The Bowers & Wilkins DB4S ranks #37 out of 152 total Medium Home Subwoofers (30-75 lbs) for sound quality. See all Subwoofers rankings for every top pick.
Brand: Bowers & Wilkins
Prices on this page were last checked October 3, 2026 at 10:26 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.
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#37 Bowers & Wilkins DB4S: $2,499.00 each Bowers & Wilkins eBay
Pros: Single forward-firing 10-inch Aerofoil drive unit powered by 1,000 watts of Class D Hypex amplification in a rigid sealed enclosure. Features Bowers & Wilkins’ digital preamplifier with automated mobile room EQ and parametric filters, delivering clean, musical low-frequency control with balanced XLR and unbalanced RCA inputs.
Cons: A single 10-inch sealed driver produces less deep bass headroom below 30Hz than larger ported models or dual-opposed designs like the DB2D and DB1D. High price point for a single 10-inch subwoofer.
How it compares: Just above it: Bowers & Wilkins DB2D - $3301 more, 4.5dB more max output. Just below it: Bose Lifestyle Ultra Subwoofer - $1600 cheaper, 4.2dB more max output.
| Amplifier Power | 1000W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 111.2 dB |
| Cabinet Color | gloss black, satin white, rosenut |
| Country | United Kingdom |
| Dimensions | 14.8”H x 14.2”W x 14.5”D (377.0 x 360.0 x 368.0 mm) |
| Drivers | 1x 10” (254mm) Aerofoil driver |
| Enclosure | sealed |
| Inputs | XLR (2, balanced), RCA (2, unbalanced) |
| Measurement Source | Audioholics |
| Output SPL at 20 Hz | 88.4 dB |
| Output SPL at 25 Hz | 94.1 dB |
| Output SPL at 31.5 Hz | 103.3 dB |
| Output SPL at 40 Hz | 107.4 dB |
| Output SPL at 50 Hz | 111.2 dB |
| Output SPL at 63 Hz | 113.6 dB |
| Output SPL at 80 Hz | 112.5 dB |
| Output SPL at 100 Hz | 111.6 dB |
| Output SPL at 125 Hz | 110.0 dB |
| RCA Input | Yes |
| Warranty | 5 |
| Weight | 57.3 lbs (26.0 kg) |
| XLR Input | Yes |
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