TEBM36S12-4A

Overview

The Seltech TEBM36S12-4A is a Balanced Mode Radiator (BMR) speaker driver designed for high-fidelity audio reproduction. It features a rectangular diaphragm measuring 65x65 mm with a depth of 29.7 mm. The unit operates at an impedance of 4 Ohms and handles a rated power of 12 Watts. Its frequency response spans from 80 Hz to 20,000 Hz, with a self-resonant frequency of 165 Hz. The sensitivity is specified at 83 dBA, providing efficient acoustic output for compact enclosure designs.

Feature Summary

• Balanced Mode Radiator technology combining piston and bending wave motion for extended bandwidth
• Rectangular diaphragm geometry optimized for wide dispersion characteristics
• Integrated gasket design for shock protection and acoustic sealing

Applications

• High-fidelity stereo loudspeaker systems
• Compact bookshelf or floor-standing enclosures
• Multi-driver audio setups requiring wide dispersion

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturing revisions may occur. Confirm that the required impedance matches your amplifier output specifications. Ensure enclosure dimensions accommodate the 65x65x29.7 mm physical footprint. Check for included mounting hardware or gasket requirements in the final assembly plan.

Selection Notes

Select this component when wide dispersion and extended low-frequency response are prioritized over pure piston behavior. The BMR design reduces beaming effects at higher frequencies compared to traditional dome tweeters. Consider the 4-ohm impedance load when calculating amplifier compatibility and crossover network values for multi-way systems.

Part Context

This model belongs to Seltech’s TEBM series of Balanced Mode Radiators. These drivers utilize a unique diaphragm structure that excites both radial and circumferential modes. The series offers various sizes and impedances to suit different enclosure volumes and power handling requirements in professional and consumer audio applications.

Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Alternative BMR drivers from other manufacturers require verification of dimensional compatibility, impedance matching, and Thiele/Small parameter alignment before integration into existing crossover networks.