ED-21932-055

Speakers Overview

The Knowles ED-21932-055 is a compact electrodynamic speaker designed for audio output applications. It features a nominal impedance of 196 ohms, which is characteristic of high-impedance drivers used in battery-powered devices to minimize current draw. The unit incorporates an integrated acoustic port located on the end of the housing, optimizing sound projection in constrained spaces. This configuration supports efficient audio reproduction while maintaining a small physical footprint suitable for portable electronics.

Speakers Feature Summary

• High-impedance design (196 ohms) for low power consumption
• Integrated end-port acoustic structure for directional sound
• Compact form factor optimized for space-constrained enclosures

Speakers Applications

• Portable consumer electronic devices
• Battery-operated audio equipment
• Compact communication modules

Speakers Procurement Notes

Verify the specific impedance requirement of 196 ohms against your circuit design, as this differs from standard 8 or 16-ohm speakers. Confirm that the end-port orientation aligns with your mechanical enclosure layout to ensure proper acoustic performance. Check for any RoHS compliance documentation if required by your manufacturing standards.

Speakers Selection Notes

Select this component when system power constraints necessitate a high-impedance driver to reduce load on the amplifier or audio codec. Ensure the available mounting space accommodates the specific dimensions and port location. Verify that the target application does not require ultra-low frequency response, as small high-impedance speakers typically prioritize mid-range clarity over bass extension.

Speakers Part Context

This part belongs to Knowles' specialized speaker portfolio, focusing on miniaturized audio solutions. Unlike general-purpose speakers, these units are engineered for integration into tight spaces where standard acoustic components cannot fit. The high impedance distinguishes it from common low-impedance alternatives found in larger audio systems.

Speakers Replacement Considerations

Direct substitutes must match the 196-ohm impedance and end-port configuration. Generic 8-ohm replacements will overload the driving circuit. Consult Knowles documentation for alternative part numbers within the same series that offer compatible mechanical interfaces and acoustic characteristics.