JTR Speakers Growler (2015) vs Funk Audio Classic 18.0

Short answer: the JTR Speakers Growler (2015). It ranks #13 of 110 subwoofers by sound quality at $2995; the Funk Audio Classic 18.0 ranks #16 and costs $4893.35, so there is not much of a tradeoff to weigh.

What the JTR Speakers Growler (2015) offers: 12-inch ported driver reaches 130.2dB CEA-2010-A average, nearly matching the class leader for about $1,000 less. Watch for: Ported design room interaction, 45 kg size, and $2,995 cost.

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 JTR Speakers Growler (2015). It ranks higher for sound quality than the Funk Audio Classic 18.0 and costs less, so there is no real case for the other one.

Still deciding? The full Subwoofers rankings cover every ranked option.

Specifications Side By Side

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• JTR Speakers Captivator S2 vs JTR Speakers Growler (2015)
• JTR Speakers Growler (2015) vs Funk Audio Ultra 24.0
• Danley Sound Labs DTS10 vs JTR Speakers Growler (2015)

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

JTR Speakers Growler (2015): $2995 Passive eBay

Pros: 12-inch ported driver reaches 130.2dB CEA-2010-A average, nearly matching the class leader for about $1,000 less.

Cons: Ported design room interaction, 45 kg size, and $2,995 cost.

Notes: Looks like “PA sub”

Full JTR Speakers Growler (2015) review and specifications →

CEA-2010-A Average (40-80Hz)	130.2 dB
Country	United States
Dimensions	22.5"H x 30"W x 20"D (571.5 x 762.0 x 508.0 mm)
Drivers	12" (305mm) driver
Enclosure	ported, front
Measurement Source	Data-bass
Output SPL at 20 Hz	92.8 dB
Output SPL at 25 Hz	97.2 dB
Output SPL at 31.5 Hz	106.6 dB
Output SPL at 40 Hz	122.7 dB
Output SPL at 50 Hz	130.0 dB
Output SPL at 63 Hz	133.6 dB
Output SPL at 80 Hz	134.4 dB
Output SPL at 100 Hz	135.5 dB
Output SPL at 125 Hz	136.0 dB
Passive	Yes
Weight	100.1 lbs (45.4 kg)

• 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
  • JTR Speakers Growler (2015) vs Danley Sound Labs DTS10
  • JTR Speakers Growler (2015) vs Harbinger V2218S
  • JTR Speakers Growler (2015) vs Funk Audio Ultra 24.0
  • JTR Speakers Growler (2015) vs JTR Speakers Captivator S2
  • JTR Speakers Growler (2015) vs Monoprice Monolith 16 THX Ultra
  • JTR Speakers Growler (2015) vs Reaction Audio PV-15X
  • JTR Speakers Growler (2015) vs Pro Audio Technology LFC-24sm
  • JTR Speakers Growler (2015) vs Rythmik FV25HP
  • See all 22 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
  • Funk Audio Classic 18.0 Website
• 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 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
  • Funk Audio Classic 18.0 vs JTR Speakers Captivator S2
  • See all 17 comparisons