Jupiter JSP1100 Quantum Marching Sousaphone

$9,199.00 $6,389.00

The Jupiter JSP1100 Quantum Marching Sousaphone (Previous 594L) features a .687″ Bore and a lacquered brass body produced using state of the art technology to ensure an instrument of the most accurate scale and playability.


The Jupiter JSP1100 Quantum Marching BBb Sousaphone features a full brass body and bell with a .687 inch bore and 26 inch bell designed for outstanding response and projection.

The stainless steel pistons have remarkably smooth, fast action for improved agility and playability. A removable valve section allows full access to areas that would be normally unreachable to a repair technician.


  • Key of BBb
  • Lacquered Brass Body
  • 26″ Bell
  • Stainless Steel Pistons
  • .687″ Bore
  • Removable Brass Front Action Valve Section
  • Silver-Plated Valve Section

The Jupiter JSP1100 Quantum Marching Sousaphone includes the following items:

  • Brand New Jupiter JSP1100 Quantum Marching Sousaphone
  • Hard-Shell Case with Wheels (KC-88A)
  • JBM-24AW mouthpiece

Warranty Coverage
All Jupiter instruments are guaranteed free of defects in workmanship and materials for a period of 10 years from the original date of purchase.

30-Day Satisfaction Guarantee**
We guarantee all our items to be as described and against defects. If you are not satisfied with a product, return the product within 30 days from delivery for exchanges or within 15 days from delivery for refunds.

**Restocking fees apply

Financing for purchases $99 and above is available through PayPal Credit. We also accept financing through Synchrony Financial for purchases $499 and above. Give us a call at 1-800-860-4077

Why Buy From InstrumentalSavings?

Family is the core of our business.
We are a small, family-centric company who have families’ needs in mind.

We have the right people to support you.
Our family is a team of professionals with specialized expertise in addressing your individualized concerns regarding musical instruments.

Your package comes with complete needed essentials.
Keep your instrument in top condition with free accessories.

You’ll have the peace of mind.
Being an authorized dealer for many brands, we deal directly with the manufacturer and suppliers of the instruments we offer online.

Whatever you say is important to us.
Customer feedback is critical for the success of our company. Give us a call at 1-800-860-4077 or email us at We are happy to serve you!



Additional information

Weight 88 lbs


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