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Company Overview

RPG's mission is to continually expand the palette of tools available through a commitment to fundamental research in acoustics. RPG's staff, consisting of architects, acousticians and engineers, has allowed RPG to grow into a truly unique and innovative company recognized worldwide as a leading manufacturer of acoustical products.

RPG's client list is a veritable Who's Who of the entertainment, educational, government and worship community's most prestigious facilities: performance halls such as Carnegie Hall and Lincoln Center; studios for Peter Gabriel, Whitney Houston and Reba McIntyre; museums such as the National Museum of the American Indian and American Visionary Arts Museum; media giants Sony and Apple; universities such as Princeton and Columbia; music schools including The Berklee School of Music, Juilliard and The Peabody Conservatory; government facilities including the Marine Band Barracks and the Naval Academy; worship facilities worldwide including the 9000 seat Southeast Christian Church and Crossroads Community Church. These prestigious projects demonstrate the acoustic performance of RPG's products and reward the trust that the architectural and acoustical communities have placed in us.

Patents and Trademarks
 
A Message from the Chairman: The Next Thirty Years of Innovation

Every anniversary or milestone naturally causes one to reflect on the accomplishment and those that need to be thanked for their help. Since I started RPG as an intellectual curiosity in my garage, I feel a great sense of accomplishment that we evolved into the industry's leading acoustical innovator. We are the industry leader in diffusion, shape optimized surfaces, low frequency absorption, absorptive wood, research, transparent absorbers, publications and measurement methodology. Much of our success is due in part to the continued support of the acoustical community, for which we are very grateful. We have stayed true to our mission of "Expanding the acoustical palette through a continued commitment to fundamental acoustics research".

In retrospect, I believe our success and longevity were due to our ability to adapt to the ever changing market demands, which allowed us to innovate, adapt and lead. We began by introducing the first quantifiable sound diffusor in the early 1980s to complement sound absorbers and reflectors. My particular need was for a sound diffusor in my recording studio to diffuse the rear wall in a LEDE design. As we modified this control room design, it became the de facto standard for modern recording studio design, with applications in thousands of state-of-the-art facilities worldwide. As the studio designers around the world began specifying diffusors, we were the natural and only choice. Hence, RPG was able to grow with only one market- recording studios, and we launched an industry! Our success in recording studios led to broadcast studios and home theaters, which benefitted from these novel designs and products; then eventually into performance and worship spaces. Each new market required RPG to adapt to new and modified product demands. Growth required the addition of talented employees to carry on my vision and I want to sincerely thank these dedicated professionals.

Sooner or later, every startup must face the fact that their initial market either stops growing, as with major recording studios, or their market share decreases through competition. Therefore, when sales to high-end recording studios and home theaters began to decline, RPG adapted by adding products for project studios. When large Worship Spaces and our original markets slowed in number, RPG decided to expand into the general architectural acoustics market and broaden our product line to include innovative products from other manufacturers, adding our acoustical expertise and distribution network; in addition, developing new RPG absorptive products as well. Today schools, which are a microcosm of all our markets, are a significant portion of our sales. With the inevitable migration to low voltage LED lighting, RPG patented the first combined light/sound diffusor and absorber called Lumaphon. All of this required continued investment and even more qualified employees. At this moment, all of RPG's project managers are talented degreed acousticians, which allows RPG to provide unparalleled support to our specifiers .

To combat competition, the answer was simple. Do what we do best. We combat imitation with innovation. As QRDs became a commodity item, RPG patented broad bandwidth Diffractals and even higher performance modulated optimized Diffractals, called Modfractals. This year the venerable QRD was inducted into the TECnology Hall of Fame along with other milestone inventions that contributed to the growth of the music industry. When our FlutterFree became a commodity, we patented an expanded band width diffusive plank including optimized well depths and folded wells, which improved performance, but maintained a 1" depth profile. When the BAD panel became a commodity, we patented a higher performance Ternary panel combining an amplitude and phase grating into a single panelized product. Competitors may try to keep up with RPG, but because of our commitment to fundamental acoustics research, we will continue to be the industry's leading acoustical innovator.

While we intend to continue to sustain our leadership in the areas mentioned, in the next thirty years we are well on our way to leading the industry in novel absorption materials, noise and vibration isolation, acoustical fabrics, curvilinear waveforms and acoustical LED lighting systems. Our management team is strong, experienced and poised to carry on the RPG tradition of innovation. Thank you for your support and I can't wait for you to see and hear what we have coming!

Warmest Regards,

Dr. Peter D'Antonio
Founder/Chairman

Over the course of the past 30 years, RPG® has expanded internationally into one of the world's most respected pioneers among acoustical manufactures. Its ever growing and diversifying product line continues to enhance the acoustical palette available to designers, making RPG one of the acoustical cornerstones of the music, performance and speech facilities of this generation.

