Klipsch Flexus Core 100 + Surr 100 (set of 2) + Sub 100
Specifications and features
Overview
This modular system combines the Flexus Core 100 soundbar, the Sub 100 subwoofer, and a pair of Surr 100 surround speakers to create a complete wireless home theater system. Born from a collaboration between Klipsch and Onkyo, this system brings together American acoustic expertise and Japanese electronic precision in a scalable format that adapts to your space and your needs.
The Core 100 soundbar: compact yet generous
With its 71 cm width, the Flexus Core 100 fits naturally under a medium-sized TV. Its chassis blends metal and wood with a discreet ebony vinyl finish that favors understatement. A large front display clearly indicates the selected source and volume level, a practical detail for everyday use.
This 2.1-channel configuration integrates four drivers: two 57 mm aluminum-cone transducers for mids and highs, and two 101 mm paper-cone woofers dedicated to the lows. These allow the bar to extend down to 45 Hz without external help, which is notable for such a compact format. The amplification delivers 100 W RMS, enough to reach a maximum sound level of 96.4 dB.
The Core 100 natively processes Dolby Atmos through virtualization. Without physical upward-firing speakers, it uses signal processing algorithms to create a sense of height. This approach works well in smaller spaces where ceiling reflections remain effective.
The supplied Bluetooth remote is backlit, making it easy to use in the dark. It can also be replaced by the TV remote thanks to HDMI CEC, or by the Klipsch Connect Plus mobile app, which provides access to more advanced settings.
The Surr 100 speakers: discreet yet effective
Each surround speaker measures 17.1 cm in height, 10.5 cm in width, and 10.95 cm in depth. These compact dimensions make placement in the room easy, whether on shelves, consoles, or wall-mounted via the integrated threaded insert. They each weigh 1.13 kg and share the same black ebony vinyl finish as the soundbar.
Unlike many wireless surround speakers that require junction boxes or bulky power adapters, the Surr 100 plug directly into a wall outlet. Each speaker integrates its own power supply and connects to the soundbar via Klipsch Transport wireless technology. This streamlined approach avoids cables running across the floor and simplifies installation.
The 76 mm full-range paper-cone driver covers a frequency range from 235 Hz to 20 kHz. This single-driver design ensures tonal consistency across the entire reproduced range. Each speaker delivers 50 W RMS and can reach a sound pressure level of 103.5 dB, sufficient to fill medium-sized rooms without strain.
The Sub 100: bass that matters
The subwoofer adopts a cubic format: 34 cm high, 33.5 cm wide, and 34.9 cm deep. Weighing in at 9.4 kg, its MDF panel construction provides sufficient rigidity to withstand the internal pressures generated by the 25.4 cm driver. The sealed enclosure, less common than bass-reflex systems, offers more controlled transient response, at the cost of slightly less deep bass extension for a given volume.
The long-throw paper-cone transducer extends down to 26 Hz (±3 dB), covering most of the low-frequency spectrum used in movies and music. Class D amplification delivers 80 W RMS, with peaks up to 160 W. The maximum sound level of 103.7 dB guarantees comfortable dynamic headroom for the most intense action scenes.
Connection is either wireless via the supplied Klipsch Transport dongle, or wired via the RCA/LFE input. The wireless mode uses a 2.4 GHz frequency, identical to Wi‑Fi and Bluetooth, but Klipsch has optimized the protocol to minimize latency, which is critical for a subwoofer where any timing offset becomes noticeable.
Klipsch Transport technology serving modularity
All components of the Flexus system communicate via Klipsch’s proprietary Transport technology. This 2.4 GHz wireless protocol establishes fast connections between the soundbar, subwoofer, and surround speakers without requiring complex setup. Each additional module comes with its own Transport USB dongle that plugs into a dedicated port on the soundbar.
Pairing is automatic: simply plug in the dongle and power on the accessory. The system immediately recognizes the new components and adjusts its settings accordingly. If you add the surround speakers after using the soundbar alone for a few weeks, the change takes place without any special operation.
This architecture allows the system to be expanded gradually. You can start with the soundbar alone, then add the subwoofer a few months later, and complete the setup with the surround speakers when budget allows. The system supports up to two subwoofers simultaneously, an appealing option for large rooms or thrill-seekers who crave powerful low-frequency effects.
The Klipsch Connect Plus app
Available on iOS and Android, this app centralizes all advanced system settings. It offers several preconfigured listening modes (movie, music, surround, night) tailored to different situations. Night mode compresses dynamics to avoid disturbing others while maintaining intelligibility, while Dialogue Boost mode emphasizes vocal frequencies with three intensity levels.
The customizable equalizer lets you adjust bass, mids, and treble to taste. Left/right balance settings refine stereo imaging. The volume of the subwoofer and surround speakers can be controlled individually to balance the system according to the room’s acoustics.
The app also provides access to quick start guides, product manuals, how-to videos, and FAQs. It notifies you of available firmware updates and lets you install them easily. In case of problems, direct access to Klipsch support is built in.
A balance between performance and accessibility
This complete system offers a coherent entry point into modular home theater. The Core 100 soundbar delivers a dynamic, balanced sound that surpasses most TVs. Adding the Sub 100 significantly reinforces bass foundation and the sense of power, especially in action scenes. The Surr 100 speakers round out the sound envelope by creating genuine surround spatialization, even if they remain more understated than traditional home theater satellites.
