RAB-32033-000

Speakers Overview

The Knowles RAB-32033-000 is a balanced armature receiver featuring a 50 Ohm impedance and an open vent design. It delivers a sound pressure level of 106 dBA with a frequency response ranging from 20 Hz to 11.8 kHz. The component utilizes metal housing construction and measures 5.15 mm in length with a height of 2.63 mm. As an undamped port version, it requires outboard filtering to establish the low-frequency dynamic range. This board-mount device is engineered for high efficiency and stability within space-constrained audio applications.

Speakers Feature Summary

• Balanced armature technology providing high efficiency and reliability
• Open vent configuration requiring external filtering for low-frequency management
• Metal housing construction for structural integrity
• Board mount style suitable for compact electronic assemblies

Speakers Applications

• Space-constrained hearing aids
• In-ear monitor (IEM) DIY earphone receivers
• High-fidelity sound reproduction systems

Speakers Procurement Notes

Verify that the specific application environment accommodates the undamped port nature of this receiver. Since the component lacks internal damping, ensure that the system design includes appropriate outboard filtering circuits to manage the low-frequency dynamic range effectively. Confirm that the 50 Ohm impedance aligns with the driving circuit requirements to maintain optimal performance and signal integrity during operation.

Speakers Selection Notes

Select this component when a small form factor and high sensitivity are required for audio output. The 50 Ohm impedance offers compatibility with various driver stages, while the 106 dBA SPL ensures adequate volume levels. Consider the need for external filtering solutions due to the open vent design. The rectangular shape and metal housing make it suitable for rigid mounting structures where vibration resistance and precise acoustic tuning are necessary for the target audio profile.

Speakers Part Context

This part belongs to the Knowles Balanced Armature Receiver series, designed for professional and consumer audio electronics. The RAB-32033-000 variant specifically addresses the need for compact, high-performance transducers. Its classification as a board-mount speaker highlights its integration into printed circuit boards rather than standalone enclosure installations. The product maintains RoHS compliance, adhering to environmental standards for electronic components used in modern audio devices.

Speakers Replacement Considerations

Direct substitutes must match the 50 Ohm impedance, balanced armature architecture, and similar physical dimensions. Verify that alternative components also feature open vent designs or include integrated damping if the original filtering strategy cannot be maintained. Ensure the replacement supports the required 106 dBA SPL and frequency response range to preserve audio fidelity in the existing system design.