Jun 1, 2005 1:54 PM, By the Mix Editors

RPG ACOUSTICTOOL PACKAGES
October 2006—RPG’s new AcousticTool™ packages offer the project studio owner an affordable, aesthetic, fabric-finish, Class-A fire-rated, high-performance pre-engineered room treatment solution. The AcousticTool packages usher in a new era of versatility with the RPG Room Scaling Matrix™, allowing users to quickly and easily configure their package to virtually any size room. www.rpginc.com

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RPG STUDIO IN A BOX PACKAGES
October 2006—RPG’s new Studio In a Box™ packages offer the project studio owner a very affordable, expandable, aesthetic, Class-A or -B fire-rated, high-performance pre-engineered room treatment solution. The Studio In a Box packages usher in a new era of versatility with the RPG Room Scaling Matrix.

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RPG INC. MODEX BROADBAND
October 2005—Control rooms often exhibit poor low-frequency response with significant emphasis at modal resonances. Porous surface absorption is ineffective because the air motion it requires is essentially zero when near room boundaries. The Modex Broadband was developed to offer broadband absorption effective from 50 to 5k Hz in a thickness of only four inches. Every now and then, a new technology comes along that changes everything. Now you can absorb more bass in less space! Price: $999 USD.

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RPG DIFFUSOR SYSTEMS MODEX PLATE
November 2004—Critical listening spaces often exhibit poor low-frequency response with significant emphasis at modal resonances. Porous surface absorption is ineffective at these frequencies because the air motion at the walls and in corners is essentially zero. The Modex Plate offers broadband low-frequency absorption effective from 50 Hz to 500 Hz in a thickness of only four inches. Now you can absorb more bass in less space! Retail: $999.

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RPG DIFFUSOR SYSTEMS HEMIFFUSOR
October 2003—The classic 2-D QRD® diffusor that has been so popular in the pro studio and broadcast markets is now available in a lightweight, easy-to-install version for project studios and other home environments. Suitable for surface-mount wall and ceiling applications, as well as lay-in standard 15/16-inch T-bar ceiling grid. The industry's most efficient and scientifically validated diffusor is now more affordable than ever! Finishes: white and “granite” gray. Size: 23x23x41⁄4 inches (TxWxD). (Extends 31⁄4 inches below T-bar for lay-in ceiling installations.) MSRP: $199.98/box of two (white).

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RPG DIFFUSOR SYSTEMS HEMIFFUSOR
September 2003—This new, low-profile, 2-D, RPG-signature diffusor is now available in an easy-to-install version for the project studio. Suitable for either wall or ceiling applications, the diffusor comes in either white or gray, is 23 inches square and 41⁄4 inches deep and comes two to a box for $200.

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RPG DIFFUSOR SYSTEMS STUDIO-IN-A-BOX
June 2002—The Studio-in-a-Box Silver Package ($549.99) is the first in a series of project studio turnkey solutions from RPG Diffusor Systems. Including 46 individual pieces, Silver Package uses the company's ProFoam Panels to control comb filtering arising from strong reflections in a small room, ProFoam Tiles mounted in a 1x1-foot checkerboard pattern to provide a variable-impedance surface and four ProCorners to increase low-frequency absorption down to 125 Hz while seamlessly integrating with the kit's ProFoam Panels. Studio-in-a-Box Silver Package components come in white, white-fleck and gray-fleck Class-A Melaflex, and charcoal gray, blue and purple Class-B/C Polyflex material. One kit can acoustically treat a project studio room up to 14x10x8 feet high.

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RPG DIFFUSOR SYSTEMS STUDIO-IN-A-BOX
June 2001—RPG's Studio-in-a-Box Silver Package (starting at $499 for Class-B and -C, $935 for white-fleck Melaflex Class-1 material) is the company's first in a series of affordable project studio packages. Included are 10 ProFoam wall panels for first reflection control, 32 ProFoam tiles for moderating diffusion and four ProCorners traps for extended low-frequency control. Available as demo downloads from RPG's Website are Room Optimizer and Room Sizer, Windows 95/98 software packages that offer “automated listener” and “loudspeaker placement” advice, respectively. The programs are $99 each. TO READ THE REVIEW ON THE ROOM OPTIMIZER, CLICK HERE.

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RPG DIFFUSOR SYSTEMS SKYLINES AND MOLDEX
June 2001—Another great Website for learning about the fundamentals of acoustic soundproofing is offered by the folks at RPG Diffusor Systems. An extensive thumbnail gallery indexes a variety of architectural, home theater and project studio products, each with a close-up JPEG, extensive absorption and diffusion coefficient graphs and downloadable installation PDFs. RPG's Skylines diffuser panel ($284 for box of two) is an art-worthy, 2-D “primitive root diffusor.” The Modex Corner ($564 for box of two) is a stackable corner-mounting, pressure-zone membrane absorber that stands 25 inches high and extends 17 inches out from a corner along the mounting walls. The unit can also be used freestanding to deal with excess low frequencies.

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RPG DIFFUSOR SYSTEMS ROOM SIZER
October 2000—The first Windows program that automatically determines the best length, width and height for a room, given a range for possible lengths, widths and heights. Just enter the dimension ranges, and the optimum dimensions are determined. You can have the flexibility of choosing solutions for rooms that will use electronic equalization, or will not use electronic equalization.

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RPG DIFFUSOR SYSTEMS CATT ACOUSTICS
October 2000—CATT acoustics is the industry's leading acoustical predication and auralization software. Room acoustics prediction is the process in which using geometrical acoustics, octave-band echograms are predicted based on a 3-D CAD model of a room. Frequency-dependent material properties (absorption, diffusion) are assigned to room surfaces and frequency-dependent source directives are assigned to sound sources. Auralization is the process in which predicted octave-band echograms are converted to binaural impulse responses that can be convolved with anechoically recorded speech or music giving an impression of how the music or speech would sound if replayed in the modeled hall.