Klipsch - R-121SW Reference Series 12" 400W Powered Subwoofer - Black
Price range: $449.99–649.99
Brand: Klipsch
Category: Audio
A pair of Klipsch headphones featuring 12 inches drivers and 120 Hz–28 kHz frequency response.
PQS: 97 (computed 2026-05-21 07:07)
GTIN-14: 00743878046786
Key specs
A human-friendly subset of populated specs
Driver
12 inches
Frequency response
120 hertz - 28 kilohertz
Wireless (BT/WiFi)
No
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6501481 | 449.99 USD | In stock | View offer → | 2026-05-21 02:36 |
| walmart | 00743878046786 | 649.99 USD | In stock | View offer → | 2026-04-04 03:44 |
Recent price history (50)
Show price log (50 entries)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 449.99 USD | In stock | 2026-05-21 02:36 |
| bestbuy | 449.99 USD | In stock | 2026-05-20 02:29 |
| bestbuy | 449.99 USD | In stock | 2026-05-19 02:26 |
| bestbuy | 449.99 USD | In stock | 2026-05-18 02:27 |
| bestbuy | 649.99 USD | In stock | 2026-05-17 02:33 |
| bestbuy | 649.99 USD | In stock | 2026-05-16 02:38 |
| bestbuy | 649.99 USD | In stock | 2026-05-15 02:32 |
| bestbuy | 649.99 USD | In stock | 2026-05-14 02:38 |
| bestbuy | 649.99 USD | In stock | 2026-05-13 02:28 |
| bestbuy | 649.99 USD | In stock | 2026-05-12 02:33 |
| bestbuy | 649.99 USD | In stock | 2026-05-11 02:30 |
| bestbuy | 649.99 USD | In stock | 2026-05-10 02:39 |
| bestbuy | 649.99 USD | In stock | 2026-05-09 02:30 |
| bestbuy | 649.99 USD | In stock | 2026-05-08 02:40 |
| bestbuy | 649.99 USD | In stock | 2026-05-07 02:27 |
| bestbuy | 649.99 USD | In stock | 2026-05-06 02:31 |
| bestbuy | 649.99 USD | In stock | 2026-05-05 02:32 |
| bestbuy | 649.99 USD | In stock | 2026-05-04 02:40 |
| bestbuy | 649.99 USD | In stock | 2026-05-03 02:30 |
| bestbuy | 649.99 USD | In stock | 2026-05-02 02:25 |
| bestbuy | 649.99 USD | In stock | 2026-05-01 02:28 |
| bestbuy | 649.99 USD | In stock | 2026-04-30 02:37 |
| bestbuy | 649.99 USD | In stock | 2026-04-29 02:31 |
| bestbuy | 649.99 USD | In stock | 2026-04-28 02:41 |
| bestbuy | 649.99 USD | In stock | 2026-04-26 02:40 |
| bestbuy | 649.99 USD | In stock | 2026-04-25 02:37 |
| bestbuy | 649.99 USD | In stock | 2026-04-24 02:30 |
| bestbuy | 649.99 USD | In stock | 2026-04-23 02:33 |
| bestbuy | 649.99 USD | In stock | 2026-04-22 02:34 |
| bestbuy | 649.99 USD | In stock | 2026-04-21 02:37 |
| bestbuy | 649.99 USD | In stock | 2026-04-20 02:42 |
| bestbuy | 649.99 USD | In stock | 2026-04-19 02:34 |
| bestbuy | 649.99 USD | In stock | 2026-04-18 02:37 |
| bestbuy | 649.99 USD | In stock | 2026-04-17 02:41 |
| bestbuy | 649.99 USD | In stock | 2026-04-16 02:37 |
| bestbuy | 649.99 USD | In stock | 2026-04-15 02:38 |
| bestbuy | 649.99 USD | In stock | 2026-04-14 02:30 |
| bestbuy | 649.99 USD | In stock | 2026-04-13 02:33 |
| bestbuy | 649.99 USD | In stock | 2026-04-12 02:41 |
| bestbuy | 649.99 USD | In stock | 2026-04-11 02:39 |
| bestbuy | 649.99 USD | In stock | 2026-04-10 02:35 |
| bestbuy | 649.99 USD | In stock | 2026-04-09 02:40 |
| bestbuy | 649.99 USD | In stock | 2026-04-08 02:36 |
| bestbuy | 649.99 USD | In stock | 2026-04-07 01:36 |
| bestbuy | 449.99 USD | In stock | 2026-04-05 02:39 |
| walmart | 649.99 USD | In stock | 2026-04-04 03:44 |
| bestbuy | 449.99 USD | In stock | 2026-04-04 02:38 |
| walmart | 649.99 USD | In stock | 2026-04-03 04:12 |
| bestbuy | 449.99 USD | In stock | 2026-04-03 02:35 |
| walmart | 649.99 USD | In stock | 2026-04-02 03:56 |
Full specs
Show full spec table
| Driver | 12 inches |
|---|---|
| Frequency response | 120 hertz - 28 kilohertz |
| Wireless (BT/WiFi) | No |
| Reconciled at | 2026-03-06 10:20 |
Canonical JSON (expand)
{
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"gpu": {},
"core": {
"title": "Klipsch - R-121SW Reference Series 12\" 400W Powered Subwoofer - Black",
"seo_title": "Klipsch 1070408"
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"driver": "12 inches",
"wireless": "No",
"frequency_response": "120 hertz - 28 kilohertz"
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"model": "1070408",
"ports": {},
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"dimensions_in": "16.6 x 16 x 19.7 in"
},
"thermals": {},
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"labor": "Five Years",
