I also had my acccordian amplified by Sano. I drove down to NJ myself and waited for it while they did the work. The pick up is still on mine. I also had their amp. I had them install a 15" University speaker. They had to mount the amplifier on the side of the cabinet because the speaker was so large. That sucker was heavy. I eventually sold it when I moved to Florida.
I used to go down to South Philly when I needed adjustments. I think the fellow who did the work was named Franchetti. A great technician from Italy...where else.
Some of my teachers were, Andy Arcari, Nick Fantazzi, Joe Soprani and Jacob Neupauer....oh also Matt Mathews for some jazz stuff.
A great time in my life.