SP-7140

Overview

The SP-7140 is a general-purpose dynamic speaker manufactured by Soberton Inc. It features a rectangular shape with top porting and an impedance of 4 Ohms. The unit has a nominal input power rating of 3 Watts and a maximum input power of 5 Watts. It delivers a sound pressure level of 85 dB at 300 Hz. The frequency range extends from 300 Hz to 20 kHz. Termination is provided via eyelets.

Feature Summary

• Rectangular design with top port configuration
• Dynamic driver technology for audio reproduction
• Eyelet termination for wiring connection

Applications

• General purpose audio equipment
• Consumer electronics enclosures
• Industrial control panels requiring audible alerts

Procurement Notes

Verify the specific impedance variant, as 4 Ohm and 8 Ohm versions exist within the product family. Confirm that eyelet terminations match your harness requirements. Ensure the 3W nominal and 5W maximum power ratings align with your amplifier output capabilities. Check physical dimensions against enclosure constraints due to the rectangular form factor.

Selection Notes

Select this model when a compact rectangular speaker with top porting is required. The 4 Ohm impedance suits standard low-impedance amplifiers. Consider the 85 dB sensitivity for applications needing moderate volume without excessive power. Verify the 300 Hz lower frequency limit meets bass response needs. Eyelet terminals simplify integration into existing wiring setups.

Part Context

Soberton Inc. produces a range of square and rectangular ferrite speakers. The SP-7140 belongs to this series, characterized by its specific acoustic output and mechanical dimensions. It is designed for cost-effective audio solutions in mass-produced devices. The product line includes variants with different impedances and power ratings to suit diverse circuit designs.

Replacement Considerations

SP-7140-1 is a documented variant with identical electrical specifications but potentially different packaging or minor mechanical tolerances. Direct substitution requires verifying terminal compatibility and mounting hole alignment. No other official substitutes are confirmed in public documentation.