The Harbottle Audio C18 L1 ranks #66 out of 97 total Large Powered Home Subwoofers (Over 75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#66 Harbottle Audio C18 L1: $5,331.56
How it compares: Just above it: Velodyne Acoustics DD-15+ - $532 cheaper. Just below it: HSU Research VTF-15H - $4133 cheaper.
| CEA-2010-A Average (40-80Hz) | 118.5 dB |
|---|---|
| Cabinet Color | black, white, red, blue |
| Country | Canada |
| Dimensions | 26.38"H x 22.76"W x 18.11"D (670.1 x 578.1 x 460.0 mm) |
| Driver | 18" (457mm) driver |
| Driver(s) | (1) 18 inch |
| Enclosure | ported |
| Measurement Source | Manufacturer |
| Output SPL at 10 Hz | 93.0 dB |
| Output SPL at 12.5 Hz | 98.0 dB |
| Output SPL at 15 Hz | 102.0 dB |
| Output SPL at 20 Hz | 108.0 dB |
| Output SPL at 25 Hz | 112.0 dB |
| Output SPL at 31.5 Hz | 117.0 dB |
| Output SPL at 40 Hz | 119.0 dB |
| Output SPL at 50 Hz | 119.0 dB |
| Output SPL at 63 Hz | 118.0 dB |
| Output SPL at 80 Hz | 118.0 dB |
| Output SPL at 100 Hz | 117.5 dB |
| Output SPL at 125 Hz | 117.0 dB |
| Weight | 86 lbs / 39.0 kg |
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Product prices and availability were last checked July 31, 2026 at 5:30 AM UTC 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.