Every company has a story and RPG's story begins in October 1980, in the conference room of the Laboratory for the Structure of Matter at the Naval Research Laboratory (NRL) in Washington, DC, where Dr. Peter D'Antonio was employed as a diffraction physicist. Knowing Peter's interest in music, a colleague handed him the latest issue of Physics Today with a cover photo of Manfred Schroeder seated in an anechoic chamber. The article suggested using number theoretic diffusers in concert halls. While Peter's interest at the time was not in concert halls, he became fascinated with the thought of using these diffusers in a renovation of Underground Sound, a private studio he built in 1972 with friends. The acoustic renovation utilized a new concept called Live End Dead End™, originally proposed by Don Davis. At that time, Peter was examining the 3-dimensional structure of matter in various phases, using electron and x-ray diffraction techniques. It became apparent that the "reflection phase gratings" suggested by Schroeder were in effect 2-dimensional sonic crystals, which scatter sound in the same way that 3-dimensional crystal lattices scatter electromagnetic waves. Since the diffraction theory employed in x-ray crystallographic studies were applicable to reflection phase gratings, it was straightforward to model and design the reflection phase gratings. At this time, Dr. D'Antonio's only link to the field of acoustics was a love music. Having scientific backgrounds, he approached acoustics as he did the field of diffraction physics, and began researching and publishing findings in the scientific literature. The Audio Engineering Society and Syn-Aud-Con offered a unique forum and community for discussing the research.

1983: At the 74th AES Convention in New York, Dr. D'Antonio presented his research to an audience comprised mainly of those involved in the recording industry and interest quickly developed. Interest in recording facilities naturally spread to broadcast facilities, where diffuser technology is now commonplace. Early adopters of diffusion technology include the BBC, NPR, NBC and CBC studios. Many of the acoustical consultants involved in the design of worship spaces began to include the use of diffusers for rear wall applications. At roughly the same time, RPG's involvement with primary, secondary and university projects began to increase, because educational institutions are a microcosm of all of the applications RPG technologies address; classrooms and lecture halls, auditoriums, rehearsal halls and practice spaces, recording studios, natatoriums, multi-purpose gymnasiums.

1990: RPG funded the DISC Project in an attempt to devise a standard methodology for evaluating diffuser quality. In 1991, Dr. D'Antonio proposed a directional diffusion coefficient and the AES invited him to chair standards committee SC-04-02 to formerly develop an information document describing these procedures.

1994: Dr. D'Antonio met Dr. Trevor Cox in Amsterdam at an AES SC-04-02 standards committee meeting. Strong mutual interests led to an informal collaboration. In 1995, Dr. Cox became a research consultant to RPG Diffusor Systems, Inc. This relationship started with developing an automated program to optimize loudspeaker and listening positions in a critical listening room and blossomed to generate much of the contents of their book Acoustic Absorbers and Diffusers: Theory, Design and Application (Spon 2004).

Realizing that good acoustical design results from an appropriate combination of absorptive, reflective and diffusive surfaces, Peter and Trevor began developing absorption technologies as well, including hybrid systems capable of both absorbing and diffusing sound and low frequency control systems.

1996: To further the development of the diffusion coefficient, RPG co-funded a three year grant with the Engineering and Physical Sciences Research Council of the United Kingdom, beginning in 1996. Dr. Cox, Yiu Wai Lam and Dr. D'Antonio were the investigators and Tristan Hargreaves was the doctoral student. This research was very fruitful in that it produced the first 3D measurement goniometer and yielded a robust diffusion coefficient which has since been published in AES-4id-2001, soon to be incorporated as Part II in the ISO 17497-1.

