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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Friday, Nov 13
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At a glance
- Condition
- New
- Model
- SUB 100
- Dimensions
- 13.75"D x 13.19"W x 13.38"H
- Weight
- 28 lb
- Color
- Ebony
- Frequency Response
- 20 KHz
- Audio Output Mode
- Surround
- Warranty
- (2) years from the date of purchase
- Works with
- Klipsch Flexus System Speakers
Features 6
- WORKS EXCLUSIVELY WITH FLEXUS SOUND BARS: Subwoofer exclusively for Flexus CORE 100 and CORE 200 Sound Bars
- BIG BASS, SMALL FOOTPRINT: The Flexus 10 Subwoofer packs a lot of punch per square inch thanks to careful Klipsch engineering. Enjoy powerful bass with plenty of depth, thanks to a high- excursion paper cone woofer, without sacrificing the low latency and musicality typically displayed by larger subwoofers.
- KLIPSCH TRANSPORT TECH FOR ULTIMATE CONNECTIVITY: Klipsch Transport technology built into every Flexus product means your whole home entertainment ecosystem functions fast and efficiently. Setup is simple, latency is low, and booming bass is only a few cords away.
- PEACE OF MIND TESTING PROCESS: Thoroughly reviewed by a team of trusted engineers, over 1,000 rigorous tests were performed on Flexus products to ensure awesome audio performance and stellar interconnectivity.
- SIMPLE SETUP, SLEEK STYLE: Style matters. Thats why Klipsch Flexus was meticulously engineered down to the last millimeter with premium materials, thoughtful design, and calculated engineering for a family of products to fit any space or aesthetic.
- ECO-CONSCIOUS PACKAGING: Were committed to providing great sound for generations - which is why our packaging is designed to be earth-friendly, with careful consideration to minimize waste and maximize recyclability.
Description
The Flexus 10" Subwoofer packs a lot of punch per square inch thanks to careful Klipsch engineering. Enjoy powerful bass with plenty of depth without sacrificing the low latency and musicality typically displayed by larger subwoofers.
Specs 36
| Brand | Klipsch |
|---|---|
| Speaker Maximum Output Power | 80 watts |
| Frequency Response | 20 KHz |
| Connectivity Technology | USB Pre-Paired Dongle |
| Audio Output Mode | Surround |
| Mounting Type | Floor Standing |
| Enclosure Material | MDF, Vinyl |
| Speaker Type | Subwoofer |
| Additional Features | Wireless Connect |
| Antenna Location | For Televisions |
| Subwoofer Diameter | 10 inches |
| Color | Ebony |
| Is Waterproof | FALSE |
| Warranty Type | Limited |
| Control Method | App |
| Speaker Size | 10 inches |
| Woofer Diameter | 10 inches |
| Water Resistance Level | Not Water Resistant |
| Controller Type | Corded electric |
| Number of Audio Channels | 5.1 |
| Wireless Technology | Klipsch Transport |
| Subwoofer Connectivity Technology | Wireless |
| Connectivity Protocol | Bluetooth |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 10 inches |
| Model Number | SUB 100 |
| Model Name | Flexus SUB 100 |
| Built-In Media | Subwoofer |
| Number of Items | 1 |
| UPC | 743878066456 |
| Manufacturer | Klipsch |
| Age Range Description | Adult |
| Unit Count | 1 Count |
| Item Dimensions D x W x H | 13.75"D x 13.19"W x 13.38"H |
| Item Weight | 28 pounds |
| Power Source | Corded Electric |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Nov 13
Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Powerful Bass and Extremely Easy Setup!
⭐⭐⭐⭐⭐ **Powerful Bass and Extremely Easy Setup!** I’m very impressed with the Klipsch Flexus SUB 100. Setup was incredibly easy, and I had it installed and working with my system in no time. The wireless connection makes placement simple and eliminates the need to run an extra audio cable across the room. The 10-inch subwoofer adds a noticeable amount of deep, clean bass without sounding muddy or overpowering. Movies have much more impact, music sounds fuller, and it really adds another dimension to the overall listening experience. I also like the clean, understated design. It blends nicely into the room while still delivering the kind of bass you expect from Klipsch. If you already have a compatible Flexus system and want to take the sound to the next level, the SUB 100 is a worthwhile upgrade. **Easy installation, excellent bass, and great performance. 5 stars!**
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Reviewed in the United States on August 26, 2026 by Chris
Amazing Bass
Alright, buckle up for a bass-tastic ride with the Klipsch Flexus SUB 100 10” Wireless Subwoofer, the low-end lovechild of Klipsch and Onkyo that’s so thumpy it could wake a coma patient. This box of boom is built solely for Klipsch Flexus Core 100 or 200 soundbars, and it’s here to rattle your ribcage and your neighbor’s nerves with glorious, gut-punching lows. Picture a subwoofer that’s less “furniture” and more “earthquake simulator” for your living room. Sound: A Bass-Splosion of Epic Proportions This 10-inch paper cone beast, fueled by an 80W RMS (160W peak) Class D amp, doesn’t just play bass—it assaults you with it. I fired up Jurassic Park, and when that T-Rex roared, the Flexus SUB 100 made my couch shimmy like it was auditioning for a twerk team. The range delivers tight, precise lows that don’t blur into a muddy mess, unlike my uncle’s old sub that sounded like a washing machine full of bricks. From Dune’s sandworm rumbles to Metallica’s basslines, it’s crisp, punchy, and never farts out distortion. One X user raved it “shakes the room without waking the kids,” but let’s be real—crank it up, and your goldfish might start breakdancing. Klipsch Connect Plus App: Your Bass Wizard The Klipsch Connect Plus app is like having a wizard for your woof. Plug in the USB dongle, and this sub pairs faster than my mom swiping on Tinder. Adjust volume, crossover, phase, or slap on presets like Night Mode (for when your spouse threatens divorce over vibrations) or Bass Mode (for when you want to be the noise complaint). I tweaked the EQ to tame corner placement boom, and voila—no more windows rattling like a poltergeist’s tantrum. The app’s so easy, even my tech-phobic dad could make this sub sing. Design: Sneaky Sub Stealth At 13.38” x 13.19” x 13.75” and 20.7 lbs, this ebony-vinyl cube is sleeker than my attempts to slide into DMs. Its wireless 2.4GHz connection means no cable spaghetti, letting you hide it anywhere it’ll still annoy your HOA. Verdict The Klipsch Flexus SUB 100 is a bass-dropping, room-rocking riot that turns your soundbar into a sonic superhero. With app-controlled wizardry and lows tighter than my skinny jeans, it’s the funniest way to make your neighbors hate you.
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Reviewed in the United States on May 24, 2025 by David jones
Great quality
Purchased after the sound bar. Great addition and worth as thye sound greatly improved. Very east connection.
Reviewed in the United States on July 29, 2026 by Robert Scott
Deep bass, good looking and pretty Subwoofer.
Deep bass!! This Sub is not supposed to achieve sub 30Hz. However, I've played test clips from YouTube and I can hear and feel frequencies below 30Hz. The only issue I've found (if any) is that it can't be located near my router because it emits a weird clicking noise. This can be solved by connecting the Sub using a coax cable or relocating the sub farther away from the router.
