KlipschFlexus SUB 100 10" Wireless Subwoofer - Black. for Use Only Flexus Sound Bars

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 ProportionsThis 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 WizardThe 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 StealthAt 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.VerdictThe 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.

Sounds great and had to turn the bass down once I got the sound bar adjusted. Sounds better than my Klipsch sound bar 48. This sub has good range and perfect for our living room.

Sounds fantastic with the Flexus Core 200 soundbar and blends in very nicely with living room decor! Plenty of adjustments on the remote and Klipsch connect app to suit your needs. Don't listen to the naysayers. This sub works great wired directly to the soundbar or via wireless transmitter. I personally use the wired set up. Highly recommended addition to the Flexus Core 100 or 200 soundbar.

Really sounds very good for its size. Blends in with my organizer nicely. Very happy with this purchase as I really like Klipsch products.

Unit would not pair with Core 200 sound bar. Sending back. Using a wired 200 watt Jamo. Sounds great. The klipsch can be wired but lacks any control. If it would pair I would have kept it. Maybe the sound bar is defective but I'm keeping that. Not sure why it wouldn't pair. They both went into pairing mode but couldn't connect . Couldn't pair the surround speakers either. They were only 10 ft apart. My previous sound bar was a Bose Ultra which had pairing issues also and stopped working after 3 days of usage. It sounded alot better than the klipsch but was alot more money. Sent it back also. Hopefully my problems are over. I think wired is the way to go, especially with a sub. Just my opinion

Outstanding sound!

Love the sound and ease of connectivity with the Focus 200 Soundbar.Not happy with the isolation feet. As speaker placement is on ceramic tile.Current pads are 1/8 inch rubber!!!! What is up with that.And unable to unscrew as with other Klipsch subs.Have just ordered isolation pads and hope that I can make it work.

I recently purchased this sub and Flexus 200 soundbar for my theater room. In my main living room, I have a much pricey Klispsch Reference 5.2.4 setup. This soundbar and sub competes very well with my other setup. I’ve very impressed with its capabilities. Sound is clear and crisp. Highly recommend!