Kii Audio Three BXT Single Dark Grey

When the Kii THREE Moves into a New Dimension

The Kii THREE BXT is not merely a cosmetic extension. It marks a clear evolution in the Kii system philosophy, transforming the compact standalone monitor into a large-format monitoring solution designed for the most demanding environments. The idea remains the same: controlling the loudspeaker’s radiation with unusual precision, but with even greater dynamic headroom and spectral authority.

The value of this design lies in preserving what made the standalone Kii THREE renowned while taking it further. The BXT extends the bandwidth, increases the available output level and gives the system the stature of a main monitoring system without sacrificing phase coherence, active filtering or the brand’s proprietary DSP processing.

This upgrade remains particularly smart from a practical standpoint. An existing set of Kii THREE monitors can evolve into the BXT without compromising the initial investment. The main loudspeakers also retain their modularity: they can be detached and used on their own whenever the setup or transportation requirements call for it.

A System Designed for Mixing, Mastering and Control Rooms That Want to Hear Further

The Kii THREE BXT is aimed at studios seeking a truly high-end monitoring experience without suffering from the classic drawbacks of large loudspeakers in imperfect rooms. In mixing, it allows you to assess low-frequency energy, kick drum control, synth depth and the overall balance of the program with greater precision, without artificial room-induced bass buildup.

In mastering, the benefits are just as obvious. The combination of extended response, radiation control and phase management provides an exceptionally reliable view of transients, low-end weight and harmonic density. The system therefore remains equally relevant for delicate acoustic productions and high-energy music.

This model will also appeal to producers, composers and sound engineers working in small or medium-sized rooms who do not want to give up a large-format monitoring experience. This is precisely one of the concept’s major strengths: despite its size, the system interacts only minimally with the room and can deliver convincing results where more conventional loudspeakers become difficult to use.

An Advanced Architecture for More Low End, More Output and the Same High Level of Control

The BXT fully embraces the technological principles of the Kii THREE and extends them to a larger scale. By adding 16 loudspeakers to the system, it increases the available radiating surface while simultaneously improving low-frequency capability, power handling and the sense of ease at high levels. The result is not merely more impressive: above all, it is more stable, cleaner and more intelligible.

A Linear Source for Greater Precision

One of the most remarkable aspects of the Kii THREE BXT is its ability to combine the behavior of a line source with horizontal directivity control. This architecture makes it possible to channel sound energy more effectively into the useful listening area. The result is more even reproduction, improved midrange intelligibility and a clearer perception of mix depth.

In small rooms, this approach proves particularly effective. Where a traditional system may excite reflections more strongly and make critical judgment more difficult, the BXT maintains a more controlled presentation. The low end remains articulate, the lower midrange gains definition and the image retains its precision even when the room is less than ideal.

DSP, Active Filtering and Automatic Adaptation

The system is built around advanced DSP management, an active wave-focusing crossover filter and specifically optimized Class D amplification. This combination makes it possible to control the loudspeakers with great precision, align the system’s time-domain behavior and maintain an exceptionally controlled response across the entire useful spectrum.

In use, integration is seamless. The Kii THREE monitors automatically detect the presence of the BXT and adjust their software operation accordingly. Users therefore benefit from a performance upgrade without any complex procedure, along with correction options suited to different placements: on stands, near a wall or in a corner.

A Scalable and Rational Solution

The Kii THREE BXT is also distinguished by its modular design. For a studio already equipped with Kii THREE monitors, adding the BXT represents a natural step toward more ambitious monitoring, without disrupting the workflow. And when mobility once again becomes a priority, the main loudspeakers can be separated from their extension bases to return to their original format.

This versatility, combined with an uncommon acoustic design, makes the Kii THREE BXT a particularly coherent solution for professionals who want to combine high-end monitoring, minimal room interaction, substantial dynamic headroom and long-term investment protection.

Technical specifications

Custom Class D amplification	2,000 watts	Controlled directivity	4.8 dB from 54 Hz to 1 kHz, gradually increasing thereafter
Frequency response at -3 dB	20 Hz	Inputs	analogue, AES/EBU, KiiLink SPDIF, TOSLink, USB via the Kii Control
Response from 100 Hz to 10 kHz	+/- 0.5 dB	Dimensions	20 x 120 x 40 cm, width x height x depth
Response from 10 kHz to 20 kHz	+/- 1 dB	Weight	51 kg per unit
Selectable phase response	linear phase or minimum latency