Short answer: the Monoprice Monolith M-10 V2 for deep bass in a smaller box, the SW-15 for a large room. The M-10 V2 is a 10-inch THX-certified ported sub reaching 17-20Hz on 500W RMS, and it costs $235.11 more. The SW-15 is a 15-inch ported design with 600W RMS (800W peak) and a Large-room Bassaholic rating, though it is budget-tier with ported room gain dependency, a 30 kg (66.1 lbs) frame and limited dynamic headroom.
Buy the Monoprice SW-15. It is rated higher for sound quality than the Monoprice Monolith M-10 V2 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Subwoofers rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Monoprice Monolith M-10 V2 | Monoprice SW-15 | |
|---|---|---|
| Price | $735.10 | $499.99 |
| Ranked | #161 of 212 in Medium Home Subwoofers (30-75 lbs) | #14 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, front | ported, bottom |
| Output SPL at 15 Hz | 93.9 dB | 90.0 dB |
| Output SPL at 20 Hz | 104.8 dB | 101.2 dB |
| Output SPL at 25 Hz | 108.5 dB | 106.3 dB |
| Output SPL at 31.5 Hz | 109.3 dB | 111.2 dB |
| Output SPL at 40 Hz | 109.7 dB | 116.0 dB |
| Output SPL at 50 Hz | 110.1 dB | 120.2 dB |
| Output SPL at 63 Hz | 110.6 dB | 120.5 dB |
| Output SPL at 80 Hz | 110.9 dB | 119.5 dB |
| Output SPL at 100 Hz | 111.2 dB | - |
| Output SPL at 125 Hz | 111.5 dB | - |
| CEA-2010-A Average (40-80Hz) | 110.3 dB | 119.0 dB |
| Dimensions | 20.9”H x 15”W x 18.9”D (530.9 x 381.0 x 480.1 mm) | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) |
| Weight | 72.5 lbs (32.9 kg) | 66.1 lbs (30.0 kg) |
| Warranty | 5 | 1 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Manufacturer | Audioholics |
| Amplifier Power | 500W RMS | 600W RMS / 800W peak |
| Frequency Response | 17-20Hz | 30-150Hz (-10dB) |
| Drivers | 10” (254mm) driver | 15” (381mm) driver |
| Inputs | XLR, RCA, XLR passthrough out | Stereo line level and speaker level |
| XLR Input | Yes | - |
| RCA Input | Yes | - |
| TRS Input | No | - |
| Optical Input | No | - |
| Coaxial Input | No | - |
| USB Input | No | - |
| HDMI Input | No | - |
| AES Input | No | - |
| Aux Input | No | - |
| Crossover Frequency | - | 40-150Hz, 18dB/octave |
| Phase Control | - | 0° or 180° |
Related Speaker Comparisons
More worthwhile head-to-heads for Monoprice SW-15: