Short answer: the Kii THREE. It ranks #3 of 119 powered bookshelf speakers by sound quality (rated 4.9/5) at $16,970 and is still sold new; the Focal Twin6 Be ranks #104 (rated 3.8/5) and is discontinued, so it is only an option used. The Focal Twin6 Be’s replacement, the Focal ST6 Twin6, is rated 3.8/5 at $3,898.
The Kii THREE is the more accurate, deeper-bass pick. Compact cardioid active speakers with extremely accurate sound and full range bass that walls barely color. Its measured preference score, a predictor of how neutral it sounds, is 7.70 against 4.04 for the Focal Twin6 Be. Its bass reaches about 28Hz before falling 3dB, against 48.3Hz for the Focal Twin6 Be. The catch: 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: A dual woofer studio monitor with a beryllium tweeter and plenty of output for dedicated mixing rooms. The catch: The horizontal measurement scores 6.06 with an ideal subwoofer and spans 2.9dB from 300Hz to 5kHz.
Buy the Kii THREE. It is rated higher for sound quality; the Focal Twin6 Be is no longer sold new.
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Measured Differences
- Bass depth: the Kii THREE reaches 20.5 Hz (10 dB down) against 39.1 Hz for the Focal Twin6 Be, about an octave deeper. Low bass that the other only hints at comes through with real weight.
- Tonal accuracy above the bass: with a subwoofer taking the low end, the Kii THREE scores 8.3 against 6.1 for the Focal Twin6 Be on the Spinorama preference scale. Its frequency response and off-axis sound are smoother, so voices and instruments sound closer to the recording.
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Specifications Side By Side
| Kii THREE | Focal Twin6 Be | |
|---|---|---|
| Price | $16,970 per pair | $3,990 per pair Discontinued |
| Ranked | #3 of 119 in Large Size Powered Bookshelf Speakers | #104 of 119 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 |
Where the Ratings Come From
- Kii THREE: Spinorama.org measurements and reviews by Erin’s Audio Corner.
- Focal Twin6 Be: Spinorama.org measurements and reviews by Erin’s Audio Corner.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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