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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A graduate of DeVry Institute of Technology, Doug has been in the Technology industry since 1976 and actively oversees Fearing’s daily operations. Along with his wife, Lois, and three others, Doug started Fearing’s in a 600 square-foot facility in Portage, Wisconsin. In the 25 years since, the company has grown to over 30 employees with offices in Madison and Milwaukee, Wisconsin. Doug likes to say he’s a “TV Technician with a dream� going back to his history with the family’s original business-Fearing’s TV and Appliance.
Doug values time with family, watersports, hiking, snowshoeing and skiing. In addition to being a devoted member of his church, Doug serves as Board President for Kinship Mentoring of Columbia County, Board member of Schools for Haiti and Scripture Chair of the Gideons-Portage camp.
Lois Fearing- Co-Founder/Accounting, Human Resources
A graduate of MATC, Lois oversees Fearing’s daily book keeping along with various HR responsibilities.
Along with Doug, Lois is deeply connected to community outreach, serving as a Board member and Fundraising Committee Chairperson for Kinship Mentoring of Columbia County. She also serves on the Schools for Haiti Fundraising committee. In addition, Lois’ ongoing passion and commitment to provide care for the elderly comes from her 10-year history of working in a Reedsburg, Wisconsin Nursing home.
Lois enjoys singing, hiking, sunny days on the pontoon, and spending time with her 4 grandchildren.
Ehren Tresner-VP of Technology and Innovation
Ehren drives Fearing’s technology by continually seeking out trends to enhance capabilities while supporting Sales, Engineering and Installation teams. Throughout his years with Fearing’s, Ehren’s talent and vision have joined forces to create a wide variety of projects and strategic solutions that exceed expectation.
Ehren loves music, family time, movies, nature, sustainability efforts and electric vehicles.
Ben Voeck-Director of Commercial AV
With 10 years with Fearing’s and over twice that long in the industry, Ben continues to lead, coordinate, and develop the Commercial AV team.
By consistently delivering an outstanding experience and outcome, Ben contributes to the Fearing’s legacy of long-lasting partnerships that truly make a difference. Whatever the Commercial AV need may be, Ben and team deliver at the highest level.
Ben is an avid fisherman and photographer. He enjoys coaching his sons and other youth.
Chris Matson-Senior VP of Sales
Chris has been with Fearing’s for 20 years and in the industry for over 2 decades. As a Certified leader in Sales Acceleration and trained in EOS (Entrepreneurial Operating Systems), Chris successfully utilizes his skills to lead the Fearing’s Salesforce. Chris and team are motivated and driven to develop new client partnerships while continuing to reinforce loyal long-term relationships with ongoing Service excellence.
Married for 19 years with 3 children, Chris enjoys skiing, hiking, fishing, boating, hunting, camping and golf. He’s also been actively involved as a Youth Football and Softball coach for his family and others.