Short answer: the MartinLogan Dynamo 1600X. It ranks #2 of 137 subwoofers at $1606.77; the Power Sound Audio (PSA) XV15 ranks #4 and costs $1995, so there is not much of a tradeoff to weigh.
The case for the MartinLogan Dynamo 1600X: Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass. The catch: Ported design room integration needs, mid-range 121.5 dB output, and $1,607 price.
What the Power Sound Audio (PSA) XV15 gets right: 15-inch ported downfirer with 500W delivers crisp detailed bass digging deep into lowest frequencies.
Buy the MartinLogan Dynamo 1600X if the ranking matters more than the price. Buy the Power Sound Audio (PSA) XV15 if the price matters more than the ranking.
Specifications Side By Side
| MartinLogan Dynamo 1600X | Power Sound Audio (PSA) XV15 | |
|---|---|---|
| Price | $1,606.77 | $1995 |
| Ranked | #2 of 137 in Medium Powered Home Subwoofers (30-75 lbs) | #4 of 137 in Medium Powered Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 15 Hz | 86.2 dB | - |
| Output SPL at 20 Hz | 99.4 dB | 110.2 dB |
| Output SPL at 25 Hz | 103.9 dB | 110.2 dB |
| Output SPL at 31.5 Hz | 111.7 dB | 110.2 dB |
| Output SPL at 40 Hz | 118.4 dB | 119.5 dB |
| Output SPL at 50 Hz | 121.0 dB | 119.5 dB |
| Output SPL at 63 Hz | 121.8 dB | 119.5 dB |
| Output SPL at 80 Hz | 121.0 dB | - |
| Output SPL at 100 Hz | 120.2 dB | - |
| Output SPL at 125 Hz | 119.0 dB | - |
| CEA-2010-A Average (40-80Hz) | 120.5 dB | 119.5 dB (avg of 3/4 bands) |
| Dimensions | 20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm) | 23.0"H x 17.0"W x 22.0"D (584.2 x 431.8 x 558.8 mm) |
| Weight | 56 lbs / 25.4 kg | 75 lbs / 34.0 kg |
| Warranty | 3 | 5 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 20-200Hz, ±3dB | 21-200Hz |
| Power Output (Watts) | 900W RMS / 1800W peak | 500W RMS / 1000W peak |
| Input Connections | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) | Stereo line level and speaker level |
| Drivers | 15" (381mm) driver | 15" (381mm) driver |
The Two Speakers In Full
MartinLogan Dynamo 1600X: $1,606.77
Pros: Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass. Easily configurable as forward-firing or down-firing. Smartphone app with Anthem Room Correction (ARC) optimizes bass across room. Wireless capable with optional SWT-X module.
Cons: Ported design room integration needs, mid-range 121.5 dB output, and $1,607 price.
| CEA-2010-A Average (40-80Hz) | 120.5 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 20.1"H x 17.9"W x 19.1"D (510.5 x 454.7 x 485.1 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | sealed |
| Frequency Response | 20-200Hz, ±3dB |
| Input Connections | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 86.2 dB |
| Output SPL at 20 Hz | 99.4 dB |
| Output SPL at 25 Hz | 103.9 dB |
| Output SPL at 31.5 Hz | 111.7 dB |
| Output SPL at 40 Hz | 118.4 dB |
| Output SPL at 50 Hz | 121.0 dB |
| Output SPL at 63 Hz | 121.8 dB |
| Output SPL at 80 Hz | 121.0 dB |
| Output SPL at 100 Hz | 120.2 dB |
| Output SPL at 125 Hz | 119.0 dB |
| Power Output (Watts) | 900W RMS / 1800W peak |
| Warranty | 3 |
| Weight | 56 lbs / 25.4 kg |
- Head-to-Head Comparisons
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Power Sound Audio (PSA) XV15: $1995
Pros: 15-inch ported downfirer with 500W delivers crisp detailed bass digging deep into lowest frequencies. 119.5dB output plays loud clean at 115dB peaks with no distortion. USA-built with durable finish.
| CEA-2010-A Average (40-80Hz) | 119.5 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 23.0"H x 17.0"W x 22.0"D (584.2 x 431.8 x 558.8 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 21-200Hz |
| Input Connections | Stereo line level and speaker level |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 110.2 dB |
| Output SPL at 25 Hz | 110.2 dB |
| Output SPL at 31.5 Hz | 110.2 dB |
| Output SPL at 40 Hz | 119.5 dB |
| Output SPL at 50 Hz | 119.5 dB |
| Output SPL at 63 Hz | 119.5 dB |
| Power Output (Watts) | 500W RMS / 1000W peak |
| Warranty | 5 |
| Weight | 75 lbs / 34.0 kg |
- Head-to-Head Comparisons
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.