Decades of experience. Years of research and development. ALTO is the culmination of a long quest for the extraordinary by the Italian design visionary, Gian Piero Staffa. GP Staffa is the inspiration behind the ALTO line of analog and digital audio products, featuring sophisticated DSPs and a wide variety of state-of-the-art algorithms. ALTO delivers a full range of analog and digital processors,­ including revolutionary new products you won't find anywhere else.

ALTO products have been designed and engineered for the performing musician and professional sound engineer. Our top priority was to deliver products that sound great, but the price range may just be the most attractive in the world, and the functionality and approach to every product is very user-friendly. ALTO has something for everyone.

 At ALTO, professional music products are a passion... and an obsession 

Several of our digital processors can have their parameters set via PC, providing you with the benefits of the superior, large graphics interface of your computer monitor.
You can download the Windows based software right here from
this web site.


Click here for download.

 ALTO PC Software Downloads