Klipsch Flexus CORE 300 Black vs Monitor Audio SB-3
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Choosing between the Klipsch Flexus CORE 300 Black and Monitor Audio SB-3? Both compete in the Soundbar segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The Klipsch Flexus CORE 300 Black scores higher in value. The Monitor Audio SB-3 leads in form factor, room fit. They score similarly in ease of use.
These soundbars differ in channel configurations of 5.1.2 vs 3.0, and only the Klipsch Flexus CORE 300 Black includes Dolby Atmos support. Atmos adds a height dimension to surround sound, placing sounds above you. It's object-based, so the receiver decides which speakers reproduce each sound based on your layout.
These two Soundbar options trade wins across different dimensions. The right choice depends on which specs matter most for your room and listening preferences — review the detailed table below to decide.
For most home theaters, the Monitor Audio SB-3 is the stronger choice — it leads in 2 of 4 scored dimensions. The Klipsch Flexus CORE 300 Black makes more sense if you prioritize the 1 dimension where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Klipsch Flexus CORE 300 Black
Monitor Audio SB-3
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Channel Config | 5.1.2 | 3.0 |
| Total Power (RMS) | 185W | — |
| Driver Count | 13 | 7 |
| Freq Response Low | 43Hz | 80Hz |
| Freq Response High | 20000Hz | 30000Hz |
| Passive | No | Yes |
| Dolby Atmos | Yes | No |
| Dolby Digital+ | Yes | No |
| Dolby TrueHD | No | No |
| DTS:X | No | No |
| DTS Virtual:X | No | No |
| DTS-HD Master | No | No |
| Built-in Sub | Yes | No |
| Wireless Sub Included | No | No |
| Wireless Sub Support | Yes | No |
| Wireless Surround Support | Yes | No |
| HDMI eARC | Yes | No |
| HDMI Inputs | 1 | 0 |
| HDMI Version | 2.1 | — |
| Optical Input | Yes | No |
| Analog Stereo In | No | No |
| Sub Pre-Out | Yes | No |
| Ethernet | No | No |
| Bluetooth | Yes | No |
| BT Version | 5.3 | — |
| Wi-Fi | Yes | No |
| Wi-Fi Standard | — | — |
| AirPlay 2 | Yes | No |
| Chromecast | No | No |
| Spotify Connect | Yes | No |
| Voice Assistants | ||
| Room Calibration | Dirac Live | — |
| Dialog Enhancement | Yes | No |
| Night Mode | Yes | No |
| App Control | Klipsch Connect | — |
| Wall Mountable | Yes | Yes |
Key Differences
- Freq Response Low: Klipsch Flexus CORE 300 Black at 43Hz vs Monitor Audio SB-3 at 80Hz. Determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support.
- Driver Count: Klipsch Flexus CORE 300 Black at 13 vs Monitor Audio SB-3 at 7
- Channel Config: Klipsch Flexus CORE 300 Black at 5.1.2 vs Monitor Audio SB-3 at 3.0
- Freq Response High: Klipsch Flexus CORE 300 Black at 20000Hz vs Monitor Audio SB-3 at 30000Hz
- Total Power (RMS): Klipsch Flexus CORE 300 Black at 185W vs Monitor Audio SB-3 at —
Which Should You Choose?
Choose Klipsch Flexus CORE 300 Black if you want:
- + better freq response low — determines how much bass a speaker handles on its own versus relying on a subwoofer for low-end support
See Where These Rank
Check our editorial rankings to see how Klipsch Flexus CORE 300 Black and Monitor Audio SB-3 compare to the rest of the field.
Best Soundbar RankingsSpecifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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