Short answer: the Monoprice SW-15. It ranks #8 of 137 subwoofers at $374.99; the Klipsch HD Theater 600 ranks #9 and costs $399, so there is not much of a tradeoff to weigh.
The case for the Monoprice SW-15: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. The tradeoff: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.
Buy the Klipsch HD Theater 600 if the price matters more than the ranking. Buy the Monoprice SW-15 if the ranking matters more than the price.
Specifications Side By Side
| Klipsch HD Theater 600 | Monoprice SW-15 | |
|---|---|---|
| Price | $399 | $374.99 |
| Ranked | #9 of 42 in Small Powered Home Subwoofers (Under 30 lbs) | #8 of 137 in Medium Powered Home Subwoofers (30-75 lbs) |
| Enclosure | ported, rear | ported, bottom |
| Output SPL at 25 Hz | 87.1 dB | 106.3 dB |
| Output SPL at 31.5 Hz | 98.4 dB | 111.2 dB |
| Output SPL at 40 Hz | 104.9 dB | 116.0 dB |
| Output SPL at 50 Hz | 107.6 dB | 120.2 dB |
| Output SPL at 63 Hz | 112.1 dB | 120.5 dB |
| CEA-2010-A Average (40-80Hz) | 108.2 dB (avg of 3/4 bands) | 119.0 dB |
| Dimensions | 13.9"H x 12.5"W x 12.5"D (353.1 x 317.5 x 317.5 mm) | 18.1"H x 21.0"W x 22.7"D (459.7 x 533.4 x 576.6 mm) |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Audioholics |
| Weight | 17 lbs / 7.7 kg | 66.1 lbs / 30.0 kg |
| Drivers | 8" (203mm) driver | 15" (381mm) driver |
| Output SPL at 15 Hz | - | 90.0 dB |
| Output SPL at 20 Hz | - | 101.2 dB |
| Output SPL at 80 Hz | - | 119.5 dB |
| Warranty | - | 1 |
| Cabinet Color | - | black |
| Frequency Response | - | 30-150Hz (-10dB) |
| Power Output (Watts) | - | 600W RMS / 800W peak |
| Crossover | - | 40-150Hz, 18dB/octave |
| Phase Control | - | 0° or 180° |
| Input Connections | - | Stereo line level and speaker level |
The Two Speakers In Full
Klipsch HD Theater 600: $399
| 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 |
- Head-to-Head Comparisons
- Links
Monoprice SW-15: $374.99 Amazon
Pros: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup.
Cons: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.
Notes: Product # 41499
| CEA-2010-A Average (40-80Hz) | 119.0 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Crossover | 40-150Hz, 18dB/octave |
| Dimensions | 18.1"H x 21.0"W x 22.7"D (459.7 x 533.4 x 576.6 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 30-150Hz (-10dB) |
| Input Connections | Stereo line level and speaker level |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.0 dB |
| Output SPL at 20 Hz | 101.2 dB |
| Output SPL at 25 Hz | 106.3 dB |
| Output SPL at 31.5 Hz | 111.2 dB |
| Output SPL at 40 Hz | 116.0 dB |
| Output SPL at 50 Hz | 120.2 dB |
| Output SPL at 63 Hz | 120.5 dB |
| Output SPL at 80 Hz | 119.5 dB |
| Phase Control | 0° or 180° |
| Power Output (Watts) | 600W RMS / 800W peak |
| Warranty | 1 |
| Weight | 66.1 lbs / 30.0 kg |
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- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.