Monoprice Monolith 16 THX Ultra vs Arendal 1723 Subwoofer 1V

Last updated: September 14, 2026

Short answer: the Monoprice Monolith 16 THX Ultra if sound quality matters most, the Arendal 1723 Subwoofer 1V if price matters most. The Monoprice Monolith 16 THX Ultra ranks #18 of 110 subwoofers at $2300. The Arendal 1723 Subwoofer 1V ranks #89 at $2050, $250 cheaper.

Monoprice Monolith 16 THX Ultra vs Arendal 1723 Subwoofer 1V

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 Arendal 1723 Subwoofer 1V offers: Independent CEA-2010 testing records 106.9 dB at 20 Hz and 116.5 dB through 40-80 Hz. The ported, rear enclosure with 13.8” (351mm) driver has the headroom for demanding film bass in a large room. Watch for: The 624.8H x 449.8W x 549.9D mm cabinet and 48.1 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.

Buy the Monoprice Monolith 16 THX Ultra when sound quality outweighs the price for you, and the Arendal 1723 Subwoofer 1V when the price outweighs sound quality instead.

If sound quality matters at all to you, skip the Arendal 1723 Subwoofer 1V. It ranks near the bottom of the 110 subwoofers, so look higher up the list instead.

Looking for alternatives? See the complete Subwoofers rankings.

Specifications Side By Side

Monoprice Monolith 16 THX Ultra Arendal 1723 Subwoofer 1V
Price$2,300$2,050
Ranked#18 of 110 in Large Home Subwoofers (Over 75 lbs)#89 of 110 in Large Home Subwoofers (Over 75 lbs)
Enclosureported, frontported, rear
Output SPL at 15 Hz107.3 dB104.2 dB
Output SPL at 20 Hz118.4 dB106.9 dB
Output SPL at 25 Hz123.3 dB107.9 dB
Output SPL at 31.5 Hz125.1 dB110.8 dB
Output SPL at 40 Hz126.3 dB114.2 dB
Output SPL at 50 Hz126.5 dB116.7 dB
Output SPL at 63 Hz126.6 dB116.8 dB
Output SPL at 80 Hz126.8 dB118.5 dB
Output SPL at 100 Hz127.2 dB118.6 dB
Output SPL at 125 Hz127.6 dB116.7 dB
CEA-2010-A Average (40-80Hz)126.5 dB116.5 dB
Dimensions25.6"H x 22"W x 28.1"D (650.2 x 558.8 x 713.7 mm)24.6"H x 17.7"W x 21.6"D (624.8 x 449.8 x 549.9 mm)
Weight171.5 lbs (77.8 kg)106 lbs (48.1 kg)
Warranty510/5
Cabinet Colorblackblack, white
CountryUnited StatesNorway
Measurement SourceAudioholicsAudioholics
Drivers16" (406mm) driver13.8" (351mm) driver
Output SPL at 12.5 Hz-98.3 dB

How Monoprice Monolith 16 THX Ultra compares with other leading options:

Prices on this page were last checked September 14, 2026 at 1:47 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 →

Arendal 1723 Subwoofer 1V: $2,050 eBay

Arendal 1723 Subwoofer 1V ranking card

Pros: Independent CEA-2010 testing records 106.9 dB at 20 Hz and 116.5 dB through 40-80 Hz. The ported, rear enclosure with 13.8” (351mm) driver has the headroom for demanding film bass in a large room.

Cons: The 624.8H x 449.8W x 549.9D mm cabinet and 48.1 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.

Full Arendal 1723 Subwoofer 1V review and specifications →

CEA-2010-A Average (40-80Hz)116.5 dB
Cabinet Colorblack, white
CountryNorway
Dimensions24.6"H x 17.7"W x 21.6"D (624.8 x 449.8 x 549.9 mm)
Drivers13.8" (351mm) driver
Enclosureported, rear
Measurement SourceAudioholics
Output SPL at 12.5 Hz98.3 dB
Output SPL at 15 Hz104.2 dB
Output SPL at 20 Hz106.9 dB
Output SPL at 25 Hz107.9 dB
Output SPL at 31.5 Hz110.8 dB
Output SPL at 40 Hz114.2 dB
Output SPL at 50 Hz116.7 dB
Output SPL at 63 Hz116.8 dB
Output SPL at 80 Hz118.5 dB
Output SPL at 100 Hz118.6 dB
Output SPL at 125 Hz116.7 dB
Warranty10/5
Weight106 lbs (48.1 kg)
Search eBay for Arendal 1723 Subwoofer 1V →