BF 45 - 8 OHM

Overview

The Visaton BF 45 - 8 OHM is a general-purpose full-range speaker driver with an 8 Ohm impedance. It features a frequency range of 90 Hz to 20 kHz and a self-resonant frequency of 160 Hz. The unit has an efficiency of 79.00 dBA and utilizes an aluminum diaphragm within a transparent plastic basket. Physical dimensions are 45 mm x 61 mm externally, with a maximum mounting height of 26.00 mm.

Feature Summary

• Full-range audio reproduction capability
• Aluminum diaphragm construction for balanced response
• Transparent plastic basket design with mounting holes

Applications

• General purpose audio equipment
• Embedded audio systems
• Miniature speaker assemblies

Procurement Notes

Verify the specific impedance variant required, as Visaton manufactures both 4 Ohm and 8 Ohm versions of the BF 45 model. Confirm that the 8 Ohm specification matches the system design requirements before ordering. Ensure compatibility with the intended enclosure size given the 45 mm x 61 mm footprint.

Selection Notes

Select this component when a compact full-range driver with aluminum diaphragm characteristics is needed. The 8 Ohm impedance suits specific amplifier outputs. Consider the 160 Hz resonance point for enclosure tuning. Verify physical clearance for the 26 mm height constraint in the final assembly design.

Part Context

This component belongs to Visaton's miniature speaker series, designed for space-constrained applications. The BF 45 model offers a balance between size and acoustic performance, utilizing a plastic basket structure. It serves as a standard solution for basic audio reproduction tasks where high fidelity is not the primary requirement.

Replacement Considerations

Visaton also produces a 4 Ohm version (BF 45 - 4 OHM). When substituting, verify that the amplifier output stage can drive the different impedance load without distortion or damage. Other Visaton models may offer similar dimensions but different acoustic parameters.