There have been many significant accomplishments over the past 20 years. We now know how to design, predict, optimize, measure, characterize and standardize the performance of scattering surfaces. While there is still much to do, there is a general consensus in the architectural acoustics community that a solid theoretical and experimental foundation has been laid, that diffuser performance can now be quantified and standardized and that diffusers can now be integrated into contemporary architecture, taking their rightful place along with sound absorbers and reflectors in the acoustical palette. The future holds many exciting possibilities.
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Northwest Hospital
Northwest Hospital
Notre Dame
NOVA Southeastern University
NPR
NSW Nurse's Association
NYU Tisch School of the Arts
Oakcrest High School
Oakdale High School
Oakland Baptist Church
Oberlin College
Oceanside UFSD
Octopus Studios
Ohio University
Old State
Ole Miss NCNPR
Orange County PAC
ORB Studios
Orchard Cove
Ordway Center for the Performing Arts
Oregon Sound Recording
Orland Park School District
Orlando Studio
Osborne Elementary School
Osbourne Studio
Our Lady's Immaculate Heart Church
Oven Manhattan Studios
Oven Studio
Overlake Performing Arts Center
Owen Valley High School
Owens Community College
Pahokee Middle/High School
Paideia School
Paint Branch High School
Palance of Sports
Palms Casino Resort
Palo Alto Convocation Center
Palo Verde Community College
Pan American Health Organization
Paradyme
Paragon Music Productions
Paragon Site & Sound
Paragon Technology Group
Paramount Pictures
Parkway Presbyterian Church
Parkway Schools
Parroquia San Juan Evangelista
Parsippany Leadership Hub
Particle Studio
Patent & Trademark Office
Patterson Mill Middle High School
Pazdan Smith Architects
Peabody Conservatory
Peace Lutheran
Pelham Memorial High School
Pembroke Hill New Art Center
Pendleton Heights Middle School
Penfield CSD
Peninsula College Maier Hall & West Campus
Penn State University
Perkins School for the Blind
Peter Gabriel
Petra Academy
Philadelphia Church of God
Philadelphia Cricket Club
Philips
Phillipe Performing Arts Center
Phoenix CSD
Phoenixville Middle School
Pierson College
Pike High School
Pillsbury
Pioneer Jr/Sr High School
Plainfield High School
Plainville HS
Playback Recording
Pleasant Plains High School
Plum Creek Christian Church
Plymouth Elementary
Plymouth High School
Polk Audio
POP Sound
Popejoy Hall
Port Theatre
Porter Township High School
Porterville Church of Nazarene
Positec USA
Post Logic Studios
PostOp Australia
Poughkeepsie Day School
Power Studios
Prapaporn - Deco 2000 Co, Ltd. 2
Premier Audio
Presence Studios
Prestonwood Baptist Church
Primaural Studio
Priority Health
Procter & Gamble
Providence Academy
Providence Hospital Heart Institute
Providence School
Provident Equity
Pryor Cashman
Public Safety Campus
Purdue University
Pure Mix
Qualcomm
Radio One
Radiopolis
Raleigh Charter High School
Reach Media
Readiness Center
Reba McEntire
Red Bull
Red Cross
Red River High School
Redeemer Church
Redemption Studios
Redmond High School
Redondo Beach USD
Redstick Studios
Redstone Arsenal Band
Reel Deal
Regional HS Auditorium
Renton High School PAC
Resource Systems Group, Inc.
Retro Studios
Rice University
Richardson Performing Arts
Richland Group
Ridgeworks Studio
Right Track Recording
Ripley Grier Studio
River Oaks Baptist Education Center
Rivercenter for the Performing Arts
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Riverton High School
Riverview Medical Center
RMC Carolina Materials Inc.
Roamingwood Studios
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Rochester Middle School
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Ronald Reagan Building
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School of American Ballet
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Sense Audio
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Shepherd College
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Sheryl Crow
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Shure
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Sigma Sound
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Sleepycat Software
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Soka University
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Solvay High School
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Sonikwire Studios
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Sound 80
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Sound Strike Studio
Soundstruck Studios
South Adams Schools
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South Grove Elementary
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South Milwaukee H.S.
South Newton
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Squid Hell
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St. John's Lutheran Church
St. Martin of Tours
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St. Peter the Apostle Catholic Church
Stadium High School
Stanford in Washington
Stardum Studios
Starstruck Studios
Starpoint High School
Starz-Encore
Stephenson High School
Sterling Sound
Stevenson High School
Strathaven Middle School
Stratosphere Studios
Stryker Orthopaedics
Studio Metronome
Subcat Recording Studios
Summerville High School
Summit Christian Center
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Sunset Pool & Spa
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Surrey District Education and Conference Center
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SW Fixtures
Swarthmore College
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Sweetwater
Syn Aud Con
Syncrosound
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Tahari Designs
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Teatro Yaguez
Technicolor
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Telarc International
Telemundo
Televisa
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Temple Beth Elohim
Tent Records
Tequesta Country Club
Tequila Mockingbird Studios
Terra Community College
Texas A&M University
Texas South University
Thanksgiving Church
The Apollo Theater
The Arts Center at Old Forge
The Barber Shop Studio
The Chocolate Factory
The Engine Room
The Faint Studio
The Fathers House Church
The Jacob Burns Media Center
The Langley School
The Renaissance Center
The Sound Environment
The Sound Temple
The University of Utah
The Village Studios
The Word Church
The York School
Thirsty Ear
This Old House
Thomas Jefferson School of Law
Thousand Island
Tidewater Community College
Tisch School For The Arts
Titan Tenant
Towson University
TPG
Trackmasters
Training and Doctrine Command
Tranquility Audio
Transparent Audio
Tri State University
Trikin
Trillium Lane
Trinity Presbyterian
Triumph Baptist Church
Tri-West High School
Troublemaker Studios
Troup County Government Center
Troy Middle School
Trutone Mastering
Tufts University
Tully Hill Treatment Center
TV Globo
UC Berkeley
Uinversity of California
Ultimate Audio Video
UMass Lowell
Unified Communications
Union City High School
Union College
Uniondale High School
Union-Endicott CSD
Unionville High School
Unisys
Unitarian Church
United Building Materials
United States Department of State
United States Institute of Peace
Unity Health System
Universal Music Group
Universal Studio
University High School
University of Nevada Las Vegas
University of Akron
University of Arizona
University of Baltimore - Lecture Hall
University of British Columbia
University of Chicago
University of Denver
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University of Houston
University of Kansas
University of Mary Washington
University Of Maryland
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University of Miami
University of Michigan
University of Minnesota
University of Montreal
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University of Nebraska Omaha
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University of Puerto Rico
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University of Singapore
University of South Carolina
University of Southern California
University of Texas
University of Virginia
University of Washington
University of Western Michigan
University Prep
UPC Amsterdam
Upper Moreland High School
Upton Middle School
US Coast Guard
US Mint
US Naval Academy
Valley Bible Church
Valley Stream South High School
Van Dam Corporation
Van Wezel PAC
Vestal CSD
Vestas American Wind Technology
Victor Central School District
Victoria Art School
Victoria Espinosa Theater
Victoria Junior College
Victory Christian Church
Video Post and Transfer
Village of Addison Studio
Virginia Beach PAC
Virtua Health
Visionary Arts Museum
Vivendi
Vivian Beaumont Theater
W Hotel
W. T. Clarke High School
Wachovia
Wall High School
Warner Brothers
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Washington College
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Washington Elementary School
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Washington Post and Sound
Washington State
Washtenaw Community College
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Watertown Schools
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Wavetone Productions
Wawasee High School
Wayland High School
Wayne Township
Waynesburg Central High School
Waynesburg University
Waynesfield Goshen School
WBJC
WCRB
WEA Media
Wea Ridge Elementary School
Weatherhead School of Management
Wesleyan University
West 2nd Recording
West Bend Mutual
West Bowles Community Church
West Islip
West LA Music
West Liberty State College
West Seneca High School
West Shore Evangelical Free Church
West Vigo High School
West Virginia University
Western Geco
Western Kentucky University
Western Michigan University
Western Regional High School
Western Sun View
Westfield Middle School
Westminster
Westmoreland CSD
Weston High School
WFDID Film
WGBH
WGUC
Whale Branch Middle School
Wheatland Armory Project add ons
Wheatland Armory Project 8
Whiteland High School
Whitney Houston
Widescreen Magazine
William H. Willerman Geneology Center
William J Brennan High School
William Pete Knight High School
Williamsburg Community Chapel
Williamsville School
Wilmington Club
Wilmington Drama League
Wilmington High School
Wind FM 104.5
Wind Over the Eart
Windward Community College
Winfield Sound
Winnetka Congregational Church
Winter Garden
WITF
WK Weissman and Co.
WNYC
Woodrow Wilson High School
Woodside High School
Woodstock High School
Worcester Central School
Worcester School
Word of Life Fellowship
WPGC Infinity
WRAL Broadcasting
WTVI
WWE
WWF
WXPN
WXXI
Wyatt Church
Wyly Ranch
Wyoming Central School District
XM Satellite Radio
Yale University
Yamaha Corporation of America
Yellowfin Restaurant
Yonkers Public Library
York County High School
Zayed University
Zion Church of Praise
Zion Hill Missionary Baptist
Zion United Methodist Church
Zionsville School
Zoe Christian Fellowship

