BF 45 S - 4 OHM

Overview

The Visaton BF 45 S - 4 OHM is a round electromechanical speaker transducer designed for panel mounting. It features an 8 Ohm impedance variant with a nominal power rating of 60 W and a frequency response extending down to 45 Hz. The unit utilizes a paper cone and solder lug end connections, measuring 148 mm in diameter with a depth of 75 mm. Its sound pressure level is rated at 88 dBA, providing efficient acoustic output for audio reproduction applications requiring robust low-frequency performance.

Feature Summary

• Round design with paper cone construction
• Panel mount installation style
• Solder lug electrical termination

Applications

• HiFi woofer integration
• Audio device transducers
• Speaker system components

Procurement Notes

Verify the specific impedance requirement against the datasheet, as the provided reference data indicates an 8 Ohm configuration (WS17E-8OHM) rather than the requested 4 Ohm model. Confirm RoHS compliance status through official documentation before procurement. Ensure panel cutout dimensions match the 148 mm diameter specification to guarantee proper fitment and acoustic sealing during installation.

Selection Notes

Select this component when a round, paper-cone woofer is required for general audio applications. Consider the 75 mm depth constraint for enclosure design. Verify that the solder lug termination method aligns with the circuit board or wiring harness interface. Compare the 88 dBA sensitivity against other models if higher efficiency is necessary for the specific application environment.

Part Context

This component belongs to the Visaton speakers and transducers category, specifically within the audio devices subcategory. It is classified as an electromechanical product manufactured by Visaton GmbH & Co. KG. The part is distinct from Vishay passive components found in the broader search results, representing a dedicated acoustic transducer solution.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with Visaton's current catalog for equivalent round woofer specifications.