"parts": "Five Years"
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Related products
Simple similarity over extracted specs (publish_set only)
Debug data (expand)
| Raw title | Klipsch - R-121SW Reference Series 12" 400W Powered Subwoofer - Black |
|---|---|
| Raw brand | Klipsch |
| Raw category | Best Buy > Home Audio & Speakers > Home Audio > Speakers > Home Subwoofers |
Canonical highlights (populated fields only)
| core.title | Klipsch - R-121SW Reference Series 12" 400W Powered Subwoofer - Black |
|---|---|
| core.seo_title | Klipsch 1070408 |
| audio.driver | 12 inches |
| audio.wireless | No |
| audio.frequency_response | 120 hertz - 28 kilohertz |
| brand | Klipsch |
| model | 1070408 |
| gtin14 | 00743878046786 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6501/6501481_sd.jpg |
| display.panel_type | IPS |
| category | audio |
| physical.depth_in | 19.7 |
| physical.width_in | 16.0 |
| physical.height_in | 16.6 |
| physical.weight_kg | 15.88 |
| physical.dimensions_in | 16.6 x 16 x 19.7 in |
| warranty.labor | Five Years |
| warranty.parts | Five Years |
| certifications.energy_star | False |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
{
"sku": 6501481,
"upc": "743878046786",
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"name": "Klipsch - R-121SW Reference Series 12\" 400W Powered Subwoofer - Black",
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"value": "Bass reflex",
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{
"name": "RMS Power",
"value": "200 watts",
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"name": "Peak Power Handling",
"value": "400 watts",
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"name": "Minimum Frequency Response",
"value": "120 hertz",
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"value": "28 kilohertz",
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"value": "Cone",
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"value": "1 inches",
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"value": "1",
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"value": "12 inches",
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"features": [
{
"feature": "New technology and cleaner bass\nRevamped 12” spun-copper thermoformed crystalline polymer woofers make the latest Reference subwoofers exceptionally light while providing low frequency response, minimal cone breakup, and degradation-free distortion."
},
{
"feature": "All-digital amplifier\nThe built-in, all-digital amplifier delivers ample power with high efficiency and true-to-source accuracy in reproduction, ensuring maximum efficiency for best-in-class output, detail, and power."
},
{
"feature": "Fron-firing driver\nThe built-in, all-digital amplifier delivers ample power with high efficiency and true-to-source accuracy in reproduction, ensuring maximum efficiency for best-in-class output, detail, and power."
},
{
"feature": "Low pass crossover and phase comtrol\nEnsures the subwoofer’s low-frequency tones blend with other Klipsch speakers and establish your ideal level of bass."
},
{
"feature": "Line LFE inputs\nReference subwoofers are compatible with your home theater receiver, no matter the make and model."
},
{
"feature": "MDF cabinet with scratch-resistant, textured wood grain vinyl\nStylish aesthetic with absolute durability that results in a seamless integration into any décor."
},
{
"feature": "High quality cabinet design\nReinforced 3/4\" MDF construction with all-new bracing design reduces cabinet vibration for less audible coloration and improved sonic accuracy."
},
{
"feature": "Low profile grille\nAdds refined look that is accoustically transparent."
}
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"longDescription": "Get earthshaking bass with the all new Next Gen Klipsch Reference subwoofer. The 12-inch spun-copper woofer produces rich, detailed base from the top to the bottom of the frequency response range from 28Hz to 120Hz. The all-digital amplifier in this Klipsch Reference II subwoofer provides a peak of 400W for powerful bass with a max output of 118dB.",
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Newegg raw specs
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