klipsch HD Theater 600 if the price matters more than sound quality.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| ELAC IW-S10EQ in-wall | Klipsch HD Theater 600 | |
|---|---|---|
| Price | $2,199.00 | $399 |
| Ranked | #21 of 48 in Small Home Subwoofers (Under 30 lbs) | #25 of 48 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | in-wall | ported, rear |
| Output SPL at 20 Hz | 96.2 dB | - |
| Output SPL at 25 Hz | 103.3 dB | 87.1 dB |
| Output SPL at 31.5 Hz | 103.9 dB | 98.4 dB |
| Output SPL at 40 Hz | 106.3 dB | 104.9 dB |
| Output SPL at 50 Hz | 109.0 dB | 107.6 dB |
| Output SPL at 63 Hz | 110.5 dB | 112.1 dB |
| Output SPL at 80 Hz | 113.9 dB | - |
| CEA-2010-A Average (40-80Hz) | 109.9 dB | 108.2 dB (avg of 3/4 bands) |
| Dimensions | 12.2"H x 12.2"W x 4.2"D (309.9 x 309.9 x 107.4 mm) | 13.9"H x 12.5"W x 12.5"D (353.1 x 317.5 x 317.5 mm) |
| Weight | 14.3 lbs (6.5 kg) | 17 lbs (7.7 kg) |
| Warranty | 3/1 | - |
| Cabinet Color | black | - |
| Country | Germany | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 10" (254mm) driver | 8" (203mm) driver |
| Output SPL at 16 Hz | 92.0 dB | - |
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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 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
- ELAC IW-S10EQ in-wall vs SVS SB-1000 PRO
- See all 12 comparisons
Klipsch HD Theater 600: $399 eBay
Pros: Independent CEA-2010 testing records 108.2 dB (avg of 3/4 bands) through 40-80 Hz. The ported, rear enclosure with 8” (203mm) driver is a compact way to add useful midbass support to a modest system.
Cons: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure. The 353.1H x 317.5W x 317.5D mm cabinet and 7.7 kg mass still need careful placement and calibration.
Full Klipsch HD Theater 600 review and specifications →
| CEA-2010-A Average (40-80Hz) | 108.2 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 13.9"H x 12.5"W x 12.5"D (353.1 x 317.5 x 317.5 mm) |
| Drivers | 8" (203mm) driver |
| Enclosure | ported, rear |
| Measurement Source | Brent Butterworth |
| Output SPL at 25 Hz | 87.1 dB |
| Output SPL at 31.5 Hz | 98.4 dB |
| Output SPL at 40 Hz | 104.9 dB |
| Output SPL at 50 Hz | 107.6 dB |
| Output SPL at 63 Hz | 112.1 dB |
| Weight | 17 lbs (7.7 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
- Klipsch HD Theater 600 vs ELAC SUB1010
- Klipsch HD Theater 600 vs MartinLogan Dynamo 700w
- Klipsch HD Theater 600 vs Polk Audio PSW10
- Klipsch HD Theater 600 vs Monoprice Premium Select 8in 200-Watt
- Klipsch HD Theater 600 vs SVS 3000 Micro
- Klipsch HD Theater 600 vs Definitive Technology SuperCube 2000
- Klipsch HD Theater 600 vs SVS SB-1000 PRO
- Klipsch HD Theater 600 vs Bowers & Wilkins (B&W) PV1D
- See all 9 comparisons