The 545SD-LC classic unidyne instrument microphone is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, the 545SD-LC features a silent magnetic reed on/off switch with lock-on option. A favorite for instrument pickup and recording, the 545SD-LC can also be used on lecterns in public address systems.
Silent magnetic reed on/off switch with lock option
Cardioid, dynamic
Frequency response: 50 to 15,000 Hz
Polar/Pickup Pattern - Cardiod
Microphone Type - Dynamic
Polar/Pickup Pattern - Unidirectional
Microphone Connectivity - Wireless
Wireless - Yes
Impedance:
Dual. Microphone rating impedance is 150 ohms (250 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms and "High" for connection to high-impedance microphone inputs. Wired for low impedance as supplied. To change impedance, see sections on lmpedance Selection and Connections in User Guide.
Output Level (at 1,000 Hz):
Low:
Open Circuit Voltage -58.0 dB (1.3 mV) 0 dB = 1 volt per Pascal (1 Pa = 94 dB SPL)
High:
Open Circuit Voltage -35.0 dB (17.6 mV) 0 dB = 1 volt per Pascal (1 Pa = 94 dB SPL)
Polarity:
Positive pressure on diaphragm produces positive voltage on pin 2 (with respect to pin 3)
Switch:
Built-in magnetic reed on/off switch with lockplate
Swivel Adapter:
Positive action, adjustable through 90 degrees from vertical to horizontal, permits easy removal for handheld use, suitable for mounting on stand with 5/8"- 27 thread
Case:
Chrome-plated die casting with ARMO-DUR® grille and stainless steel screen
Maximum Frequency Response (Bandwidth):
15,000 Hz
Maximum Frequency Response (Bandwidth):
15 kHz
Minimum Frequency Response (Bandwidth):
50 Hz
Minimum Frequency Response (Bandwidth):
0.05 kHz
Product Weight:
0.56 lbs
Wireless:
Yes
Regulatory Compliance:
CE, EMC
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