About Us

Specializing in acoustics and system design for
high-end home theater, production, broadcast and recording studio applications

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About PMI:

PMI, Ltd. is a consulting firm specializing in the design and engineering of world-class home cinemas and professional studios. PMI has completed a broad array of projects throughout the world, including private home theaters for famous actors, directors and producers, as well as recording studios, broadcast facilities and high-end A/V dealer showrooms. PMI provides complete design/engineering packages, calibration services and also facilitates the entire construction and implementation process of the designed room. Constantly innovating and pushing the performance level of their systems, PMI's designs are comprehensive, covering every aspect of a project that will be implemented by its A/V dealer partners, architects, interior designers and builders.

Anthony Grimani founded PMI in 1999. As a veteran of Dolby Labs and Lucasfilm THX, he played a major role in developing many of the standards for home theater. Tony has assembled a professional team with vast experience in the fields of acoustics, physics, architecture, mechanical engineering and construction. PMI's design have won many awards including the Best Overall Large Home Theater category at CEDIA Expo 2007, and their work has been featured in magazines such as Home Entertainment, Audio Video Interiors and Home Theater. PMI conducts training workshops and seminars worldwide about Home Theater Acoustics and Calibration. Please contact PMI at 415-883-1476 for more information

PMI has completed an impressive number of projects worldwide. Please click here for more information. Click here to see the video

Interested in contracting PMI engineering services? Start here by downloading the questionnaire form and submitting it to us for an initial quote. Have a need for Soundproofing? Click here


The Staff:



Anthony Grimani – President and Lead Consultanttony

Anthony Grimani has a bachelor's degree in Electrical Engineering from the University of California at Davis.
His 25+ years of experience in the audio industry include executive positions at Dolby and Lucasfilm THX, and
have earned him the “50 Most Vital Influencers” award from CustomRetailer magazine as well as being inducted
as Fellow of the CEDIA trade association. In 2013, he was named by CEPro Magazine as one of the “Top 20 Most Influential People of the Past 20 Years.”

At Dolby, Anthony was intricately involved in the development of surround sound for consumer applications. During his nine-year tenure at THX, he managed the THX consumer licensing program and the technology development program, setting the direction for consumer and professional Audio/Video businesses. Anthony developed the Home THX program, the THX PM3 program, and invented the revolutionary Surround EX 6.1 channel audio format pioneered in Star Wars, the Phantom Menace.

Anthony is a frequent lecturer at industry conferences such as AES (Audio Engineering Society), and CEDIA
(Custom Electronics Design and Installation Association), earning the CEDIA Top Instructor award. He holds
six patents in the area of audio and acoustics, and is a frequent contributor to the industry’s most read and
respected trade magazines.

Manny LaCarrubba- Chief Engineermanny

Leading PMI’s engineering team, Manny is responsible for expanding and improving its methodologies and technologies for the engineering and specification of high-end residential or commercial screening rooms, recording studios, and performance venues. Manny has worked as a recording engineer in the music industry, and as a consulting technology engineer to the semi-conductor industry specializing in noise and vibration control. In the late 1990s, he founded Sausalito Audio to commercialize patents related to loudspeaker design, and to produce advanced audio and architectural loudspeaker systems for custom installation.

For 10 years, Manny was a staff and chief engineer at famed Sausalito recording studio, The Plant. His music engineering credits include tracks and albums for Santana, Michael Bolton, Celine Dion, Kenny G, Mariah Carey,
and many more. He also designed some of The Plant’s seminal recording rooms.

Manny earned a BS in Tonmeister Studies from State University of New York at Fredonia. He holds several patents related to loudspeaker engineering, all of which have been integrated into commercial products manufactured by
Bang & Olufsen of Denmark. He is a member of the Audio Engineering Society (AES), and is featured in videos
produced by Secrets of the Pros where he teaches studio design, acoustics, and recording and mixing techniques.

Mario Previti – Design Engineer

Bio and picture coming soon.

Chase Walton – Associate Engineerchase

Chase initially joined the PMI team in 2002 as an intern fresh out of high school, having already accumulated several years of experience with recording engineering, FOH sound mixing, and home audio systems. The following year he was brought on full time as an Associate Engineer at PMI’s home office in Marin County, CA, to assist in a variety of capacities, including acoustic design and engineering, drafting, audio system calibration and commissioning, and technical editing and publication.

Chase has since moved back to his home in Memphis, Tennessee, where he evaluates new and emerging technologies for PMI and works closely with PMI’s Anthony Grimani to write informational and instructional articles in leading industry trade publications. In between projects for PMI, Chase serves as a video consultant and theatrical lighting designer for a 5500-seat megachurch, where he works with Dove- and Grammy-winning recording artists on a weekly basis. Chase enjoys attending classical, blues and rock concerts, watching movies
at the cinema, and experimenting with his personal home theater and media rooms. He is also an avid video gamer.  


Susan Harward – Office Coordinatortony

Susan, as the PMI Office Coordinator, brings 25 years executive support and administration experience to the PMI lineup. Although her main love is singing opera and teaching using her Masters degree in classical voice, Susan performs live everyday as "The Voice of PMI" and is the first voice you hear when you call our office.

Susan's professional business backgrounds include manufacturing, systems administration, computer networking, mortgage banking secondary markets, customer service and retail sales. Susan, who moved to California from St. Louis, Missouri in 1997 and to this area in 2005, is still exploring Marin County and the San Francisco Bay area.

Her free-time pursuits frequently involve photography, philosophy, hiking, gardening, attending the San Francisco
Opera, playing with pets, social networking, reading and cooking.

Sophie Hannibal –Marketing & Communications Manager

Sophie has over 20 years’ experience in brand marketing and communications across regional, national and international markets. In various roles, Sophie has coordinated high-profile projects and product launches for the Hollywood Roosevelt Hotel, Graceland, Cineplex Odeon Cinemas, Ringling Bros., and more. She was the national fundraising director for Variety Club Children’s Charities where she developed and launched their successful and long-running Gold Heart Campaign in cinema chains across North America.

Sophie worked 10 years for DTS Inc., marketing audio products and technologies for the motion picture and consumer electronics industries. She spent four years in the company's UK operation directing European and international marketing, including collaborative projects at the Cannes, Venice, and Berlin Film Festivals. She also produced several of the company's coveted demo discs and theatrical trailers, high-profile trade shows, and award-winning marketing campaigns. Sophie has worked with PMI since 2010 managing marketing, communications, PR, and social media.

She is passionate about movies and music, and is a connoisseur of French macarons and American ice cream.

Jennifer Chown –Accounting Manager

Jennifer is PMI’s in-house accounting manager. She holds a B.A. degree from Raymond College at the University of the Pacific, as well as an MBA degree from Sonoma State University. She is a certified QuickBooks ProAdvisor, and is licensed by the California Tax Education Council as a certified tax preparer.

Jennifer has over 25 years’ experience as an accountant and business consultant, and has been the accounting manager at Prairie Sun Recording in Cotati, California since the mid-eighties. She is a native Californian and Sonoma County resident, with a background as a blues and classic rock singer and keyboard player.



Performance Media Industries, Ltd.

61 Galli Drive, Suite B.

Novato, CA 94949, USA

415 883 1476 Tel

415 883 8147 Fax