About the Klipsch Flexus SUB 100
Bring the bass
The compact Klipsch Flexus SUB 100 is easy to tuck away and adds powerful bass to your favorite movies and music.
Bring the bass
Klipsch's Flexus sound bars offer surprisingly strong bass by themselves, but if you can easily add even deeper bass to your system — it's basically a no-brainer. The SUB 100 gives you just that, delivering low-frequency rumble that helps you feel your favorite movies and video games.
Simple setup
This subwoofer can be set up in just a few minutes. Plug the included wireless USB transmitter into the back of your compatible Klipsch sound bar, press a couple buttons to pair them together, and it's go time. The sub's compact, wireless design also makes it easy to find the right spot. (You'll just need to plug it into an AC outlet.)
Firsthand listening impressions
I've been a fan of Klipsch's classic sound for years — we made frequent use of one of their tabletop speakers back when I was a trainer in our call center. So I was excited to snag a sample of the Flexus CORE 200 sound bar and "test-drive" it before its release.
Even cooler, I also got a hold of the matching SUB 100 wireless subwoofer and SURR 100 rear speakers. I tested the system by progressively adding more components as I went. Perhaps not surprisingly, my favorite experience was the full system — bar, sub, and surrounds — playing together. But the CORE 200 rocked hard all by itself, offering expansive sound, clear detail, and solid bass for such a slim bar.
Delicious dungeon sounds and '90s nostalgia
I started my test with my current binge-watching favorite: contemporary Japanese anime series Delicious in Dungeon. I found I could track all the dialogue with ease, even without activating the bar's voice enhancement feature. That clarity persisted even as the episode got chaotic and the show's misfit heroes battled for survival against a mad mage. The bar perfectly captured the sizzle of spells and monster food cooking on a pan.
For the next phase, I hooked up the SUB 100 by plugging its included USB transmitter into the back of the sound bar. Then I switched over to X-Men '97, an update to an old favorite from my childhood. The subwoofer's extra bass added tactile vibrations to the action, thumping with each impact as my favorite mutants smashed into sentinels left and right. The bar's bass was good, but nothing beats the rumble of a dedicated subwoofer.
Swords, spears, and legendary heroes
For my final test, I hooked up the SURR 100 rear speakers and fired up my PS5. I jumped into Wo Long: Fallen Dynasty, a dark fantasy game version of the Chinese literary classic Romance of the Three Kingdoms. Where else could I hear the singing steel of twin blades carving through demon shrimp pirates?
As I charged through a level of burning ships lashed together, I could track the sounds of battle in the distance, hear the creak of wood under strain all around me, and follow the dialogue of my allied NPCs as they trailed behind in my wake. Each well-timed sword parry offered up a satisfying clang before the thunder of my cinematic finishing moves. The combination of bar + sub + surrounds filled my room with crisp, detailed sound and made me feel like I was being transported right into the action.
Powered by Onkyo
Klipsch's Flexus system was rigorously reviewed by their sister-company Onkyo with over 1,000 different tests to ensure both pristine audio performance and seamless wireless connectivity.
Product highlights:
- add deeper bass to Klipsch Flexus sound bars
- up to two subs can be paired at a time (second sub sold separately)
- 10" long-throw paper cone woofer
- acoustic suspension (sealed) MDF enclosure
- built-in 80-watt RMS Class D amplifier
- sleek, compact design blends well into most rooms
- max output: 103.7 dB
- frequency response: 26-250 Hz (±3dB)
General info and connections:
- connects wirelessly to sound bar using included Flexus Transport USB transmitter
- AC power required
- mono-RCA LFE input (for optional wired connection)
- ebony vinyl finish
- 13-3/16"W x 13-5/16"H x 13-7/8"D
- weight: 20.7 lbs.
