L-Acoustics KARA II – Modular Line Array Loudspeaker (K Series Touring System)

The L-Acoustics KARA II is a high-performance modular line array loudspeaker designed for touring and installation applications, delivering powerful output, flexible coverage, and precise sound control. As part of the K Series by L-Acoustics, it represents a refined evolution of the original Kara system, integrating advanced technologies such as Panflex™ adjustable directivity and WST® wavefront shaping.

Widely used across Europe, the KARA II is a go-to solution for concerts, festivals, theaters, and corporate events, where consistent coverage, scalability, and high SPL performance are critical.

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System Design & Architecture

The KARA II is a 2-way active line source enclosure, designed to operate within scalable line arrays.

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Core Configuration

Type: 2-way active line array module

Transducers:

• 2 × 8″ LF neodymium drivers
• 1 × 3″ HF compression driver

Acoustic Design:

• Bass-reflex LF section
• DOSC® waveguide for HF
• Panflex™ adjustable directivity

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Key Performance Metrics

Maximum SPL:

• Up to 142 dB (peak)

Frequency Range:

• 55 Hz – 20 kHz

Nominal Directivity:

• Horizontal: 70° / 90° / 110°
• Vertical: Defined by array curvature

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Audio Performance & Coverage Control

One of the defining features of the KARA II is its adaptive coverage capability, allowing it to be tailored to complex audience geometries.

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Panflex™ Technology

• Adjustable horizontal directivity (70°, 90°, 110°)
• Asymmetrical coverage for left/right steering
• Optimized SPL distribution across audience

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Practical Advantage

• One enclosure adapts to multiple venue layouts
• Reduces the need for additional speakers
• Improves coverage precision in challenging environments

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Wavefront Precision (WST®)

The KARA II uses Wavefront Sculpture Technology, ensuring:

• Coherent wavefront coupling across arrays
• Smooth frequency response over long distances
• Consistent tonal balance from front to back

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Physical & Mechanical Design

Construction:

• Premium Baltic birch plywood enclosure

Weight:

• Approx. 26 kg per cabinet

Rigging System:

• 4-point captive rigging system
• Adjustable inter-element angles: 0°–10°

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Deployment Flexibility

• Flown arrays (up to large configurations)
• Ground-stacked systems
• Compatible with SB18 subwoofers for extended low-end

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Durability

• Touring-grade construction
• Weather-resistant design (IP-rated variants available)

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Amplification & System Integration

The KARA II is designed to operate with L-Acoustics amplified controllers:

Compatible Amplifiers:

• LA4X
• LA8
• LA12X

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System Signal Flow

Audio Source → DSP Amplifier → KARA II Array → Audience

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Processing Integration

• Factory presets ensure optimal tuning
• Built-in protection (L-Drive system)
• Precise crossover and phase alignment

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Real-World Performance Insight

The KARA II is engineered for consistent, high-impact sound in demanding environments.

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Field Performance Characteristics

• High SPL with minimal distortion
• Strong midrange clarity for vocals
• Controlled low-frequency extension for a compact cabinet
• Smooth coverage across large audience areas

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Touring Insight

In European touring systems:

• The KARA II is often deployed as a main PA or downfill system
• Its compact size allows faster rigging and transport
• Panflex reduces system complexity by adapting coverage without extra hardware

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Typical System Configurations

Small to Medium Events:

• 6–12 × KARA II per side
• 2–6 × SB18 subwoofers

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Large-Scale Systems:

• 12–24 × KARA II per side
• Combined with K2 or K1 systems as fills or delays

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Result

• High-output scalable system
• Balanced frequency response
• Precise audience coverage

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Best-Suited Applications

Touring concerts and festivals
Theaters and performing arts venues
Corporate AV and live events
Houses of worship
Large clubs and live music venues

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System Advantages in Practice

Flexibility:
Adjustable directivity adapts to any venue layout

Scalability:
Suitable for small setups or large touring arrays

Clarity:
Consistent sound quality across the audience

Efficiency:
High SPL relative to size and weight

Reliability:
Proven touring performance across Europe

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Summary

The L-Acoustics KARA II is a versatile, high-performance line array system combining powerful output, flexible coverage, and precision engineering, making it a staple in modern professional audio.

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Bottom Line

For professional audio systems in Europe, the KARA II offers a compact yet powerful line array solution, ideal for touring, installations, and events requiring consistent, high-quality sound with adaptable coverage control.