Short answer: the Klipsch R-10SW, if you are buying new. The Klipsch HD Theater 600 ranks higher than it (#25 vs #32 of 48 subwoofers, 3.3/5 vs 3.2/5) but is discontinued, so only consider it used; the Klipsch R-10SW is still sold new at $399.
Why pick the Klipsch HD Theater 600: Independent CEA-2010 testing records 108.2 dB (avg of 3/4 bands) through 40-80 Hz. 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: Independent CEA-2010 testing records 106.8 dB through 40-80 Hz. Watch for: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure.
Buy the Klipsch R-10SW, since the Klipsch HD Theater 600 is discontinued and only worth hunting down used.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Klipsch HD Theater 600 | Klipsch R-10SW | |
|---|---|---|
| Price | $399 Discontinued | $399 |
| Ranked | #25 of 48 in Small Home Subwoofers (Under 30 lbs) | #32 of 48 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 |
| Discontinued | Yes | - |
| 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 |
Related Speaker Comparisons
More top alternatives to Klipsch HD Theater 600:
- SVS SB-1000 PRO vs Klipsch HD Theater 600
- Definitive Technology SuperCube 2000 vs Klipsch HD Theater 600
- SVS 3000 Micro vs Klipsch HD Theater 600
- Klipsch Flexus Sub 100 vs Klipsch HD Theater 600
- Polk Audio PSW10 vs Klipsch HD Theater 600
Prices on this page were last checked September 26, 2026 at 11:14 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.
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The Two Speakers In Full
Klipsch HD Theater 600: $399 Discontinued 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. Discontinued.
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) |
| Discontinued | Yes |
| 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 Monitor Audio BRW10
- Klipsch HD Theater 600 vs ELAC IW-S10EQ in-wall
- 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 Klipsch Flexus Sub 100
- Klipsch HD Theater 600 vs SVS 3000 Micro
- See all 12 comparisons
Klipsch R-10SW: $399 eBay
Pros: Independent CEA-2010 testing records 106.8 dB through 40-80 Hz. The ported, rear enclosure with 10” (254mm) 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 355.6H x 317.5W x 398.8D mm cabinet and 11.6 kg mass still need careful placement and calibration.
Full Klipsch R-10SW review and specifications →
| CEA-2010-A Average (40-80Hz) | 106.8 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 14”H x 12.5”W x 15.7”D (355.6 x 317.5 x 398.8 mm) |
| Drivers | 10” (254mm) driver |
| Enclosure | ported, rear |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 40 Hz | 103.0 dB |
| Output SPL at 50 Hz | 106.5 dB |
| Output SPL at 63 Hz | 109.0 dB |
| 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 |
| Weight | 25.6 lbs (11.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by ErinsAudioCorner; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons