Audio
L-Acoustics KARA II
A variable-curvature line-source element for designed speech and music systems. Match horizontal coverage and amplified circuits to the actual deployment.
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Model and application
- Model
- L-Acoustics KARA II.
- Architecture
- 2-way active architecture;external amplified controller.
- Symmetric patterns
- Panflex:70° or110° symmetric.
- Asymmetric pattern
- Panflex:90° asymmetric to either side.
- Amplification
- Approved controller and matching preset required.
Active describes the system architecture,not an internal mains amplifier. Identify factory KARA II versus an upgraded enclosure;do not infer servicing parts or configurations from the grille alone.
Connections and required equipment
Use the approved amplified controller,circuit and speaker cable. LF/HF and any subwoofer breakout must agree with the actual program and wiring diagram. A familiar-looking connector does not prove its assignment.
Prepare the system
- Record enclosure/controller identity,preset and cable references.
- Compare Panflex settings and array geometry to the approved design before operation.
- Protect listeners and compare one intended input/output circuit without changing shared routes.
Questions and troubleshooting
Only part of the frequency range is audible. What first?
Check the complete amplified circuit rather than compensating with EQ.
- Compare controller program,output indications and cable references with the exact diagram.
- Have the responsible technician verify the muted circuit. Do not swap LF/HF or subwoofer outputs from a forum example.
- A missing band despite a valid input narrows the comparison to program, amplified outputs, cabling and enclosure; it does not prove a driver failure. Verify the complete approved circuit at controlled level after correction; persistent loss or protection requires qualified service.
Why is horizontal coverage different between sections?
Panflex offers different coverage patterns.
- Record each enclosure’s intended pattern and compare with the design.
- Mechanical corrections require the manufacturer procedure and responsible personnel;do not adjust a suspended system ad hoc.
- If the observed pattern differs from the plan, record the affected enclosures for the responsible technician. After an approved correction, compare the same reference at the same listening positions; do not attempt suspended adjustments to diagnose coverage.
Does a project file prove the installed preset and wiring are correct?
A design file and the actual controller state are separate evidence.
- Compare model,library,program and circuit labels after import.
- Document mismatches before applying settings. Do not replace a whole controller configuration to solve a single uncertain route.
- If labels or loaded program disagree with the intended circuit, stop before sending test audio. Have the system owner reconcile the exact configuration, then verify one agreed route and its complete frequency range; retain unresolved differences for manufacturer support.
Choose the next check
| Observation | Next check | What to record |
|---|---|---|
| Missing frequency range | Program and cable | Circuit reference |
| Uneven horizontal coverage | Panflex and design | Pattern per enclosure |
| Project/controller mismatch | Actual loaded state | Library,program,circuit |
Precautions
- Use current model-specific rigging and amplification documents;no forum load or pinout recipes.
- Do not connect line-level or mains directly to the enclosure.
- Do not bypass protection or alter energized speaker wiring.
Official documentation
Sources consulted October 22, 2026. Match the exact model, version and system before applying settings.
- L-Acoustics — KARA II — Model and directivity.
- Kara II Owner’s Manual v5.0 — original manufacturer document mirrored by Eurydice — Manufacturer manual v5.0,external mirror;selected indexed sections.
- L-Acoustics Preset Guide — Controller/preset guidance;check the actual library.