Monoprice Monolith M-10 V2 THX Subwoofer 10 Inch
- Driver Size: 10 inches
- Power: 500 watts
- Connectivity: RCA
- Brand Tech: Monoprice
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A 10-inch, 500-watt subwoofer for home theater rooms that already have a receiver with an RCA subwoofer output to feed it.
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ASIN: B09LSRJ4V3Model: 142843Category: Subwoofers
Overview
With a 10-inch driver and 500 watts of power, the Monoprice 142843 is a subwoofer built as a ground-standing addition to a home theater or stereo system.
With a 10-inch driver and 500-watt power rating, this subwoofer is sized for a dedicated home theater room rather than a compact desktop setup, and its RCA connectivity matches the standard subwoofer output found on most AV receivers. The listed ground mount orientation means it sits directly on the floor rather than being wall or shelf mounted.
- 10-inch driver
- 500W power rating
- RCA input
- Ground mount design, black finish
Who it's for
Fits buyers adding low-end bass to an existing home theater or stereo receiver setup that has a subwoofer output. Not relevant if you need a compact subwoofer for a small space, given its 15 x 20.9 x 18.9 in footprint.
Pros and cons
- 10-inch driver with 500W power for real low-end output
- Simple RCA connection to any compatible receiver
- Ground-mount design for stable floor placement
- Full-size cabinet needs real floor space
- RCA-only input, no wireless connection option
Performance notes
A 10-inch driver at 500 watts gives the 142843 enough cone area and power to fill a mid-size to large room with low-frequency output, the kind of headroom that matters most for movie soundtracks and bass-heavy music. RCA input keeps setup simple with any receiver that has a dedicated subwoofer output, and the ground-mount design keeps the driver firing from floor level.
Specifications
| Brand | Monoprice |
|---|---|
| Model | 142843 |
| Dimensions & fit | |
| Driver Size | 10 incheslower than 51% of 38 subwoofers |
| Dimensions | 15 × 20.9 × 18.9 inches |
| Dimensions | 15 x 20.9 x 18.9 in |
| Power & efficiency | |
| Power | 500 wattshigher than 64% of 40 subwoofers |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | RCA |
| Mounting | Ground Mount |
| Other details | |
| Brand Tech | Monoprice |
| Speaker Type | Subwoofer |
Closest rivals on specs
Rockville APM10D Active Studio Subwoofer 10 Inch- Power 500 vs 400 watts (+25%)
Frequently asked questions
What size driver does the Monoprice 142843 use?
It has a 10-inch driver.
How is the 142843 subwoofer connected?
It connects via RCA input, matching standard subwoofer outputs on AV receivers.
Is this subwoofer wall mountable?
No, it is designed as a ground-mount unit that sits on the floor.