The JTR Speakers Kallos 12Sub is rated 4.5/5 for sound quality, #2 of 212 Medium Home Subwoofers (30-75 lbs) on an estimated rating, since it has not been measured or compared side by side yet. See all Subwoofers rankings for every top pick.
Prices on this page were last checked November 14, 2026 at 6:17 PM 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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Brand: JTR Speakers
#2 JTR Speakers Kallos 12Sub: $3,699 JTR Speakers $3,699 eBay
Pros: A compact sealed 12 inch subwoofer with a very powerful amplifier, smooth tuning and high output in a Baltic birch cabinet. A compact sealed subwoofer with a 12-inch driver and a 2,000W RMS Class D amplifier, with DSP tuning for a smooth response and high output. JTR rates it at 22Hz to 800Hz within 3dB outdoors, with in-room gain extending it lower. The cabinet is stacked Baltic birch, about 48cm square and 32cm deep.
Cons: Erin’s Audio Corner tested it outdoors on video, but CEA-2010 output figures in the form the other subwoofers here are ranked on haven’t been published, so it can’t be placed against them. At $3,699 it is expensive for a single 12-inch subwoofer, and it is sold mainly direct from JTR.
| Released | Around 2026 (this year) |
|---|---|
| Amplifier Power | 2000W RMS (Class D) |
| Cabinet Material | Stacked Baltic birch |
| Country | United States |
| Dimensions | 18.7”H x 18.7”W x 12.8”D (476 x 476 x 324 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | sealed |
| Frequency Response | 22Hz - 800Hz (+/-3dB outdoor) (Manufacturer specified) |
| Warranty | 5/3 |
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Head-to-Head Comparisons
2 comparisons- JTR Speakers Kallos 12Sub vs JTR Speakers Captivator RS1
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