Architectural Acoustic Design & Consulting 

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Who We Are



Francis Manzella

President & Principal Designer

Mr. Manzella has over 30 years of studio experience including 21 years operating FM Design and more recently as a partner at Griffin Audio USA. He brings all of this experience to every project that FM Design is involved with.

email Francis



Bill Seegmuller

Senior Designer & Staff Architect

Bill has been working with FM Design for 8 years as staff architect and more recently as senior designer. He has over 20 years of architectural experience and can handle any design challenge he’s presented with.

email Bill



Lars Tofastrud

Senior Acoustician & Staff Designer

Lars has been working with FM Design since 1999 when he first immigrated to the US. His passion for acoustics and loudspeaker design is only matched by his devotion to making sure things are done right!

email Lars



Roberto Rosu

European Sales Representative, Rome Italy

Roberto is an experienced recording engineer and has been involved in numerous European projects with FM Design over the past several years. He is now our EU representative and will be happy to discuss studio projects or Griffin sales with our prospective EU customers.

email Robi

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FM Design Ltd. Contact Information:


Francis Manzella Design Ltd.
961 Route 6
Mahopac, NY 10541 USA

tel: 914.248.7680
fax: 914.248.7780

FM Design – Rome Office
Viale Vega, 60
00122 – Rome – Italy

tel: +39.330.922322

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