More About Pendulum's CEO and Designer Greg Gualtieri   Greg Gualtieri has been involved in music-related activities for more than 30 years, as a musician, recording engineer and record producer. His technical background includes studio equipment design and modification, recording engineering, guitar amp modification and repair, and sound reinforcement. His knowledge of audio electronics is largely self-taught, starting with the design and construction of vacuum tube mic preamps, tube compressors, power amplifiers and mixers in the mid-sixties.   He holds a Bachelor of Science degree (BS) in Physics from Columbia University, and a Master of Science in Engineering degree (MSE) in Electronic Materials and Devices from Princeton University. During college, he worked at a number of recording studios in New York as a recording engineer and technical consultant.   From 1978-1988, he was a Member of the Technical Staff in research at Bell Laboratories in Murray Hill, NJ, where he conducted fundamental studies of the physics of III-V semiconductors, including the growth and characterization of ultra-thin semiconductor superlattice structures using Molecular Beam Epitaxy (MBE). Much of the equipment used in those studies, including the MBE growth apparatus, was designed and built by him. He also worked with a team of Bell Labs scientists on the restoration of the Statue of Liberty.   In 1988 he started his own company, Pendulum Audio, which specializes in the amplification of acoustic instruments and vacuum tube recording products. Pendulum Audio was the first company to market a rack-mounted acoustic instrument preamp, the HZ-10, back in 1988. He also continues to engineer and produce records, mostly solo or small ensemble projects involving acoustic stringed instruments. In 1995, he produced and engineered Kindred Spirits by Wayne Johnson (Polygram), a solo nylon-string jazz recording which reached the final nominating ballot for a Grammy award.