Monoprice Monolith 16 THX Ultra vs Perlisten Audio R212s

Last updated: September 16, 2026

Short answer: the Monoprice Monolith 16 THX Ultra. It ranks #18 of 110 subwoofers by sound quality at $2300; the Perlisten Audio R212s ranks #71 and costs $5000, which makes this an easy call rather than a real tradeoff.

Monoprice Monolith 16 THX Ultra vs Perlisten Audio R212s

What the Monoprice Monolith 16 THX Ultra offers: 16-inch ported driver and THX Ultra certification deliver 126.5dB CEA-2010-A average at a fraction of the price of the subwoofers ranked above it. Watch for: Heavy at 78 kg and ported design can interact with room acoustics.

What the Perlisten Audio R212s offers: Independent CEA-2010 testing records 102.7 dB at 20 Hz and 119.2 dB through 40-80 Hz. The sealed enclosure with 2x 12” (305mm) drivers delivers substantial upper-bass output for movie effects and music. Watch for: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 599.4H x 408.9W x 500.4D mm cabinet and 48.1 kg mass still require deliberate placement and calibration.

Buy the Monoprice Monolith 16 THX Ultra. It ranks higher for sound quality than the Perlisten Audio R212s and costs less, so the other one has nothing left to offer.

Still deciding? The full Subwoofers rankings cover every ranked option.

Specifications Side By Side

Monoprice Monolith 16 THX Ultra Perlisten Audio R212s
Price$2,300$5,000
Ranked#18 of 110 in Large Home Subwoofers (Over 75 lbs)#71 of 110 in Large Home Subwoofers (Over 75 lbs)
Enclosureported, frontsealed
Output SPL at 15 Hz107.3 dB98.3 dB
Output SPL at 20 Hz118.4 dB102.7 dB
Output SPL at 25 Hz123.3 dB107.7 dB
Output SPL at 31.5 Hz125.1 dB112.1 dB
Output SPL at 40 Hz126.3 dB116.0 dB
Output SPL at 50 Hz126.5 dB118.8 dB
Output SPL at 63 Hz126.6 dB120.6 dB
Output SPL at 80 Hz126.8 dB121.4 dB
Output SPL at 100 Hz127.2 dB121.7 dB
Output SPL at 125 Hz127.6 dB121.9 dB
CEA-2010-A Average (40-80Hz)126.5 dB119.2 dB
Dimensions25.6"H x 22"W x 28.1"D (650.2 x 558.8 x 713.7 mm)23.6"H x 16.1"W x 19.7"D (599.4 x 408.9 x 500.4 mm)
Weight171.5 lbs (77.8 kg)106 lbs (48.1 kg)
Warranty55
Cabinet Colorblackblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsAudioholics
Drivers16" (406mm) driver2x 12" (305mm) drivers

More top alternatives to Monoprice Monolith 16 THX Ultra:

Prices on this page were last checked September 16, 2026 at 12:41 AM 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.

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The Two Speakers In Full

Monoprice Monolith 16 THX Ultra: $2,300 eBay

Monoprice Monolith 16 THX Ultra ranking card

Pros: 16-inch ported driver and THX Ultra certification deliver 126.5dB CEA-2010-A average at a fraction of the price of the subwoofers ranked above it.

Cons: Heavy at 78 kg and ported design can interact with room acoustics.

Notes: Product # 42031

Full Monoprice Monolith 16 THX Ultra review and specifications →

CEA-2010-A Average (40-80Hz)126.5 dB
Cabinet Colorblack
CountryUnited States
Dimensions25.6"H x 22"W x 28.1"D (650.2 x 558.8 x 713.7 mm)
Drivers16" (406mm) driver
Enclosureported, front
Measurement SourceAudioholics
Output SPL at 15 Hz107.3 dB
Output SPL at 20 Hz118.4 dB
Output SPL at 25 Hz123.3 dB
Output SPL at 31.5 Hz125.1 dB
Output SPL at 40 Hz126.3 dB
Output SPL at 50 Hz126.5 dB
Output SPL at 63 Hz126.6 dB
Output SPL at 80 Hz126.8 dB
Output SPL at 100 Hz127.2 dB
Output SPL at 125 Hz127.6 dB
Warranty5
Weight171.5 lbs (77.8 kg)
Search eBay for Monoprice Monolith 16 THX Ultra →

Perlisten Audio R212s: $5,000 eBay

Perlisten Audio R212s ranking card

Pros: Independent CEA-2010 testing records 102.7 dB at 20 Hz and 119.2 dB through 40-80 Hz. The sealed enclosure with 2x 12” (305mm) drivers delivers substantial upper-bass output for movie effects and music.

Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 599.4H x 408.9W x 500.4D mm cabinet and 48.1 kg mass still require deliberate placement and calibration.

Full Perlisten Audio R212s review and specifications →

CEA-2010-A Average (40-80Hz)119.2 dB
Cabinet Colorblack
CountryUnited States
Dimensions23.6"H x 16.1"W x 19.7"D (599.4 x 408.9 x 500.4 mm)
Drivers2x 12" (305mm) drivers
Enclosuresealed
Measurement SourceAudioholics
Output SPL at 15 Hz98.3 dB
Output SPL at 20 Hz102.7 dB
Output SPL at 25 Hz107.7 dB
Output SPL at 31.5 Hz112.1 dB
Output SPL at 40 Hz116.0 dB
Output SPL at 50 Hz118.8 dB
Output SPL at 63 Hz120.6 dB
Output SPL at 80 Hz121.4 dB
Output SPL at 100 Hz121.7 dB
Output SPL at 125 Hz121.9 dB
Warranty5
Weight106 lbs (48.1 kg)
Search eBay for Perlisten Audio R212s →