A head-to-head subwoofers comparison to help you pick the right one for your home theater.
Updated June 3, 2026
Verdict
Both are 12-inch powered subwoofers that deliver serious home-theater bass. The SVS PB-2000 Pro is a ported sub with a smartphone app, DSP presets, and SVS's refined, tuneable low end. The Monoprice Monolith 12 THX is THX-certified and delivers enormous output for roughly half the price, making it one of the best value subs available. Buy the SVS PB-2000 Pro for app control, DSP tuning, and refinement; buy the Monoprice Monolith 12 THX for the most output per dollar.
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Planning the sound? Get the whole matched system.
Pick 5.1, 5.1.2, 7.1 or 7.1.4 and a budget, and get timbre-matched speakers, a sub sized to your room and a receiver with enough channels.
Check price on Amazon
The Monolith 12 THX is not currently sold new on Amazon, so this button shows the live listings.
See Monolith 12 THX listings on Amazon| SVS PB-2000 Pro | Monoprice Monolith 12 THX | |
|---|---|---|
| Driver | 12" ported | 12" (THX-certified) |
| App / DSP control | Yes (SVS app) | No |
| Output | Deep, refined | Very high (great value) |
| Tuning | DSP presets, parametric EQ | Basic controls |
| Build | Premium | Solid, utilitarian |
| Best for | Tuning, refinement, music+movies | Max bass per dollar |
| Price | Under $2,500 | Check price on Amazon |
The table above compares the SVS PB-2000 Pro and the Monoprice Monolith 12 THX on driver, app and DSP control, output, tuning, build and price, and the difference that actually decides it is app and DSP control, which the SVS has at under $2,500 and the THX-certified Monolith does without.
THX certification means a subwoofer has been measured against fixed thresholds for output, distortion and frequency response in a reference room size, so it guarantees a floor for performance rather than saying anything about refinement or tuning control.
You want app control, DSP presets and parametric EQ to tune bass to your room, and SVS's refined low end for both movies and music.
Check SVS PB-2000 Pro on Amazon
You want the most output and impact for your money, THX-certified performance, and do not need app control or extensive tuning.
See Monolith 12 THX listings on Amazon
It is if you value the SVS smartphone app, DSP presets, parametric EQ, and refined tuning, plus SVS's build and support. The Monoprice Monolith 12 THX delivers tremendous output for half the price, so for pure bass-per-dollar it is the value champion.
Yes. The SVS app lets you set volume, low-pass filter, phase, polarity, room-gain compensation, and parametric EQ from your phone, which makes dialing the sub into your room far easier and more precise than the basic knobs on most subs, including the Monolith.
Both are capable 12-inch subs with strong output. The Monoprice Monolith 12 THX is known for big, THX-certified output at its price, while the SVS PB-2000 Pro pairs deep output with tuning control. For a single sub in a typical room, both will more than fill the space.
Two subs smooth bass across more seats by averaging room modes. Two Monolith 12 THX subs often outperform a single premium sub for multi-seat rooms. If you prefer one refined, app-controlled sub, the SVS PB-2000 Pro is excellent.