Shure 503BG Cardioid Dynamic Gooseneck Microphone

The 503BG gooseneck microphone features a low-impedance, moving coil type transducer with an integral humbucking coil and an attached two-conductor shielded cable with a built-in strain relief. It produces a frequency response with an essentially constant output voltage over the voice spectrum when used close to the sound source.

The 503BG's case is aluminum with a black enamel finish. It mounts to a gooseneck (not included), a fixed pipe or a microphone stand using a standard 5/8"-27 thread.

Optimized performance in voice processing and computer voice recognition applications
Smooth frequency response with excellent fidelity in the voice range
Cardioid pickup pattern and close-talking operation keep unwanted signals and background noise at low levels
Constant output over voice spectrum when close talked
Humbucking coil minimizes undesirable hum effects such as CRT interference
Low-impedance design permits long cable runs in extreme hum fields
Small unobtrusive design does not interfere with CRT visibility
Frequency response: 100 to 7,000 Hz