RPG's mission is to expand the acoustical palette of tools available to the design community by developing and representing innovative product systems through a continual commitment to fundamental acoustics research.
At RPG, we strive for a sustainable approach to manufacturing by meeting present needs without compromising the ability of future generations to meet their own needs. Sustainable construction is defined as "the creation and responsible management of a healthy built environment based on resource efficient and ecological principles". Sustainably designed buildings aim to lessen their impact on our environment through energy and resource efficiency. Sustainable facilities use land wisely, use energy water and materials efficiently, enhance human health and well being, are economical to operate, and promote recycling.

As one of the world's leading innovators in the design of leading edge acoustical products, we also keep it as a goal to be a leader in the industry in utilizing environmentally friendly materials and processes.

Some of the approaches we have instituted are:
  • Use of recycled materials and resources that are natural, plentiful or renewable.
  • Offering FSC® certified wood products.
  • Waste recycling efforts.
  • Purchasing "green" power.
  • Creating more resource efficient manufacturing processes.
  • Use of environmentally friendly plastics.
  • Use building materials, components, and systems found locally or regionally.
  • Use recycled or recyclable product packaging.
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RPG Diffusor Systems, Inc. © | 651 - C Commerce Drive, Upper Marlboro, MD. 20774 | Phone: 301-249-0044 , Fax: 301-390-3602 , Email: info@rpginc.com
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