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Two Channel Networked Amplifier

Model: Voltera D 4800.2M

  • Drive the most demanding loudspeakers — 4800W total output across two Class D channels provides exceptional headroom for large venues, high-output arrays, and long-throw systems.
  • Optimize audio exactly to specification — integrated DSP (equivalent to TesiraFORTÉ) delivers full loudspeaker management, routing, EQ, filters, delay, and system protection.
  • Integrate seamlessly into modern networked ecosystems — supports AVB, Dante, and AES67 for maximum compatibility with enterprise and performance audio networks.
  • Power nearly any loudspeaker topology — drives low-impedance loads (2.7, 4, 8, 16 ohm) as well as 70V and 100V constant-voltage systems.
  • Speed up commissioning with proven presets — ALAMOS loudspeaker profile library includes nearly 700 optimized loudspeaker tunings for consistent, repeatable results.
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The Voltera D 4800.2M is a high-performance two-channel networked amplifier engineered for applications requiring maximum output power, pristine signal processing, and bulletproof reliability. Delivering 4800 watts of total output in a compact 1RU chassis, it is ideal for large performance venues, houses of worship, sports facilities, auditoriums, and any installation with demanding loudspeaker requirements. Equipped with powerful onboard DSP equivalent to a TesiraFORTÉ processor, the Voltera D 4800.2M eliminates the need for external signal processors. Its integrated toolset includes routing, EQ, filters, limiters, delay, and complete loudspeaker management—allowing fine-tuned system optimization directly within the amplifier. With the ALAMOS preset library, installers gain rapid access to nearly 700 loudspeaker profiles, ensuring predictable and consistent tuning across projects. Designed for demanding loudspeaker applications, the amplifier’s high peak-voltage output ensures efficient energy delivery even when driving systems that require elevated voltages, maintaining clean, low-distortion performance at all output levels. The amplifier seamlessly integrates into modern AV networks, supporting AVB, Dante, and AES67 for flexible interoperability. Its advanced limiter scheme ensures clarity and stability during high-demand audio playback, while PoE+ sustainment keeps the internal processor operational during AC power outages. Failover-to-analog input capability further enhances resilience by maintaining audio output if network transport becomes unavailable. With unmatched power density, intelligent system protection, and comprehensive DSP integration, the Voltera D 4800.2M offers a future-ready amplification platform built for the most critical commercial audio environments.

  • Drive the most demanding loudspeakers — 4800W total output across two Class D channels provides exceptional headroom for large venues, high-output arrays, and long-throw systems.
  • Optimize audio exactly to specification — integrated DSP (equivalent to TesiraFORTÉ) delivers full loudspeaker management, routing, EQ, filters, delay, and system protection.
  • Integrate seamlessly into modern networked ecosystems — supports AVB, Dante, and AES67 for maximum compatibility with enterprise and performance audio networks.
  • Power nearly any loudspeaker topology — drives low-impedance loads (2.7, 4, 8, 16 ohm) as well as 70V and 100V constant-voltage systems.
  • Speed up commissioning with proven presets — ALAMOS loudspeaker profile library includes nearly 700 optimized loudspeaker tunings for consistent, repeatable results.
  • Handle peak-demand moments effortlessly — power sharing delivers up to 100% of total power through any single channel.
  • Ensure continuous audio delivery — failover-to-analog input support provides seamless audio redundancy if network streams are interrupted.
 
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Douglas Fearing- Co-Founder / President

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.