The RU-MX4 is the ideal choice in many applications where a combination of balanced mic and/or unbalanced line-level signals needs to be mixed. Balanced connections use XLR connectors. Unbalanced signals are coupled through phono jacks. Each of the four inputs can accept either a balanced XLR mic or an unbalanced line-level input. 24 V phantom is individually switch selectable for each mic input. The unbalanced phono jack LINE OUTPUT from one RU-MX4 may connect to the unbalanced input of other equipment, or may be connected to the DIRECT input of another RU-MX4 to expand mixing capabilities. Up to 3 RU-MX4 mixers may be rack mounted in a single rack unit using an RDL RU-RA3HD rack adapter. The RU-MX4 provides one balanced output, switchable for mic or line level. Audio levels are adjustable on the front panel. Each input channel is equipped with a front-panel dual-LED VU meter that follows standard VU ballistics. The final mix is displayed on an LED string VU meter featuring a visually comfortable arc motion. A rear-panel switch allows the soft-knee compressor to be switched in or out. A factory installed output isolation transformer is available by ordering the RU-MX4T.
Four Channel Audio Mixer with Expansion Capability
XLR Microphone Inputs, Phono Jack Line Inputs
Switchable 24 V Phantom for Each Mic Input
Mic or Line XLR Output, Switchable
Unbalanced Line Output and Direct Input
Integral Compressor/Limiter, Switchable
Studio-Quality, Low-Noise Performance
Microphone Inputs (4):
2 k Ohms balanced, switchable 24 V phantom (IEC 1938: 1996-12)
Mic Input Level for +4 dBu output:
-58 to –20 dBu (PHANTOM OFF or ON HI gain); -41 to –4 dBu (PHANTOM ON LO gain)
Line Inputs (4):
2 k Ohms unbalanced
Line Input Level for +4 dBu out:
-25 dBV to +20 dBV, -10 dBV nominal
Gain Adjustments (5):
Mic: Off to 62 dB gain (PHANTOM OFF ON HI gain); Off to 46 dB gain (PHANTOM ON LO gain); Line: Off to 27 dB gain
Output Attenuator:
0 dB to infinity
Frequency Response:
Mic: 80 Hz to 30 kHz (+/- 1.5 dB), <-10 dB @ 20 Hz (integral high-pass filter); Line: 20 Hz to 30 kHz (+/- 0.25 dB)
Indicators (18):
Dual-LED VU meter for each input;
COMP/LIMIT active LED; POWER LED; LED audio mix meter, 0 dB = +4 dBu; VU (dB): -20, -10, -6, -2, 0, +3; Peak Reading (dB): +8,+12
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 150 mA
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.