Classic PETOSA AM 1100 Accordion -  The Flagship Model!

Dear Accordion Friends,

This is a classic Petosa AM 1100 accordion, built in 2004 and still in excellent condition. This fabulous acoustic instrument comes with a factory installed S-2000 MIDI controller, fully programmed and ready to be used. This accordion has been a dream for a generation of American musicians. It features the famous Petosa mahogany chamber and solid walnut keyboard. The mechanics is indestructible. The tone is rich and powerful. With one set of bassoon reeds and three sets of clarinet reeds the instrument features both concert and musette sounds. The M1 and M2 reeds are tuned in unison for a beautiful concert tuned violin sound and the third set of clarinet reeds (M3) is tuned sharp to allow for musette sounds when used in combination with the other concert tuned reeds. The 10 (!) bass switches would allow you to find the perfect balance between treble and bass for any selected reed combination. In addition to the excellent acoustic features, the accordion has built-in microphones and a full MIDI installation with very friendly grill controller. You can play this accordion as a fine acoustic instrument, as amplified accordion, as a MIDI instrument sounding like a full orchestra, or in any combination.

The AM 1100 model features the best hand-made reeds available with double tone chamber from solid mahogany and low-A bass configuration.  It remains the flagship model of Petosa Accordions in Seattle.

I can't stress enough how important it is to have a professional programming in order to enjoy the electronics orchestral capabilities of a MIDI accordion. With a Solton MS40 or Ketron XD3 (available on request) you can control in real time not only the orchestral sounds but the rhythms and styles, alternate between different variations of a particular pattern, play along with MIDI files etc. Of course, you can use this accordion with any other MIDI module you choose. Here is a taste of what is possible with this instrument. Videos courtesy of Petosa Accordions:

Chuck Berger - Solitaire

Chuck Berger - String of Pearls

Below is a recent video demo of the acoustic accordion, courtesy or Petosa Accordions. The tuning of the instrument for sale matches the tuning from the video:

Ray Harris - European Waltz

The packages comes with the following accessories, already nicely interfaced and ready for real time performance:
The following (optional) MIDI modules/arranges are available for purchase with this accordion

This instrument is one of the best you can find. The tone is clear, yet rich and strong. Each reed combination has unique tonal color. The acoustic balance between treble and bass is excellent. The reeds are very efficient and allow for a great dynamic range. With the custom tuning you can play a huge variety of music and always enjoy an authentic sound - jazz, classical, ethnic, Italian, German. The orchestral capabilities of the MIDI will open a whole new universe for musical expression. It doesn't get any better!

Our children and grandchildren will still admire the craftsmanship and the tonal personality of the AM 1100. Yes, I am confident there is future for the accordion. The time of prejudice is gone. You can tell by the accordion music featured in many movies and recent TV commercials for American Express and BMW. Even the popular TV show "The price is right" featured an accordion recently, a Petosa accordion. I am very pleased to see many young talented musicians perform on the accordion.

I hope you enjoy the pictures below and would be glad to hear from you at 973-770-6877 with any questions.











The profile of the palm master switch is very smart and helps avoid interference
with the performers right leg while sitting on a chair.




All cables and accessories are included, neatly stored in a custom made sturdy metal suitcase with foam padding:
1. S-2000 module (serves as a tone generator and power supply (the black box with blue print)
2. Effects pedal board (connects to the S-2000 module with the black cable in the middle - see picture below)
3. Volume pedal (connects either to the S-2000 or the external MIDI module)
4. MIDI data cable connecting the accordion to the S-2000 module (multi-pin connectors)
5. General MIDI cable (the red one) connecting the MIDI Out of the S-2000 to an external MIDI module
6. Stereo audio cable for the accordion microphones (connects to the accordion)
7. Mono audio cable for the electronics sounds (connects to the external MIDI module)
8. Power cord





This instrument was built to last for generations of musicians. The interior is as nicely finished as the exterior.
All parts have been carefully selected and are in excellent condition - the keyboard valves, the reed leathers,
the wax, all mechanical assemblies... All metal components are anodized and will never corrode.
The reeds are fabulous and the response is truly impressive.


Accordion Gallery