Short answer: the Funk Audio Ultra 24.0 on measured sound quality, the Harbinger V2218S on price. The Funk Audio Ultra 24.0 ranks #11 of 110 subwoofers at $9761.14. The Harbinger V2218S ranks #15 at $3495, $6266.14 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 Funk Audio Ultra 24.0 offers: Published CEA-2010 specifications list 120.0 dB at 20 Hz and 127.9 dB through 40-80 Hz. The sealed enclosure with 24” (610mm) driver has the headroom for demanding film bass in a large room. Watch for: The 787.4H x 660.4W x 609.6D mm cabinet and 135 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.
Buy the Harbinger V2218S if the price is the priority over sound quality, or the Funk Audio Ultra 24.0 if sound quality is the priority over the price.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Harbinger V2218S | Funk Audio Ultra 24.0 | |
|---|---|---|
| Price | $3495 | $9,761.14 |
| Ranked | #15 of 110 in Large Home Subwoofers (Over 75 lbs) | #11 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 20 Hz | 81.7 dB | 120.0 dB |
| Output SPL at 25 Hz | 99.7 dB | 122.0 dB |
| Output SPL at 31.5 Hz | 118.0 dB | 123.0 dB |
| Output SPL at 40 Hz | 122.8 dB | 127.1 dB |
| Output SPL at 50 Hz | 129.0 dB | 129.9 dB |
| Output SPL at 63 Hz | 132.2 dB | 127.6 dB |
| Output SPL at 80 Hz | 131.7 dB | 127.0 dB |
| CEA-2010-A Average (40-80Hz) | 128.9 dB | 127.9 dB |
| Dimensions | 32.5"H x 26.5"W x 29.7"D (825.5 x 673.1 x 754.4 mm) | 31"H x 26"W x 24"D (787.4 x 660.4 x 609.6 mm) |
| Weight | 89.9 lbs (40.8 kg) | 297.6 lbs (135 kg) |
| Cabinet Color | black | wood, custom |
| Country | United States | Canada |
| Measurement Source | Brent Butterworth | Manufacturer |
| Drivers | 18" (457mm) driver | 24" (610mm) driver |
| Output SPL at 10 Hz | - | 101.0 dB |
| Output SPL at 12.5 Hz | - | 104.9 dB |
| Output SPL at 15 Hz | - | 111.8 dB |
| Output SPL at 100 Hz | - | 128.2 dB |
| Warranty | - | 3 |
Related Speaker Comparisons
More worthwhile head-to-heads for Funk Audio Ultra 24.0:
- Funk Audio Ultra 24.0 vs JTR Speakers Captivator S2
- Funk Audio Ultra 24.0 vs Power Sound Audio (PSA) V3600I
- Funk Audio Custom 21.0 vs Funk Audio Ultra 24.0
- JTR Speakers Growler (2015) vs Funk Audio Ultra 24.0
- Funk Audio Classic 18.0 vs Funk Audio Ultra 24.0
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 Rythmik FV25HP
- Harbinger V2218S vs Monoprice Monolith M-215
- Harbinger V2218S vs JTR Speakers Captivator 1400
- Harbinger V2218S vs JTR Speakers Captivator 2400ULF
- Harbinger V2218S vs Rythmik FV15HP
- See all 14 comparisons
Funk Audio Ultra 24.0: $9,761.14 eBay
Pros: Published CEA-2010 specifications list 120.0 dB at 20 Hz and 127.9 dB through 40-80 Hz. The sealed enclosure with 24” (610mm) driver has the headroom for demanding film bass in a large room.
Cons: The 787.4H x 660.4W x 609.6D mm cabinet and 135 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.
Full Funk Audio Ultra 24.0 review and specifications →
| CEA-2010-A Average (40-80Hz) | 127.9 dB |
|---|---|
| Cabinet Color | wood, custom |
| Country | Canada |
| Dimensions | 31"H x 26"W x 24"D (787.4 x 660.4 x 609.6 mm) |
| Drivers | 24" (610mm) driver |
| Enclosure | sealed |
| Measurement Source | Manufacturer |
| Output SPL at 10 Hz | 101.0 dB |
| Output SPL at 12.5 Hz | 104.9 dB |
| Output SPL at 15 Hz | 111.8 dB |
| Output SPL at 20 Hz | 120.0 dB |
| Output SPL at 25 Hz | 122.0 dB |
| Output SPL at 31.5 Hz | 123.0 dB |
| Output SPL at 40 Hz | 127.1 dB |
| Output SPL at 50 Hz | 129.9 dB |
| Output SPL at 63 Hz | 127.6 dB |
| Output SPL at 80 Hz | 127.0 dB |
| Output SPL at 100 Hz | 128.2 dB |
| Warranty | 3 |
| Weight | 297.6 lbs (135 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
- Funk Audio Ultra 24.0 vs Funk Audio Custom 21.0
- Funk Audio Ultra 24.0 vs Power Sound Audio (PSA) V3600I
- Funk Audio Ultra 24.0 vs JTR Speakers Captivator S2
- Funk Audio Ultra 24.0 vs JTR Speakers Growler (2015)
- Funk Audio Ultra 24.0 vs Funk Audio Classic 18.0
- Funk Audio Ultra 24.0 vs Monoprice Monolith 16 THX Ultra
- Funk Audio Ultra 24.0 vs Rythmik FV25HP
- Funk Audio Ultra 24.0 vs Monoprice Monolith M-215
- See all 17 comparisons