Short answer: both are discontinued, so this only matters if you are buying used. Used, the Klipsch HD Theater 600 is the better pick: it ranks #35 of 73 subwoofers by sound quality (rated 3.3/5), against #45 (rated 3.2/5) for the Klipsch R-10SW. If you want one new, the Klipsch Reference R-101SW replaces the Klipsch R-10SW and is rated 3.2/5 at $379.99.
Why pick the Klipsch HD Theater 600: A discontinued compact ported 8 inch subwoofer that adds midbass support to a small home theater system. The catch: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure.
The case for the Klipsch R-10SW: A discontinued ported 10 inch subwoofer that adds midbass support to a modest system at a moderate price. Watch for: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure.
Buy the Klipsch HD Theater 600 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, buy the Klipsch Reference R-101SW, which replaces the Klipsch R-10SW.
Looking for alternatives? See the complete Subwoofers rankings.
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Specifications Side By Side
| Klipsch HD Theater 600 | Klipsch R-10SW | |
|---|---|---|
| Price | $399 Discontinued | $399 Discontinued |
| Ranked | #35 of 73 in Small Home Subwoofers (Under 30 lbs) | #45 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, rear | ported, rear |
| 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 | 103.0 dB |
| Output SPL at 50 Hz | 107.6 dB | 106.5 dB |
| Output SPL at 63 Hz | 112.1 dB | 109.0 dB |
| CEA-2010-A Average (40-80Hz) | 108.2 dB (avg of 3/4 bands) | 106.8 dB |
| Dimensions | 13.9”H x 12.5”W x 12.5”D (353.1 x 317.5 x 317.5 mm) | 14”H x 12.5”W x 15.7”D (355.6 x 317.5 x 398.8 mm) |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | ErinsAudioCorner |
| Weight | 17 lbs (7.7 kg) | 25.6 lbs (11.6 kg) |
| Drivers | 8” (203mm) driver | 10” (254mm) driver |
| Output SPL at 80 Hz | - | 108.8 dB |
| Output SPL at 100 Hz | - | 107.0 dB |
| Output SPL at 125 Hz | - | 104.1 dB |
| Warranty | - | 5/2 |
| Cabinet Color | - | black |
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