The whole system performs best in small to medium-sized rooms. In a 20 m² living room with a seating distance of 2 to 3 meters from the soundbar, the system creates a convincing sound bubble. For larger spaces or higher expectations in terms of sound level and channel separation, the Flexus Core 200 or Core 300 models are natural upgrades.
The modular philosophy truly comes into its own here. Rather than imposing a fixed bundle, Klipsch lets each user build their setup according to their priorities. Some will prefer to add the subwoofer right away to beef up the bass, others will start with the surround speakers to widen the soundstage. Transport technology ensures that all these choices remain reversible and adjustable over time.
Technical specifications
Klipsch Flexus Core 100 soundbar
- Audio configuration
- 2.1 system with virtual Dolby Atmos height effect
- 2 speakers with 57 mm aluminum cones
- 2 elevation speakers with 101 mm paper-cone woofers
- Audio performance
- Maximum sound level: 96.4 dB
- Power: 100 W RMS
- Frequency response: 45 Hz – 20 kHz
- Connectivity
- Inputs: HDMI eARC, Bluetooth, USB-C, optical
- Outputs: RCA for additional subwoofer
- Dimensions: 76 × 711 × 127 mm (H × W × D)
- Weight: 4.54 kg
- Finish: ebony vinyl
- Included accessories
- Backlit Bluetooth remote control
- 2.0 m IEC power cable (depending on region)
- 1.5 m HDMI cable
- 2 AAA batteries
- Wall mounting brackets with complete mounting kit
- User manual
Klipsch Flexus Surr 100 rear speakers
- Acoustic system
- Speaker type: sealed (plastic, metal)
- Full-range driver: 7.6 cm paper cone
- Audio performance
- Maximum sound pressure level: 103.5 dB at 1 m
- Nominal power: 50 W RMS
- Frequency range: 235 Hz – 20 kHz
- Dimensions: 17.1 × 10.5 × 10.95 cm (H × W × D)
- Unit weight: 1.13 kg
- Power supply: 100–240 V / 50–60 Hz, built-in power supply
- Finish: ebony black vinyl
- Included accessories
- 2 angled 2.0 m mains power cables (depending on region)
- 1 Flexus wireless transmitter
- 1 user manual
Klipsch Flexus Sub 100 subwoofer
- Components
- 25.4 cm long-throw paper-cone woofer
- Amplification: Class D
- Audio performance
- Power: 80 W RMS, 160 W peak
- Frequency response: 26 Hz – 250 Hz ± 3 dB
- Maximum sound pressure level: 103.7 dB
- Construction
- Material: medium-density fiberboard (MDF)
- Type: sealed enclosure
- Connectivity
- Inputs: RCA / LFE line, 2.4 GHz Flexus Transport wireless
- Dimensions: 340 × 335 × 349 mm (H × W × D)
- Weight: 9.4 kg
- Finish: ebony vinyl
- Supplied accessories
- 2 angled 2.0 m mains power cords (depending on region)
- 1 wireless key with Klipsch Transport technology
- 1 user manual
Frequently Asked Questions
Can the Flexus Core 100 be used without adding the subwoofer and surround speakers?
Yes, the soundbar works perfectly on its own. Its two built-in 10 cm woofers allow it to go down to 45 Hz, which covers most music and dialogue. The subwoofer and speakers are options that enhance the system, but they are not mandatory components.
Do the surround speakers require speaker cables?
No. Each speaker plugs directly into a power outlet and communicates with the soundbar via the Klipsch Transport wireless connection. There are no speaker cables to run and no junction box to hide. This approach greatly simplifies installation while maintaining optimal transmission quality.
What is the difference between the Core 100’s virtual Dolby Atmos and the Core 200’s physical Dolby Atmos?
The Core 100 creates height effects via digital signal processing, without dedicated speakers aimed at the ceiling. The Core 200 features two transducers that physically project sound toward the ceiling, where it reflects before reaching the listener. The difference is most noticeable with native Dolby Atmos soundtracks, where height effects are more pronounced and better localized with the Core 200.
Can a subwoofer from another brand be connected?
Yes, the RCA output on the soundbar allows you to connect any active subwoofer with a line input. You can therefore reuse an existing subwoofer or choose a more powerful model if you want more low-frequency impact. The RCA output works in parallel with the wireless connection to the Sub 100.
Is the Klipsch Connect Plus app essential for operation?
No, the system works without the app. The supplied physical remote gives access to essential functions: volume, source selection, basic sound modes. The app mainly provides extra convenience, with the customizable EQ, fine-tuning of each channel, and access to firmware updates.
Can a second subwoofer be added?
Yes, the Flexus system supports up to two subwoofers simultaneously. This configuration suits large rooms or bass enthusiasts who want even more low-frequency impact. Simply get a second Sub 100 (or a Sub 200 to move upmarket) and plug its Transport dongle into the soundbar.
Does the wireless connection cause any delay between picture and sound?
No, Klipsch Transport technology has been specifically optimized to minimize latency. Tests show that the delay remains imperceptible to the ear, even in fast-paced action scenes where any desynchronization would be disturbing. The wired RCA connection remains available on the subwoofer for those who prefer a fully hardwired signal path.
What listening distance is recommended to get the most out of the system?
A distance of 2 to 3 meters between the listening position and the soundbar produces the best results in a medium-sized room. At this distance, the different drivers in the bar blend properly and the virtual Dolby Atmos spatialization works convincingly. For large rooms with distances greater than 4 meters, the Core 200 or Core 300 models will be more suitable.
- Eco-contribution included in the sale price.