The AM-1100 is built to last multiple lifetimes, and we have the history to prove it. A restored AM-1100 from 1960 is, on average, ten times more valuable today than it was brand new, thanks to the relentless durability still being replicated and improved upon today.

As the only modern accordion with a handmade solid-walnut keyboard, the AM-1100 takes the best from the 'Golden Era' of American production and embodies the best of tradition and combines state-of-the-art, contemporary materials and mechanics. The solid walnut fulcrum, as opposed to the industry standard brass (metal on metal), reduces friction and improves action and longevity. The walnut keyboard bed and felted guides create a silky smooth and responsive touch. The solid, hand forged aluminum key arms, waxed wood valves, dense felt & leather pads and lucite key tops result in the most efficient, precise and long-lasting keyboard ever produced.

The AM-1100 is built with the finest precision handmade reeds and calfskin reed leathers (no plastic), as are all petosa models. The aluminum plate, Swedish blue steel tongue and rivets are honed to perfection, mounted and tailored to each accordion, one at a time. Using traditional handmade techniques combined with new patented, computer engineered reeds and 3-piece mahogany & walnut blocks, the reed construction of an AM-1100 optimizes power, precision and responsiveness of the instrument. Two sets of reeds are mounted in the tone chamber made from one-piece of solid mahogany (not aluminum), creating what many refer to as 'the petosa sound'. 

All chromed and stainless steel or gold-plated hardware fortifies the AM-1100 and the accessories that go with it. Using machine screws instead of wood screws ensures the most secure and robust attachment points. Resistant to corrosion and rust, the chromed hardware is designed and installed to last lifetimes. 

The AM-1100 takes eighteen months to go from raw materials to a finished work of art. The combination of traditional, artisan construction techniques and modern, state-of-the-art materials and mechanical engineering give rise to the ultimate accordion masterpiece. The contemporary AM-1100 embodies the highest level of craftsmanship that has ever been produced in the accordion insdustry and to this day, maintains its reputation as the world's highest quality accordion. As a Stradivarius or Ferrari is not for everyone, those that desire the abosulte finest product of its class will appreciate the enduring quality and expression that only improves with time. The 1100 becomes a part of the artist and their family which will be passed down from one generation to the next.