AM-1100 Jazz Century Edition Black Knight (19 1/2" LMLM II TC)

AM-1100 Jazz Century Edition Black Knight (19 1/2" LMLM II TC)

AM-1100 Jazz Century Edition Black Knight (19 1/2" LMLM II TC)

10-Year Warranty
Lifetime Maintenance
Reed Guarantee
10-Day Trial
10-Year Warranty
Lifetime Maintenance
Reed Guarantee
10-Day Trial

Special 100 Year Anniversary series AM-1100 Jazz 

Featuring Voci Armoniche's revolutionary  BlueStar® reeds

The ultimate Jazz accordion, handmade by the finest craftsmen in the world. Referred to by Frank Marocco as “The best accordion I’ve ever played”. The AM-1100 series is simply the finest acoustic accordion being produced today. The sound of two Bassoon reeds in unison is unequaled in an accordion of this quality. The Jazz model includes the petosa Mahogany Mute, making it the ultimate Jazz accordion; extremely powerful, resonant and warm. As with all AM-1100 models, the AM-1100 Jazz is forged from over a century of building the finest accordions in the world. Using only the highest quality materials available and the world’s most distinguished craftsmen, the AM-1100 belongs to a class of its own, setting the standard of excellence in the world. Uniquely and individually handcrafted from the highest quality materials through four generations of craftsmen, no accordion is as powerful in sound nor will endure the test of time like an AM-1100.

Virtual Catalog: petosa AM-1100 Jazz Catalog

In 2022, the year of our 100th anniversary, the BlueStar® reed has replaced our finest handmade reed as the top of the range, it exceeds in acoustic and functional potential. The new BlueStar® voices are a natural result of a new vision in the art of crafting reeds. They are the conclusion of a path of observation, study and improvement by third generation Lorenzo Antonelli. They are not considered handmade; nor a variant, or a restyling. The BlueStar® is a new voice, different from the voices of the past and those of today, because it contains substantial innovations and differences.

Compared to the handmade reed, the BlueStar® reed has specific improvements:

1) Enhanced overall timbre and functional homogeneity resulting from today's most advanced computer measuring software to enhance precision of the tongue shapes. The precision between tongue and plate has been raised to the highest possible degree.

2) Stability of the final tuning while preserving the important chargepoint.

3) Resistance to fatigue failure, improved by the thermal bluing treatment.

4) Thermal bluing of the tongues also improves the steel in its metallurgical properties, consequently improving the functional characteristics of the reeds (usability, ductility, dynamics, homogeneity).

BlueStar® is a natural evolution of innovation and technology; improving on the best characteristics of the finest handmade reed, resulting in the most refined, dynamically responsive and powerful reed produced today. When joined together with special, precision-modified reed block chambers, the result further optimizes the characteristics of this new voice. petosa is pleased to be in partnership with Voci Armoniche to bring this pioneering concept to market - now available in select petosa models. 

Keyboard: 19 1/2" (49.5 cm) (20mm keys)

Treble/Bass: 41 keys/120 buttons (low A)

Registers: 13+Master treble (2 Mute on-off) / 10 bass

Reeds: 4/5 sets Voci Armoniche BlueStar reeds

Configuration: LMMH +0  (A-440Hz)

Tone Chamber: Solid-aged Mahogany Double Tone Chamber (LM)

Weight: 27 lbs (12.3 kg)

Dimensions: 47.5 x 19.5 (cm)


5-ply Mahogany Box construction. petosa mahogany treble Mute system (open/close). Double Tone Chamber (LM) handmade from one-piece of solid, aged mahogany. petosa 100% handmade Walnut keyboard/guides with lucite key tops. petosa's dense felt and leather valve pads. Mahogany reed blocks featuring cedar chambers and newly designed air cavity optimization. Hand-cut genuine leather reed valves. Exclusive petosa-designed mahogany bass board and cover plate. All-chromed & insulated silent bass mechanics. 


  • Custom V-100 Premium Contour shoulder straps
  • New V-100 Premium Bass strap
  • New Back Pad
  • New AC-1 petosa cloth cover 
  • Premium petosa hard case w/ wheels

Optional Accessories:

Optional Upgrades:

10 Year Warranty

Free Maintenance for Life

petosa Reed Guarantee

10 Day Trial

Prorated shipping & insurance - add to cart for rates

0% Interest available through Synchrony Finance

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