Short answer: the Harbinger V2218S for better sound quality, the SVS PB-4000 for the lower price. The Harbinger V2218S ranks #15 of 110 subwoofers at $3495. The SVS PB-4000 ranks #62 at $2158.97, $1336.03 cheaper.
What the Harbinger V2218S offers: Independent CEA-2010 testing records 81.7 dB at 20 Hz and 128.9 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver delivers formidable upper-bass output for movie effects and music. Watch for: 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 825.5H x 673.1W x 754.4D mm cabinet and 40.8 kg mass still require deliberate placement and calibration.
What the SVS PB-4000 offers: Independent CEA-2010 testing records 115.3 dB at 20 Hz and 120.3 dB through 40-80 Hz. The ported, front enclosure with 13.5” (343mm) driver with ported design has the headroom for demanding film bass in a large room. Watch for: The 594.4H x 520.7W x 703.6D mm cabinet and 69.5 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
Buy the Harbinger V2218S when sound quality outweighs the price for you, and the SVS PB-4000 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Harbinger V2218S | SVS PB-4000 | |
|---|---|---|
| Price | $3495 | $2,158.97 |
| Ranked | #15 of 110 in Large Home Subwoofers (Over 75 lbs) | #62 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Output SPL at 20 Hz | 81.7 dB | 115.3 dB |
| Output SPL at 25 Hz | 99.7 dB | 116.3 dB |
| Output SPL at 31.5 Hz | 118.0 dB | 117.8 dB |
| Output SPL at 40 Hz | 122.8 dB | 119.8 dB |
| Output SPL at 50 Hz | 129.0 dB | 121.7 dB |
| Output SPL at 63 Hz | 132.2 dB | 120.7 dB |
| Output SPL at 80 Hz | 131.7 dB | 119.2 dB |
| CEA-2010-A Average (40-80Hz) | 128.9 dB | 120.3 dB |
| Dimensions | 32.5"H x 26.5"W x 29.7"D (825.5 x 673.1 x 754.4 mm) | 23.4"H x 20.5"W x 27.7"D (594.4 x 520.7 x 703.6 mm) |
| Weight | 89.9 lbs (40.8 kg) | 153.2 lbs (69.5 kg) |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Audioholics |
| Drivers | 18" (457mm) driver | 13.5" (343mm) driver with ported design |
| Output SPL at 15 Hz | - | 102.1 dB |
| Output SPL at 100 Hz | - | 118.1 dB |
| Output SPL at 125 Hz | - | 117.5 dB |
| Warranty | - | 5 |
Related Speaker Comparisons
More worthwhile head-to-heads for Harbinger V2218S:
- Harbinger V2218S vs Funk Audio Ultra 24.0
- Harbinger V2218S vs JTR Speakers Growler (2015)
- Harbinger V2218S vs Funk Audio Classic 18.0
- Monoprice Monolith 16 THX Ultra vs Harbinger V2218S
- Rythmik FV25HP vs Harbinger V2218S
Prices on this page were last checked September 16, 2026 at 12:41 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
Harbinger V2218S: $3495 eBay
Pros: Independent CEA-2010 testing records 81.7 dB at 20 Hz and 128.9 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver delivers formidable upper-bass output for movie effects and music.
Cons: 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 825.5H x 673.1W x 754.4D mm cabinet and 40.8 kg mass still require deliberate placement and calibration.
Notes: Looks like “PA sub”
Full Harbinger V2218S review and specifications →
| CEA-2010-A Average (40-80Hz) | 128.9 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 32.5"H x 26.5"W x 29.7"D (825.5 x 673.1 x 754.4 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 81.7 dB |
| Output SPL at 25 Hz | 99.7 dB |
| Output SPL at 31.5 Hz | 118.0 dB |
| Output SPL at 40 Hz | 122.8 dB |
| Output SPL at 50 Hz | 129.0 dB |
| Output SPL at 63 Hz | 132.2 dB |
| Output SPL at 80 Hz | 131.7 dB |
| Weight | 89.9 lbs (40.8 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Harbinger V2218S vs Funk Audio Classic 18.0
- Harbinger V2218S vs JTR Speakers Growler (2015)
- Harbinger V2218S vs Monoprice Monolith 16 THX Ultra
- Harbinger V2218S vs Funk Audio Ultra 24.0
- Harbinger V2218S vs Rythmik FV25HP
- Harbinger V2218S vs Monoprice Monolith M-215
- Harbinger V2218S vs JTR Speakers Captivator 1400
- Harbinger V2218S vs JTR Speakers Captivator 2400ULF
- See all 14 comparisons
SVS PB-4000: $2,158.97 Amazon eBay
Pros: Independent CEA-2010 testing records 115.3 dB at 20 Hz and 120.3 dB through 40-80 Hz. The ported, front enclosure with 13.5” (343mm) driver with ported design has the headroom for demanding film bass in a large room.
Cons: The 594.4H x 520.7W x 703.6D mm cabinet and 69.5 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
Full SVS PB-4000 review and specifications →
| CEA-2010-A Average (40-80Hz) | 120.3 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 23.4"H x 20.5"W x 27.7"D (594.4 x 520.7 x 703.6 mm) |
| Drivers | 13.5" (343mm) driver with ported design |
| Enclosure | ported, front |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 102.1 dB |
| Output SPL at 20 Hz | 115.3 dB |
| Output SPL at 25 Hz | 116.3 dB |
| Output SPL at 31.5 Hz | 117.8 dB |
| Output SPL at 40 Hz | 119.8 dB |
| Output SPL at 50 Hz | 121.7 dB |
| Output SPL at 63 Hz | 120.7 dB |
| Output SPL at 80 Hz | 119.2 dB |
| Output SPL at 100 Hz | 118.1 dB |
| Output SPL at 125 Hz | 117.5 dB |
| Warranty | 5 |
| Weight | 153.2 lbs (69.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- SVS PB-4000 vs SVS SB-4000
- SVS PB-4000 vs Monoprice Monolith M-15 V2
- SVS PB-4000 vs Rythmik F18
- SVS PB-4000 vs HSU Research VTF-3 MK5 HP
- SVS PB-4000 vs Monoprice Monolith M15-S
- SVS PB-4000 vs HSU Research VTF-15H MK2
- SVS PB-4000 vs Rythmik FV15HP
- SVS PB-4000 vs JTR Speakers Captivator 1400
- See all 24 comparisons