Everything in Music - Since 1958



Marcus Bonna MB-BTBN Bass Trombone Case


  • Our Price
  • Regular price $625.00

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• Inventory changes daily
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Get A Premium Design Case, Available In A Custom Finish That Represents Your Unique Taste - The Marcus Bonna MB-BTBN Bass Trombone Case

Available for 2 bell sizes: 9.5 inches and XL model for bells with 10.5 inches. The Marcus Bonna Bass Trombone Case includes 2 backpack straps, shoulder strap and mouthpiece pouch (for 3 mouthpieces).

ABOUT MARCUS BONNA CASES

Marcus Bonna was a São Paulo State Symphony Orchestra horn player from 1982 to 2002.

After suffering an accident in 1990 and have had his back seriously hurt, he projected a case for himself, lighter, compact and with a brand new design in order to facilitate the transportation of his instrument, as the cases which there were in the market were too big and heavy.

At his surprise, the case was so successfully among his colleagues from the orchestra that, in a short time, the same colleagues had the new case made in fiberglass by Marcus Bonna himself. (Model MB 1).

In 1991, the Munich Philharmonic Orchestra had a performance in São Paulo. When the horn players from this orchestra saw the new horn case model they got very impressed and interested in getting one.

For this reason, to start sending the orders, not only to Brazil but also abroad, in 1991 the MB company was founded, that nowadays has 45 employees at his own head office located in Bragança Paulista (80km from São Paulo).

Besides the production section and the management section, the Company also has a good canteen, play room and an auditorium with a grand piano to classes and chamber music. The MB exports about 480 cases a month for more than 25 countries. All the cases and mutes are handmade. The cases model are exclusive (some of them are protected by a patent), all designed and developed by Marcus Bonna himself.



  • Concealable backpack straps
  • Multiple storage compartments
  • Can be carried on back or via carrying handle

The MB cases can be made with more than one color and blend nylon with leather.

Special Order Colors Available in Nylon (Numbers match color samples pictured:

  • 1 – Black
  • 2 – Dark Brown
  • 3 – Brown
  • 4 – Camouflage
  • 5 – Moss Green
  • 6 – Dark Green
  • 7 – Green
  • 8 – Turquoise
  • 9 – Blue
  • 10 – Gray
  • 11 – Beige
  • 12 – Wine
  • 13 – Red
  • 14 – Yellow
  • 15 – Pink
  • 16 – Purple
  • 17 – White

Special Order Colors Available in Leather (Numbers match color samples pictured:

  • 1 – Black
  • 2 – Dark Brown
  • 3 – Brown 2016
  • 4 – Light Brown
  • 5 – Beige
  • 6 – Wine
  • 7 – Blue

** Special order colors must be specified at checkout and may require additional time for production. Please call us at 301-946-8808 with any questions regarding this product.



  • Finish: Black
  • Number Of Instruments Held: 1 Bass Trombone
  • Backpack Straps: Yes
  • Sholder Strap: Yes
  • Internal Storage Compartment: Yes
  • Sheet Music Storage Pocket: Yes
  • Carry Handle: Yes

Manufacturer: MARCUS BONNA
Model: MB-BTBN
SKU: I236292-N-0-WHXE


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