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Reviewed in the United States on January 21, 2026 by Christian Ponce
BUT DISAPPOINTED,READ WHY
Here is why my 4 star rating is still disappointing. My Flexus Core 200 sound bar and (single) Flexus Sub 100, are marginal at best. However this review focuses mainly on the sub recently purchased. Packaging? OMG, I would rate that a 6+. The sub was enveloped with plastic, nestled in heavy standoff foam rubber and not staticky Styrofoam, and double boxed in heavy corrugated cardboard. You could have dropped this out of a plane. As for the unit itself? Heavy, solid, quality material and workmanship. A beefy feel to it when lifted and more than adequate protection for the 10" woofer. Unfortunately, that is where the impressiveness ends. Connectivity is sketchy and may take a few tries marrying the app to your phone and sound bar. Blue toothing the sub to the sound bar took a few tries due to unknown interruptions in the transport signal. You still need the app for best control, but here is where things get really wonky. Most sound systems indicate the sub can be placed anywhere in the listening area because it is only picking up the lows. Not so here, and Klipsch recommends it should be near the sound bar. Furthermore, if everything is mounted on a flat wall, you may not even hear the sub and this is where Klipsch suggests TWO subs with one on each side of the sound bar. Very fortunately for me, my TV and sound bar is located in a corner and I placed the sub behind that about 3" from each adjacent wall off the corners of the sub. Also to my benefit the TV stand has an open back so with the sub being behind that, there are no obstructions to the driver. Most powered subs wired or not have two adjustable controls; one for separate volume and one for a range of frequency response. Not here. There are NO adjustments on the sub itself, but you can make adjustments from the sound bar, the remote, or the app on you phone. However, the only targeted adjustment for the sub is for + or - response of the frequency, NOT VOLUME. Any selected volume level is for all connected components to the sound bar and not really individually. Regardless of all my negative comments, the sound is clear and concise. The bass is tight and not boomy, and the dialog boost works well for most receptions except for Prime Video. With Prime, any background noise or music drowns out speech even with the dialog enhancement Klipsch offers. Volume overall is lacking on the mustard. Max level of volume is disappointing and could have had a bit more snot to it, but it is extremely clear with no distortion. Finally price? Priced higher than you get what you pay for if that makes any sense. I can not tell you where my money could have been spent better. I can only tell you I am not willing to spend more to find out. Overall, I am going to settle for what I bought. The sound is very clear, just don't expect it to be really loud when you might want that. Hopefully the acoustics in your particular set up will give great sound. I can tell you a corner works best. I am sure I could get the best sound by adding surround speakers, but not willing to jump there yet. So in short: 5 on quality construction, 4 on sound clarity, 3 on volume and price, comes to an overall 4 stars. Just one last comment that I must add: the very impressive packaging for shipping has the phrase " LEGENDARY AMERICAN SOUND" stamped all over it. Just because the company is physically here in the USA, I am trying to get my head around that statement of patriotism with a European name, and 100% Japanese technology. Just sayin!
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Reviewed in the United States on January 2, 2026 by Guardrail
Adds plenty of depth!
I got the Flexus 200 sound bar, and added this subwoofer to add some depth to the overall sound signature. I like it so much that I am going to purchase a second unit so I can rattle the windows lol. Also, get the surround speakers; you won't regret it.
Reviewed in the United States on June 18, 2026 by Carl A.
Well worth the money!!
Awesome addition to my Flexus 200 soundbar! Hitting those low frequencies at lower volumes is great for apartment dwellers like me. Don't have to blast it to get bass and music/movies just sound better.
Reviewed in the United States on March 18, 2026 by bweir
Junk.
I’ll start by saying I’ve owned LOTS of Klipsch gear, theyve been my go to brand for over a decade now. That being said don’t buy this system until they figure out all the nonsense. Sound isn’t that great for being such a major collab between audio giants like this product is supposed to be. Only one subwoofer can be connected wirelessly. A second one had to be wired. Less than two months in and one of them started popping and crackling to where I literally thought people were setting off fireworks in my neighborhood till I realized it was actually my subwoofer. Klipsch customer service was absolutely useless, went around in circles for weeks and weeks with my issues for this Flexus System till I finally called Amazon and argued for about an hour to get a refund from Amazon directly to buy another system (go nakamichi you won’t be disappointed) Remote stops working and the only way it works again is unplugging your bar and replugging it in, which is a pain when it’s mounted on a wall. There’s a solid delay in sound when you start videos on any platform, like a solid five seconds and then it comes on. Doesn’t matter what you do, this delay is inevitable. System looks beautiful, I’ll give it that much. Doesn’t live up to any of my expectations.
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Reviewed in the United States on June 23, 2024 by Tyler Hinckley