Monoprice SW-15 vs PSB Speakers SubSeries 450

Short answer: the PSB Speakers SubSeries 450 if sound quality matters most, the Monoprice SW-15 if price matters most. The PSB Speakers SubSeries 450 ranks #4 of 145 subwoofers at $1898.91. The Monoprice SW-15 ranks #13 at $374.99, $1523.92 cheaper.

What the Monoprice SW-15 offers: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup. Watch for: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.

What the PSB Speakers SubSeries 450 offers: 12-inch passive radiator with 400W RMS (1000W peak). Pitch definition and precision equal to far pricier designs. Bass hits hard and tight without lingering in room. Strong presence in bass guitar range for music. Does it all well. Watch for: No detailed measurement caveats are currently recorded.

Buy the Monoprice SW-15 if the price is the priority over sound quality, or the PSB Speakers SubSeries 450 if sound quality is the priority over the price.

Want more options? Browse the full Subwoofers rankings.

Specifications Side By Side

Related Speaker Comparisons

More top alternatives to PSB Speakers SubSeries 450:

• Monoprice SW-15 vs JL Audio E110
• Monoprice SW-15 vs Power Sound Audio (PSA) XV15SEICE-BASE
• Monoprice SW-15 vs Power Sound Audio (PSA) XV15
• Monoprice SW-15 vs REL Acoustics R-528
• Monoprice SW-15 vs OEM Systems ICBM

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.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Speakers In Full

Monoprice SW-15: $374.99 Amazon eBay

Pros: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup.

Cons: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.

Notes: Product # 41499

Full Monoprice SW-15 review and specifications →

Amplifier Power	600W RMS / 800W peak
CEA-2010-A Average (40-80Hz)	119.0 dB
Cabinet Color	black
Country	United States
Crossover Frequency	40-150Hz, 18dB/octave
Dimensions	18.1"H x 21"W x 22.7"D (459.7 x 533.4 x 576.6 mm)
Drivers	15" (381mm) driver
Enclosure	ported, bottom
Frequency Response	30-150Hz (-10dB)
Inputs	Stereo line level and speaker level
Measurement Source	Audioholics
Output SPL at 15 Hz	90.0 dB
Output SPL at 20 Hz	101.2 dB
Output SPL at 25 Hz	106.3 dB
Output SPL at 31.5 Hz	111.2 dB
Output SPL at 40 Hz	116.0 dB
Output SPL at 50 Hz	120.2 dB
Output SPL at 63 Hz	120.5 dB
Output SPL at 80 Hz	119.5 dB
Phase Control	0° or 180°
Warranty	1
Weight	66.1 lbs (30.0 kg)

• Links
  • Monoprice SW-15 Website
• Reviews, Comparisons and Sound Samples
  • Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
• Head-to-Head Comparisons
  • Monoprice SW-15 vs Power Sound Audio (PSA) XV15SEICE-BASE
  • Monoprice SW-15 vs SVS SB-3000
  • Monoprice SW-15 vs Power Sound Audio (PSA) XS15
  • Monoprice SW-15 vs Power Sound Audio (PSA) XV15-BASE
  • Monoprice SW-15 vs Paradigm Defiance X12
  • Monoprice SW-15 vs Power Sound Audio (PSA) XS15-BASE
  • Monoprice SW-15 vs Power Sound Audio (PSA) XV15
  • Monoprice SW-15 vs Klipsch SPL-120
  • See all 72 comparisons

PSB Speakers SubSeries 450: $1,898.91 eBay

Pros: 12-inch passive radiator with 400W RMS (1000W peak). Pitch definition and precision equal to far pricier designs. Bass hits hard and tight without lingering in room. Strong presence in bass guitar range for music. Does it all well.

Full PSB Speakers SubSeries 450 review and specifications →

Amplifier Power	400W RMS / 1000W peak
CEA-2010-A Average (40-80Hz)	122.1 dB
Cabinet Color	black
Country	Canada
Dimensions	15.1"H x 15.4"W x 16.6"D (384.0 x 390.4 x 422.1 mm)
Drivers	12" (305mm) driver
Enclosure	passive radiator
Frequency Response	20-150Hz, ±3dB
Measurement Source	Brent Butterworth
Output SPL at 20 Hz	94.1 dB
Output SPL at 25 Hz	107.1 dB
Output SPL at 31.5 Hz	114.1 dB
Output SPL at 40 Hz	117.4 dB
Output SPL at 50 Hz	121.8 dB
Output SPL at 63 Hz	124.3 dB
Output SPL at 80 Hz	124.9 dB
Warranty	5
Weight	43 lbs (19.5 kg)

• Links
  • PSB Speakers SubSeries 450 Website
• Reviews, Comparisons and Sound Samples
  • Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.