CI-22955-143

Overview

The Knowles CI-22955-143 is a balanced armature receiver designed for high-fidelity audio applications. It features a rectangular shape and operates within a frequency range of 25 Hz to 5.5 kHz. The component has an impedance of 47 Ohms and delivers an efficiency of 125.5 dBA. This driver utilizes a large diaphragm relative to typical balanced armature designs to provide robust bass response with low distortion, making it suitable for in-ear monitor systems requiring detailed midrange and extended treble support.

Feature Summary

• Balanced armature technology originator design
• Large diaphragm for robust bass response
• Low-distortion performance characteristics
• Rectangular form factor

Applications

• In-ear monitor bass drivers
• High-fidelity audio receivers
• Specialty transducer assemblies

Procurement Notes

Verify the specific suffix -143 against official Knowles documentation to confirm exact mechanical and electrical tolerances. Ensure compatibility with existing acoustic chambers and driver arrays. Confirm RoHS compliance status through current manufacturer datasheets before integration into final products.

Selection Notes

Select this component when a dedicated bass driver is required in a multi-driver in-ear monitor configuration. Its large diaphragm distinguishes it from standard midrange balanced armatures. Pair with complementary midrange and treble drivers to achieve full-spectrum audio coverage.

Part Context

Knowles is recognized as the originator of balanced armature technology. The CI-22955 series represents their specialty transducer line, often utilized in premium audio equipment. This specific model is engineered to handle low-frequency reproduction tasks within complex acoustic assemblies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Knowles documentation for direct equivalents or updated series replacements.