In 1913 there was the forerunner (Stoddard-Ampico), from 1920 on the mature Ampico A and from 1929 on the further development - the Ampico B. The Ampico B can be regarded as the last development stage of all reproduction instruments. In the book "Re-Enacting the Artist" Larry Givens writes about the Ampico B system: "With its fewer moving parts, its electric roll drive mechanism, its quieter pump and exhaust, its rapid-acting valves, and many other improvements and innovations the Model B Ampico cannot be considered anything less than the zenith of player piano development. “

The scale of the Ampico B system has 100 holes in the note sliding block plus the two levers for the track control. In the Ampico Inspectors Book 1929 the assignment of the 100 holes is given like this.

The Ampico B scale has the following assignment (from left to right):

Hole 0: Amplifier

Hole 1: blank

Hole 2: Intensity

Hole 3: Loud Pedal

Hole 4: Intensity

Hole 5: Shut-off

Hole 6: Intensity

Hole 7: Cancel

Hole 8 to 91: 83 tones from B2 to a4

Hole 92: Re-Roll

Hole 93: Cancel

Hole 94: Intensity

Hole 95: Almost Crescendo

Hole 96: Intensity

Hole 97: Soft pedal

Hole 98: Intensity

Hole 99: Slow Crescendo

Hole 100: Sub Intensity

Even though Ampico A was replaced by the even better Ampico B in 1929, Ampico A was the main product sold - and is still in great demand today. Certainly one of the most beautiful reproduction systems!