Shure 545SD-LC
All Purpose Microphone

The UNlDYNE III Model 545SD is a dual-impedance, unidrectional, dynamic microphone. Shipped connected for low-impedance operation, it features a silent magnetic reed on/off switch.
The 545SD is a favorite for instrument pickup and recording, and can be used on lecterns for public address systems such as those used in political conventions and legislatures, convention halls, hotels, public auditoriums, stadiums, schools, and churches.

• Exceptionally uniform cardioid pattern minimizes feedback in PA applications
• Selectable dual-impedance operation
• Silent magnetic reed on/off switch with lock-on option
• Cardioid dynamic
• Frequency response: 50 to 15,000 Hz.