Short answer: the Funk Audio Classic 18.0. It ranks #17 of 143 subwoofers by sound quality (rated 4.4/5) at $9,875 and is still sold new; the SVS PB-4000 ranks #69 (rated 4.2/5) and is discontinued, so it is only an option used. The SVS PB-4000’s replacement, the SVS PB-5000 R-Evolution, is rated 4.2/5 at $2,399.
Why pick the Funk Audio Classic 18.0: A sealed 18 inch subwoofer with punchy, powerful upper bass for movie effects and music, with balanced daisy chain inputs. The catch: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority.
The case for the SVS PB-4000: A 13.5 inch ported subwoofer with very deep, strong bass for big home theaters and balanced and RCA inputs. The catch: The 594.4H x 520.7W x 703.6D mm cabinet and 153.2 lbs (69.5 kg) mass make this a serious placement and moving commitment.
Buy the Funk Audio Classic 18.0. It is rated higher for sound quality and still sold new, while the SVS PB-4000 is discontinued.
Still deciding? The full Subwoofers rankings cover every ranked option.
A sealed 18 inch subwoofer with punchy, powerful upper bass for movie effects and music, with balanced daisy chain inputs.
A 13.5 inch ported subwoofer with very deep, strong bass for big home theaters and balanced and RCA inputs.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Funk Audio Classic 18.0 | SVS PB-4000 | |
|---|---|---|
| Price | $9,875 | $2,158.97 Discontinued |
| Ranked | #17 of 143 in Large Home Subwoofers (Over 75 lbs) | #69 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 10 Hz | 94.6 dB | - |
| Output SPL at 12.5 Hz | 98.4 dB | - |
| Output SPL at 15 Hz | 102.3 dB | 102.1 dB |
| Output SPL at 20 Hz | 106.5 dB | 115.3 dB |
| Output SPL at 25 Hz | 111.7 dB | 116.3 dB |
| Output SPL at 31.5 Hz | 119.0 dB | 117.8 dB |
| Output SPL at 40 Hz | 124.6 dB | 119.8 dB |
| Output SPL at 50 Hz | 126.8 dB | 121.7 dB |
| Output SPL at 63 Hz | 128.4 dB | 120.7 dB |
| Output SPL at 80 Hz | 129.6 dB | 119.2 dB |
| Output SPL at 100 Hz | 130.2 dB | 118.1 dB |
| Output SPL at 125 Hz | 130.8 dB | 117.5 dB |
| CEA-2010-A Average (40-80Hz) | 127.3 dB | 120.3 dB |
| Dimensions | 22.5”H x 22”W x 20.5”D (571.5 x 558.8 x 520.7 mm) | 23.4”H x 20.5”W x 27.7”D (594.4 x 520.7 x 703.6 mm) |
| Weight | 115.1 lbs (52.2 kg) | 153.2 lbs (69.5 kg) |
| Warranty | 3 | 5 |
| Cabinet Color | wood, custom | black |
| Country | Canada | United States |
| Measurement Source | Data-bass | Audioholics |
| Drivers | 18” (457mm) driver | 13.5” (343mm) driver with ported design |
| Inputs | XLR (balanced, with daisy-chain) | XLR (balanced), RCA (LFE/stereo) |
| XLR Input | Yes | Yes |
| RCA Input | No | Yes |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
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