Short answer: the ELAC IW-S10EQ in-wall. It ranks #27 of 73 subwoofers by sound quality (rated 3.4/5) at $2,199 and is still sold new; the Klipsch HD Theater 600 ranks #35 (rated 3.3/5) and is discontinued, so it is only an option used.
The case for the ELAC IW-S10EQ in-wall: A 10 inch in-wall subwoofer with adjustable EQ for a flush install where a floor cabinet will not fit. The catch: Requires in-wall installation, limited output vs standalone cabinets, and space constraints for placement.
Why pick the Klipsch HD Theater 600: A discontinued compact ported 8 inch subwoofer that adds midbass support to a small home theater system. Watch for: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure.
Buy the ELAC IW-S10EQ in-wall. It is rated higher for sound quality and still sold new, while the Klipsch HD Theater 600 is discontinued.
Looking for alternatives? See the complete Subwoofers rankings.
A 10 inch in-wall subwoofer with adjustable EQ for a flush install where a floor cabinet will not fit.
A discontinued compact ported 8 inch subwoofer that adds midbass support to a small home theater system.
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Specifications Side By Side
| ELAC IW-S10EQ in-wall | Klipsch HD Theater 600 | |
|---|---|---|
| Price | $2,199.00 | $399 Discontinued |
| Ranked | #27 of 73 in Small Home Subwoofers (Under 30 lbs) | #35 of 73 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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