- warranty: 2 years
- MFR # 1072077
What's in the box:
Klipsch Flexus SUB 100 owner's manual
- Wireless powered sub
- USB wireless dongle
- 6.5' AC power cord
- User Manual
Customer reviews for Klipsch Flexus SUB 100
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Average review:
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More details on the Klipsch Flexus SUB 100
Features & specs
| Connections | ||
|---|---|---|
| Ethernet Port | No | |
| USB-A Port | No | |
| USB-B Port | No | |
| 3.5mm Input | Wireless, RCA | |
| RCA Input | ||
| XLR Input | No | |
| Phono Input | No | |
| Digital Input | No | |
| HDMI Input | No | |
| Headphone Jack | No | |
| Subwoofer Output | No | |
| Wireless Features | ||
| Bluetooth | No | |
| Wi-Fi | Yes | |
| Wi-Fi Bands | No | |
| Audio Specs | ||
| Max. Digital Audio Bit Depth | Not given | |
| Max. Digital Audio Sample Rate | Not given | |
| High-res Audio Playback | ||
| From Network | No | |
| From USB Thumb Drive (USB-A) | No | |
| From Computer (USB-B) | No | |
| Ecosystems | ||
| Apple AirPlay | No | |
| Apple AirPlay 2 | No | |
| DTS Play-Fi | No | |
| Chromecast built-in | No | |
| Roon | No | |
| Sonos | No | |
| HEOS | No | |
| MusicCast | No | |
| SoundTouch | No | |
| Bose Home Speaker | No | |
| WiSA | No | |
| BluOS | No | |
| Klipsch Stream | No | |
| KEF Stream | No | |
| Music Services | ||
| Amazon Music | No | |
| Apple Music | No | |
| iHeart Radio | No | |
| Pandora | No | |
| Qobuz | No | |
| SiriusXM | No | |
| Spotify | No | |
| Tidal | No | |
| TuneIn | No | |
| YouTube Music | No | |
| Control | ||
| Handheld Remote | No | |
| Control by app | Apple iOS, Android | |
| Amazon Alexa | No | |
| Google Assistant | No | |
| Other Specs | ||
| Width (Inches) | 13.1875 | |
| Height (Inches) | 13.3125 | |
| Depth (Inches) | 13.875 | |
| Parts Warranty | 2 Years | |
| Labor Warranty | 2 Years | |
Product Research
Features
Klipsch Flexus Series: The Flexus Series powered subwoofer combines Klipsch iconic American audio sound with the technical audio precision of Japanese engineering from Onkyo for a strategic partnership that delivers an outstanding listening experiences. This collaboration with Onkyo infuses hundreds of years of expertise, innovation and extensive testing protocols - representing a deliberate stride toward perfecting every aspect of sound reproduction within a Klipsch Flexus powered sub. Over 1,000 rigorous tests were conducted to ensure great quality and performance in the all-new Flexus powered subwoofer. This meticulous approach scrutinized every detail for impactful and immersive deep bass reproduction.
10" Powered Subwoofer: The Klipsch Flexus Sub 100 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 inside a sealed MDF enclosure and powered by a built-in 80 watt (RMS) / 160 watt (Peak) Class D amplifier.
Wireless Connectivity: The Flexus Sub 100 connects wirelessly to a Klipsch Flexus Series soundbar (including the Core 100 and Core 200). A wireless USB dongle is provided that plugs into the USB-A port on back of a compatible Flexus Series soundbar. Simply press and hold the "Pairing" button on the back of the powered sub to wirelessly connect the Flexus Series soundbar and Flexus Sub 100 together. The Klipsch Flexus Sub 100's wireless connection delivers articulate, low-latency bass response. Up to two Flexus Sub 100s can be connected to one Klipsch Flexus Series soundbar. By having two identical 10" powered subwoofers, you’ll smooth out the peaks and nulls typically experienced by a single subwoofer arrangement.
Mono-RCA Input: If you prefer a wired connection, the Flexus Sub 100 is outfitted with a mono-RCA input that connects to a Flexus Series soundbar's mono-RCA output to deliver your soundtrack's LFE (low frequency effect) audio signal. A subwoofer cable is required and sold separately.
Note: Because the low pass crossover of the Flexus Sub 100 has been specifically optimized for Klipsch Series soundbars and is not adjustable, it should only be used with a compatible Flexus Series soundbar and not be used other brands or models of soundbar speakers.
Controls: You can adjust the bass output level of the Flexus Sub 100 powered subwoofer using the included BLE remote that comes with a compatible Klipsch Flexus Series soundbar or using the Klipsch Connect Plus app (for Apple iOS and Android OS) on your compatible smartphone or tablet device.
Placement Options: Corner placement of the Flexus Sub 100 will increase the amount of bass output, while placing the powered subwoofer along the middle of a wall, or out in the room will decrease the amount of bass output.
Power Requirements: The Klipsch Flexus Sub 100 comes with a detachable 6.5' AC power cord (C7, 2-prong) that will plug into the back of the powered subwoofer and into an AC power outlet or surge-protector/line-conditioner (sold separately).
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