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Product Overview

K-LA28, a passive crossover line array speaker, is designed to meet the high requirements of touring performance, rental and fixed installation.

The HF driver of K-LA28 is customized Beyma driver with composite membrane (1.75”voice coil), and the MF/LF driver is customized Beyma 8” driver (2”voice coil).

 K-LA28 system can be used as main sound reinforcement for stage with 3pcs at least or 16pcs at most per array. For system application, we suggest one amp to drive two cabinets (amp working at 2 ohm impedance). Together with Audiocenter CA450, a “plug&play” system can be built up easily to meet the demands from small to large sound system.

K-LA28 can be installed vertically. The hanging accessories are built in the cabinet. There are 8.5mm diameter highly durable pins. The system can be configured in modularization according to the venues. Same frame can be either for flying the arrays or for stacking the arrays (We suggest 4pcs maximum for stacking). For easy usage, 3pcs K-LA28 can be stacked with the customized three boxes horizontal sustain bracket.

  • Features
  • Specification
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● Customized drivers from Beyma

● PTV HF horn design ensures even coverage and highly accurate directivity

● American Benelec XPP audio capacitor with stable quality and reliable performance

● Manually soldered fiber board to ensure zero consumption even in very high dynamic

● Unique driver protection circuit and high-efficient cooling system of the driver

● Optimized and compact light weight cabinet design

● Rock solid humidity free birch plywood CNC made cabinet

● Comprehensive accessories suitable for different applications





Passive crossover line array speaker

Application System         

3pcs minimum, 16pcs maximum per array 

Frequency Response(-6dB anechoic chamber)


Rated Power (AES standard)

LF: 400W    HF: 50W

Maximum SPL


Horizontal Coverage Angle (Symmetrical)


Vertical Coverage Angle (Symmetrical)

Depend on the amount of the speaker and curvature of the line array

MF/LF Driver

Customized Beyma driver, 2” voice coil, 200W(AES)

HF Driver

Customized Beyma driver, 1”exit, 1.75” voice coil, 50W(AES)

Crossover Point

450Hz 2.2KHz, passive crossover

Rated Impedance

4Ω(+1, -1)

1 Way Amplifier   

2pcs maximum, 2Ω

Adjusted Angles

0°, 2°, 4°, 6°, 8°, 10°, 12°

Input Connectors       


Cabinet Material   

Russian birch plywood CNC made

Cabinet Color      

Black is standard and default color.Consult with sales team for the other customized colors

Dimension (W×H×D)


Net Weight



14U flightcase

CA450 touring power supply

PRO Series Amplifier

K-LA, K-LA-DSP Series subwoofer

K-LA28 Product catalogue


K-LA28 Ease GLL


K-LA28 4+1+2 Product application preset