Short answer: the Funk Audio Classic 18.0 if sound quality matters most, the SVS SB13-Plus if price matters most. The Funk Audio Classic 18.0 ranks #16 of 110 subwoofers at $4893.35. The SVS SB13-Plus ranks #108 at $1399, $3494.35 cheaper.
What the SVS SB13-Plus offers: Independent CEA-2010 testing records 92.3 dB at 20 Hz and 108.1 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with 13” (330mm) driver delivers substantial 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 431.8H x 431.8W x 457.2D mm cabinet and 43.1 kg mass still require deliberate placement and calibration.
What the Funk Audio Classic 18.0 offers: Independent CEA-2010 testing records 106.5 dB at 20 Hz and 127.3 dB through 40-80 Hz. The sealed 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 571.5H x 558.8W x 520.7D mm cabinet and 52.2 kg mass still require deliberate placement and calibration.
Buy the SVS SB13-Plus if the price matters more than sound quality. Buy the Funk Audio Classic 18.0 if sound quality matters more than the price.
The SVS SB13-Plus is not a sound-quality pick. It sits near the bottom of the 110 subwoofers; there are better options higher up.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| SVS SB13-Plus | Funk Audio Classic 18.0 | |
|---|---|---|
| Price | $1399 | $4,893.35 |
| Ranked | #108 of 110 in Large Home Subwoofers (Over 75 lbs) | #16 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 20 Hz | 92.3 dB | 106.5 dB |
| Output SPL at 25 Hz | 97.2 dB | 111.7 dB |
| Output SPL at 31.5 Hz | 97.2 dB | 119.0 dB |
| Output SPL at 40 Hz | 108.1 dB | 124.6 dB |
| Output SPL at 50 Hz | 108.1 dB | 126.8 dB |
| Output SPL at 63 Hz | 108.1 dB | 128.4 dB |
| CEA-2010-A Average (40-80Hz) | 108.1 dB (avg of 3/4 bands) | 127.3 dB |
| Dimensions | 17"H x 17"W x 18"D (431.8 x 431.8 x 457.2 mm) | 22.5"H x 22"W x 20.5"D (571.5 x 558.8 x 520.7 mm) |
| Weight | 95 lbs (43.1 kg) | 115.1 lbs (52.2 kg) |
| Warranty | 5 | 3 |
| Country | United States | Canada |
| Measurement Source | Brent Butterworth | Data-bass |
| Drivers | 13" (330mm) driver | 18" (457mm) driver |
| 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 |
| Output SPL at 80 Hz | - | 129.6 dB |
| Output SPL at 100 Hz | - | 130.2 dB |
| Output SPL at 125 Hz | - | 130.8 dB |
| Cabinet Color | - | wood, custom |
Related Speaker Comparisons
More top alternatives to Funk Audio Classic 18.0:
- JTR Speakers Captivator S2 vs Funk Audio Classic 18.0
- Funk Audio Classic 18.0 vs Funk Audio Ultra 24.0
- Funk Audio Classic 18.0 vs Funk Audio Custom 21.0
- JTR Speakers Growler (2015) vs Funk Audio Classic 18.0
- Harbinger V2218S vs Funk Audio Classic 18.0
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
SVS SB13-Plus: $1399 eBay
Pros: Independent CEA-2010 testing records 92.3 dB at 20 Hz and 108.1 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with 13” (330mm) driver delivers substantial 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 431.8H x 431.8W x 457.2D mm cabinet and 43.1 kg mass still require deliberate placement and calibration.
Full SVS SB13-Plus review and specifications →
| CEA-2010-A Average (40-80Hz) | 108.1 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 17"H x 17"W x 18"D (431.8 x 431.8 x 457.2 mm) |
| Drivers | 13" (330mm) driver |
| Enclosure | sealed |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 92.3 dB |
| Output SPL at 25 Hz | 97.2 dB |
| Output SPL at 31.5 Hz | 97.2 dB |
| Output SPL at 40 Hz | 108.1 dB |
| Output SPL at 50 Hz | 108.1 dB |
| Output SPL at 63 Hz | 108.1 dB |
| Warranty | 5 |
| Weight | 95 lbs (43.1 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
- SVS SB13-Plus vs Monoprice THX 121456
- SVS SB13-Plus vs BK Electronics Monolith-DF
- SVS SB13-Plus vs RSL (Rogersound Labs) Speedwoofer 12S
- SVS SB13-Plus vs HSU Research VTF-3 MK3
- SVS SB13-Plus vs Rythmik F18
- SVS SB13-Plus vs SVS PB-4000
- SVS SB13-Plus vs HSU Research VTF-3 MK5 HP
- SVS SB13-Plus vs Rythmik FV15HP
- See all 16 comparisons
Funk Audio Classic 18.0: $4,893.35 eBay
Pros: Independent CEA-2010 testing records 106.5 dB at 20 Hz and 127.3 dB through 40-80 Hz. The sealed 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 571.5H x 558.8W x 520.7D mm cabinet and 52.2 kg mass still require deliberate placement and calibration.
Notes: Data-bass labeled this sub as ‘FW18.0’, but original name is 18.0
Full Funk Audio Classic 18.0 review and specifications →
| CEA-2010-A Average (40-80Hz) | 127.3 dB |
|---|---|
| Cabinet Color | wood, custom |
| Country | Canada |
| Dimensions | 22.5"H x 22"W x 20.5"D (571.5 x 558.8 x 520.7 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | sealed |
| Measurement Source | Data-bass |
| 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 |
| Output SPL at 20 Hz | 106.5 dB |
| Output SPL at 25 Hz | 111.7 dB |
| Output SPL at 31.5 Hz | 119.0 dB |
| Output SPL at 40 Hz | 124.6 dB |
| Output SPL at 50 Hz | 126.8 dB |
| Output SPL at 63 Hz | 128.4 dB |
| Output SPL at 80 Hz | 129.6 dB |
| Output SPL at 100 Hz | 130.2 dB |
| Output SPL at 125 Hz | 130.8 dB |
| Warranty | 3 |
| Weight | 115.1 lbs (52.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Data-bass; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Funk Audio Classic 18.0 vs Harbottle Audio C24 L2
- Funk Audio Classic 18.0 vs Harbinger V2218S
- Funk Audio Classic 18.0 vs Monoprice Monolith 16 THX Ultra
- Funk Audio Classic 18.0 vs JTR Speakers Growler (2015)
- Funk Audio Classic 18.0 vs Funk Audio Custom 21.0
- Funk Audio Classic 18.0 vs Funk Audio Ultra 24.0
- Funk Audio Classic 18.0 vs Rythmik FV25HP
- Funk Audio Classic 18.0 vs Monoprice Monolith M-215
- See all 17 comparisons