Dennis Murphy speaker designer

RAD is proud to offer speaker kits designed by Dennis Murphy.

Dennis  is a professional violinist and highly respected speaker crossover virtuoso. Working with Jim Salk for many years, Dennis designed the award winning ‘Song Towers’ among many others.


Dennis has once again garnered rave reviews with his Philharmonic Audio, high-value gems. The Philharmonic 3 has to be on every audiophile’s wish list.

 Dennis also operates ‘Murphy Blaster Productions’.
This is a website that is dedicated exclusively to the art and science of amateur loudspeaker design.


We are overwhelmed that Dennis has unleashed his wizardry on RAD speaker kits.

Thank you Dennis! 


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