Kii Audio Three BXT

Kii Audio

Three BXT

Introduced 2019$29,990 MSRP

The Kii Three BXT is a floorstanding active DSP monitor system that combines Kii Audio's compact Kii Three active monitor with the BXT bass-extension module, effectively transforming it into a single 14-driver, cardioid-radiating full-range loudspeaker. The system is built around a single DSP crossover distributing signal across a custom Class D amplifier array (10 amplifier channels per side), delivering roughly 3,500 W per speaker (over 7,000 W per stereo pair) with cardioid directivity that minimizes room interaction and extends bass response below 20 Hz.

MSRP

$29,990

Used market · Mint

$26,000

-13% vs MSRP
as of Sep 1, 2026

MSRP to used market

From $29,990 at launch to $26,000 today.

Specifications

Inputs
Analogue XLR, AES/EBU (XLR), KiiLink; via optional Kii Control: USB, S/PDIF, TOSLink
Weight
51 kg (112 lbs) per speaker
Dimensions
1200 × 200 × 400 mm (H×W×D) per side
Directivity
Controlled cardioid pattern, 4.8dB directivity index (54Hz–1kHz, slowly rising thereafter)
System type
Floorstanding, DSP-controlled, active 3-way monitor with sealed enclosure (Kii Three + BXT bass module)
Amplification
3,500 W Class D per speaker (>7,000 W per pair); Kii Three uses 6× amps (one per driver), BXT uses 4× 500 W/2-ohm amps
Room correction
Selectable boundary/tone correction for free-standing, near-wall, or corner placement (14 positions)
Drivers per side
14 total: 1× 1" waveguided tweeter, 1× 5" midrange, 12× 6.5" woofers (2 on Kii Three, 8 on BXT front/side, plus additional side-firing units)
Frequency response
-3dB at 20 Hz; ±0.5dB from 100 Hz–10kHz; ±1dB from 10kHz–20kHz; extended bass <20 Hz (-6dB)

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