©2019 Kehl Associates LLC- All Rights Reserved HOME ABOUT US DESIGN PROCESS FEATURED PROJECTS Kehl Associates, LLC Minneapolis • Denver • Dallas • Phoenix         In 2019 we celebrate our 34th year as a consulting firm.  My personal thanks to our clients and friends who have made our first 33 years so successful and enjoyable.  I look forward to personally serving you for years to come.  Please feel free to contact me directly with any needs, questions, or comments.   Robert Kehl Founder & CEO email Robert Kehl        “If you want it done right, get Kehl Associates”           Director of Construction & Quality Assurance         University of Notre Dame  What We Do    Architectural Acoustics and System Design  Kehl Associates™ is a specialty consulting firm that provides design expertise in architectural acoustics, sound, audio-visual, theatrical lighting, and stage rigging systems.  Our designs are incorporated into Performing Arts Theatres, Churches, Educational and Athletic Facilities, Government and Corporate Facilities, and a diversity of other facility types.     Architectural Infrastructure for Technology  We help your architect design spaces that work for the technology by designing the infrastructure into the building to accommodate the systems in each space.  We critique room geometries and architectural features to ensure good hearing, viewing, sound, and lighting coverage, and adequate space for technology equipment and operation.  We define the electrical, structural, and mechanical systems requirements for proper operation of sound, video, lighting, and rigging systems.  We work with your building design team to incorporate this technology infrastructure into the design of the building.   Systems Design and Procurement  We design sound, video, lighting, and rigging systems that will serve the users needs and match the acoustics and geometric features of the individual spaces in the facility.  We  provide component level systems drawings, documentation, and specifications for bidding and procurement purposes.     Construction Management and Testing  We help manage the construction and systems installation, performing on-site inspections and testing to make sure everything is built and installed as intended.   Design-Build    We also offer Design-Build options that provide single-source design, sales, and installation of acoustical treatments as well as sound, audio-visual, theatrical lighting, and stage rigging systems.              6112 N Mesa Street Suite 7200 El Paso, TX  79912    888-881-5345 7900 International Drive Suite 300 - International Plaza  Minneapolis, MN  55425  612-332-5345
better and more efficient air-conditioning, heating, and fresh-air ventilation, as  mandated by modern  building codes.   New HVAC units were required and there was no space for them in or on the  building, nor was there room on the  property for an expansion to house the  new HVAC Rooms. The design team had no choice, other  than to locate the new HVAC Rooms in   the Fly Loft and the rear Upper Balcony.  Since the stage should be the quietest  space in a theatre, the architect knew that these locations could cause noise issues. They called on Kehl Associates to asisst with designing adequate  noise isolation into the renovation design.  The architect had designed the new HVAC Rooms with dual-stud walls, for increased noise  isolation.  Kehl Associates, by constructing an advanced acoustic  model of the HVAC Rooms, determined that additional isolation was needed.  By tweaking the HVAC Room wall materials and  thicknesses, Kehl defined a cost-effective solution that provided the needed noise isolation within budget. The next acoustical challenge lay in designing acoustical treatments to adequately lower the RT60 in the theatre.  The only remaining  acoustical treatment in the space was a few small areas of acoustical plaster ceiling, now 100 years old.  Kehl Associates built an acoustic model of the main theatre, estimating the acoustical properties of the 100-year-old acoustical plaster.  As is often done in “best practice” techniques, on-site RT-60 testing of the current theatre space was used to calibrate the acoustic model.  Once calibrated, the model could  reliably be used to simulate different acoustical treatment materials to identify the best one for the project.  The final solution utilized ASI Echo Eliminator Acoustical Cotton  panels in the high ceiling and Custom Acoustical Draperies on the  Balcony sidewalls.   Additional acoustical treatment,  recommended for the lower sidewalls and under-balcony ceilings, was postponed  until after construction due to budget constraints.  ACOUSTICAL DESIGN is one of the specialty design services offered by Kehl Associates.  We provide acoustical design services for all types of facilities.    
Historic Theater Renovation in St. Paul  Kehl Associates Chosen for Palace Theater Acoustics The St. Paul Palace Theater, a 3.000-seat theater originally constructed in 1916 for vaudeville performances, was eventually converted for use as a movie theater, but has basically stood dark and silent since 1977.  The Palace was purchased by the city of St. Paul in 2014 and the 2-year renovation project commenced.  Oertel Architects was selected for the project, which was filled with  major construction and budgetary challenges.  The acoustic challenges of the theater renovation were also significant and of primary  importance for this music venue.  Robert Kehl, a native of St.  Paul and founder of Kehl Associates, was very pleased that his firm was selected for the acoustical design of the renovation.   His team worked closely with the project architects and  engineers to overcome the challenges and obstacles presented by the renovation of this 100-year-old historic theater.  A major acoustical challenge was the noise that would be  created by the new HVAC systems, needed to provide