The Monoprice Monolith 10 THX Select ranks #71 out of 137 total Medium Powered Home Subwoofers (30–75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#71 Monoprice Monolith 10 THX Select: $699
Pros: THX-certified 10-inch ported with 500W amp extends down to 20Hz with no internal resonance or port noise. HDF cabinet construction ensures inert enclosure. Variable phase adjustment and robust built-to-last design.
Notes: Product # 24456
How it compares: Just above it: Definitive Technology SuperCube 8000 - $600 more. Just below it: THIEL Audio SmartSub 1.12.
| CEA-2010-A Average (40-80Hz) | 111.5 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 18.9"H x 15.0"W x 19.7"D (480.1 x 381.0 x 500.4 mm) |
| Driver | 10" (254mm) driver |
| Driver(s) | (1) 10 inch |
| Enclosure | ported, front |
| Frequency Response | 17-20Hz |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 15 Hz | 95.4 dB |
| Output SPL at 20 Hz | 102.6 dB |
| Output SPL at 25 Hz | 107.7 dB |
| Output SPL at 31.5 Hz | 109.0 dB |
| Output SPL at 40 Hz | 110.0 dB |
| Output SPL at 50 Hz | 112.0 dB |
| Output SPL at 63 Hz | 112.0 dB |
| Output SPL at 80 Hz | 112.0 dB |
| Output SPL at 100 Hz | 112.0 dB |
| Output SPL at 125 Hz | 111.0 dB |
| Power Output (Watts) | 500W RMS |
| Warranty | 5 |
| Weight | 72.5 lbs / 32.9 kg |
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Product prices and availability were last checked July 31, 2026 at 5:30 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.