Monoprice Monolith M-15 V2 vs Power Sound Audio (PSA) XS15SE

Last updated: September 17, 2026

Short answer: the Power Sound Audio (PSA) XS15SE, if you are buying new. The Monoprice Monolith M-15 V2 ranks higher than it (#64 vs #22 of 145 subwoofers, 4.2/5 vs 3.9/5) but is discontinued, so only consider it used; the Power Sound Audio (PSA) XS15SE is still sold new at $1499.

Monoprice Monolith M-15 V2 vs Power Sound Audio (PSA) XS15SE

What the Power Sound Audio (PSA) XS15SE gets right: 15-inch sealed driver delivers 117.8dB CEA-2010-A average in a compact sealed enclosure.

Buy the Power Sound Audio (PSA) XS15SE new; the Monoprice Monolith M-15 V2 is no longer sold new, so it only makes sense as a used find.

Want more options? Browse the full Subwoofers rankings.

Specifications Side By Side

Monoprice Monolith M-15 V2 Power Sound Audio (PSA) XS15SE
Price$1,500 Discontinued$1499
Ranked#64 of 110 in Large Home Subwoofers (Over 75 lbs)#22 of 145 in Medium Home Subwoofers (30-75 lbs)
Enclosureported, frontsealed
Output SPL at 12.5 Hz91.0 dB91.9 dB
Output SPL at 15 Hz106.3 dB96.5 dB
Output SPL at 20 Hz112.6 dB100.6 dB
Output SPL at 25 Hz116.6 dB107.2 dB
Output SPL at 31.5 Hz119.5 dB110.6 dB
Output SPL at 40 Hz120.9 dB114.7 dB
Output SPL at 50 Hz120.6 dB117.9 dB
Output SPL at 63 Hz120.0 dB119.1 dB
Output SPL at 80 Hz118.7 dB119.4 dB
Output SPL at 100 Hz120.1 dB119.3 dB
Output SPL at 125 Hz120.2 dB118.6 dB
CEA-2010-A Average (40-80Hz)120.0 dB117.8 dB
Dimensions28.7"H x 17.7"W x 26.8"D (729.0 x 449.6 x 680.7 mm)19.5"H x 17"W x 18"D (495.3 x 431.8 x 457.2 mm)
Weight132.9 lbs (60.3 kg)67 lbs (30.4 kg)
Warranty55
Cabinet Colorblack-
CountryUnited StatesUnited States
Measurement SourceManufacturerData-bass
Drivers15" (381mm) driver15" (381mm) driver
DiscontinuedYes-
InputsXLR, RCA-
XLR InputYes-
RCA InputYes-
TRS InputNo-
Optical InputNo-
Coaxial InputNo-
USB InputNo-
HDMI InputNo-
AES InputNo-
Aux InputNo-
Frequency Response-23-200Hz, ±3dB
Amplifier Power-550W RMS / 1650W peak

How Power Sound Audio (PSA) XS15SE compares with other leading options:

Prices on this page were last checked September 23, 2026 at 11:24 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.

The Two Speakers In Full

Monoprice Monolith M-15 V2: $1,500 Discontinued eBay

Monoprice Monolith M-15 V2 ranking card

Pros: Published CEA-2010 specifications list 112.6 dB at 20 Hz and 120.0 dB through 40-80 Hz. Its front-ported 15-inch design has substantial deep-bass and midbass headroom for cinema playback.

Cons: Discontinued and no longer sold new. At 60.3 kg and 729.0H x 449.6W x 680.7D mm, it needs committed floor space and careful room integration. Discontinued.

Notes: Product # 42851

Full Monoprice Monolith M-15 V2 review and specifications →

AES InputNo
Aux InputNo
CEA-2010-A Average (40-80Hz)120.0 dB
Cabinet Colorblack
Coaxial InputNo
CountryUnited States
Dimensions28.7"H x 17.7"W x 26.8"D (729.0 x 449.6 x 680.7 mm)
DiscontinuedYes
Drivers15" (381mm) driver
Enclosureported, front
HDMI InputNo
InputsXLR, RCA
Measurement SourceManufacturer
Optical InputNo
Output SPL at 12.5 Hz91.0 dB
Output SPL at 15 Hz106.3 dB
Output SPL at 20 Hz112.6 dB
Output SPL at 25 Hz116.6 dB
Output SPL at 31.5 Hz119.5 dB
Output SPL at 40 Hz120.9 dB
Output SPL at 50 Hz120.6 dB
Output SPL at 63 Hz120.0 dB
Output SPL at 80 Hz118.7 dB
Output SPL at 100 Hz120.1 dB
Output SPL at 125 Hz120.2 dB
RCA InputYes
TRS InputNo
USB InputNo
Warranty5
Weight132.9 lbs (60.3 kg)
XLR InputYes
Search eBay for Monoprice Monolith M-15 V2 →

Power Sound Audio (PSA) XS15SE: $1499 eBay

Power Sound Audio (PSA) XS15SE ranking card

Pros: 15-inch sealed driver delivers 117.8dB CEA-2010-A average in a compact sealed enclosure.

Full Power Sound Audio (PSA) XS15SE review and specifications →

Amplifier Power550W RMS / 1650W peak
CEA-2010-A Average (40-80Hz)117.8 dB
CountryUnited States
Dimensions19.5"H x 17"W x 18"D (495.3 x 431.8 x 457.2 mm)
Drivers15" (381mm) driver
Enclosuresealed
Frequency Response23-200Hz, ±3dB
Measurement SourceData-bass
Output SPL at 12.5 Hz91.9 dB
Output SPL at 15 Hz96.5 dB
Output SPL at 20 Hz100.6 dB
Output SPL at 25 Hz107.2 dB
Output SPL at 31.5 Hz110.6 dB
Output SPL at 40 Hz114.7 dB
Output SPL at 50 Hz117.9 dB
Output SPL at 63 Hz119.1 dB
Output SPL at 80 Hz119.4 dB
Output SPL at 100 Hz119.3 dB
Output SPL at 125 Hz118.6 dB
Warranty5
Weight67 lbs (30.4 kg)
Search eBay for Power Sound Audio (PSA) XS15SE →