Monoprice SW-15 vs Sigberg Audio INKOGNITO 12

Short answer: the Monoprice SW-15. It ranks #13 of 145 subwoofers by sound quality at $374.99; the Sigberg Audio INKOGNITO 12 ranks #50 and costs $3456.29, so there is not much of a tradeoff to weigh.

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 Sigberg Audio INKOGNITO 12 offers: Ultra-slim 12-inch sealed design (6.69” depth) with 250W RMS reaches 23Hz. Real quality accurate bass with minimal distortion and 10-band parametric EQ. Wall-mountable or under-furniture placement without sound loss. Premium European build quality. Watch for: No detailed measurement caveats are currently recorded.

Buy the Monoprice SW-15. It ranks higher for sound quality than the Sigberg Audio INKOGNITO 12 and costs less, so there is no real case for the other one.

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

Specifications Side By Side

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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 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.
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  • See all 72 comparisons

Sigberg Audio INKOGNITO 12: $3,456.29 Sigberg Audio eBay

Pros: Ultra-slim 12-inch sealed design (6.69” depth) with 250W RMS reaches 23Hz. Real quality accurate bass with minimal distortion and 10-band parametric EQ. Wall-mountable or under-furniture placement without sound loss. Premium European build quality.

Notes: low profile (<8in)

Full Sigberg Audio INKOGNITO 12 review and specifications →

Amplifier Power	250W RMS
CEA-2010-A Average (40-80Hz)	114.4 dB
Cabinet Color	black, white
Country	Norway
Dimensions	21.3"H x 25.6"W x 6.7"D (539.8 x 650.0 x 169.9 mm)
Discontinued	No
Drivers	12" (305mm) driver
Enclosure	sealed
Frequency Response	23-250Hz, ±3dB
Measurement Source	Manufacturer
Output SPL at 20 Hz	92.0 dB
Output SPL at 25 Hz	98.0 dB
Output SPL at 31.5 Hz	104.0 dB
Output SPL at 40 Hz	112.5 dB
Output SPL at 50 Hz	114.0 dB
Output SPL at 63 Hz	115.0 dB
Output SPL at 80 Hz	116.0 dB
Weight	48.5 lbs (22.0 kg)

• Links
  • Sigberg Audio INKOGNITO 12 Website
• Reviews, Comparisons and Sound Samples
  • These figures are manufacturer-specified rather than independently measured.