Short answer: the Kii THREE for better sound quality, the Focal Twin6 Be for the lower price. The Kii THREE ranks #3 of 68 powered bookshelf speakers, rated 4.9/5, at $16,970. The Focal Twin6 Be ranks #62, rated 3.8/5, at $4,400, $12,570 cheaper.
The case for the Kii THREE: Exceptionally even measured balance: the 300Hz-5kHz response spans only 1.2dB, with preference scores of 7.70 standalone and 8.35 with an ideal subwoofer. The tradeoff: Deep-bass output has limits: demanding low-frequency material at high levels can trigger compression or audible distress.
The case for the Focal Twin6 Be: The dual-woofer arrangement offers useful output capability for studio work, with a 48.3Hz measured -3dB point in the horizontal test. The catch: The horizontal measurement scores 6.06 with an ideal subwoofer and spans 2.9dB from 300Hz to 5kHz.
Buy the Kii THREE if sound quality is the priority over the price, or the Focal Twin6 Be if the price is the priority over sound quality.
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Specifications Side By Side
| Kii THREE | Focal Twin6 Be | |
|---|---|---|
| Price | $16,970 per pair | $4,400 per pair |
| Ranked | #3 of 68 in Large Size Powered Bookshelf Speakers | #62 of 68 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 28Hz (measured, Erin’s Audio Corner) | 48.3Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 20.5Hz (measured, Erin’s Audio Corner) | 39.1Hz (measured, Erin’s Audio Corner) |
| Drivers | Four 6.5” woofers; 5” midrange; 1” waveguided tweeter | 1” inverted beryllium tweeter; dual 6.5” W-cone drivers |
| Amplifier Power | 1,500W total per speaker; Six Ncore channels | 150W LF + 100W LF/MF + 100W HF |
| Coverage | DSP-controlled cardioid above approximately 70-90Hz | - |
| Dimensions | 15.7”H x 7.9”W x 15.7”D | 9.8” x 19.7” x 13.4” (250 x 500 x 340 mm) (H x W x D) |
| Weight | 42.1 lbs (19.1 kg) each | 48.5 lbs (22 kg) |
| DSP | Yes; boundary, contour, phase-exact and low-latency modes | - |
| Spinorama Preference Score | 7.70 | 4.04 |
| Spinorama Preference Score with Perfect Sub | 8.35 | 6.06 |
| Inputs | XLR (analog), XLR AES/EBU (digital), proprietary KiiLink digital multi-pin | Balanced XLR with +4dBu/-10dBV sensitivity |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | Yes | No |
| Aux Input | No | No |
| Bluetooth | No | No |
| Frequency Response | 20Hz - 20kHz (-6dB at 20Hz; ±0.5dB 100Hz-10kHz; ±1dB 10kHz-20kHz) (Manufacturer specified) | 40Hz - 40kHz (±3dB) (Manufacturer specified) |
| Bass Extension | - | 40Hz manufacturer specified; Erin measured strong low-frequency linearity |
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Prices on this page were last checked September 29, 2026 at 3:43 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Kii THREE: $16,970 per pair Vintage King eBay
Pros: Exceptionally even measured balance: the 300Hz-5kHz response spans only 1.2dB, with preference scores of 7.70 standalone and 8.35 with an ideal subwoofer. Cardioid control reduces rearward low-midrange energy, while measured -3dB extension of 29.3Hz provides convincing full-range bass in a compact system. Measured bass extension of 28Hz (-3dB).
Cons: Deep-bass output has limits: demanding low-frequency material at high levels can trigger compression or audible distress. The reviewer preferred a small treble reduction, so the high score is not a promise of ideal tonal balance for every listener. Linear-phase operation adds latency, and the system is expensive.
Full Kii THREE review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 1,500W total per speaker; Six Ncore channels |
| Aux Input | No |
| Bass Extension (-10dB) | 20.5Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 28Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Coverage | DSP-controlled cardioid above approximately 70-90Hz |
| DSP | Yes; boundary, contour, phase-exact and low-latency modes |
| Dimensions | 15.7”H x 7.9”W x 15.7”D |
| Drivers | Four 6.5” woofers; 5” midrange; 1” waveguided tweeter |
| Frequency Response | 20Hz - 20kHz (-6dB at 20Hz; ±0.5dB 100Hz-10kHz; ±1dB 10kHz-20kHz) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR (analog), XLR AES/EBU (digital), proprietary KiiLink digital multi-pin |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 7.70 |
| Spinorama Preference Score with Perfect Sub | 8.35 |
| TRS Input | No |
| USB Input | No |
| Weight | 42.1 lbs (19.1 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Focal Twin6 Be: $4,400 per pair Amazon eBay
Pros: The dual-woofer arrangement offers useful output capability for studio work, with a 48.3Hz measured -3dB point in the horizontal test. Its professional controls and format can suit a dedicated monitoring installation. Measured bass extension of 48.3Hz (-3dB).
Cons: The horizontal measurement scores 6.06 with an ideal subwoofer and spans 2.9dB from 300Hz to 5kHz. Off-axis variation limits tonal consistency across listening positions. Orientation matters, and neither the beryllium tweeter nor the additional woofer makes its measured balance class-leading. Erin suspected intermodulation-related roughness even though harmonic distortion measured low.
Full Focal Twin6 Be review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 150W LF + 100W LF/MF + 100W HF |
| Aux Input | No |
| Bass Extension | 40Hz manufacturer specified; Erin measured strong low-frequency linearity |
| Bass Extension (-10dB) | 39.1Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 48.3Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 9.8” x 19.7” x 13.4” (250 x 500 x 340 mm) (H x W x D) |
| Drivers | 1” inverted beryllium tweeter; dual 6.5” W-cone drivers |
| Frequency Response | 40Hz - 40kHz (±3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Balanced XLR with +4dBu/-10dBV sensitivity |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 4.04 |
| Spinorama Preference Score with Perfect Sub | 6.06 |
| TRS Input | No |
| USB Input | No |
| Weight | 48.5 lbs (22 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
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