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King KMP411 Marching Mellophone - Lacquer Certified Open Box

F Marching Mellophone with 10" Yellow Brass Bell, 0.468" Bore, 3 Stainless Steel Pistons, First Valve Slide, Notched Main Tuning Slide, and Open-wrap Third Slide - Lacquer
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Item ID: KingMP411d2
King KMP411 Marching Mellophone - Lacquer

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Price:$1,889 and 10 cents
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Condition Notes:

Mellophone looks cosmetically like new with the exception of a scuff mark along the bell throat. All accessories included. In original packaging.

This item was thoroughly inspected by our factory-authorized service team and is backed by Sweetwater's exclusive 2-year warranty. The images shown do not necessarily represent the condition of this particular item.

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King KMP411 Marching Mellophone - Lacquer
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The Ultimate Matching Mellophone

The King KMP411 is the ultimate marching mellophone. To design this horn, King consulted the award-winning marching brass experts, the Blue Devils. The results? The KMP411 marching mellophone produces a brilliant, strong tone that projects extraordinarily well. Players will immediately appreciate the relocated valve cluster that enhances comfort and lessens fatigue. Additionally, stainless steel pistons ensure that the horn functions properly, marching season after marching season. King and the Blue Devils also added a first-valve saddle, a notched main tuning slide, and an open-wrap third-valve slide for improved intonation and a free-blowing feel. Finished in lacquer, the King KMP411’s appearance, in addition to its tone, really shines under the bright lights.

Built for the Blue Devils

King worked closely with the Blue Devils to design the KMP411. As the most decorated group in the illustrious history of Drum Corps International (DCI), the Blue Devils know what they need from a brass instrument. Naturally, the KMP411 mellophone lives up to expectations. Everything about this horn is focused on ergonomics, ensuring a comfortable playing experience that doesn’t aggravate repetitive strain injuries such as tendonitis and carpal tunnel syndrome. Designed with performers in mind, the King KMP411 mellophone offers an outstanding playing experience and a championship-winning tone that’s sure to impress.

Championship-caliber tonality

Designing an instrument for the most successful group in DCI history is no easy feat. Yet, King struck gold with the MP441. Pitched in F and constructed from yellow brass, the KMP441 produces a vivid alto voice that projects across the field with ease. This mellophone has a 0.486-inch bore for a free-blowing feel. Meanwhile, three valves with stainless steel pistons provide a smooth playing experience for many years. Finally, a first-valve slide saddle offers on-the-fly intonation adjustments, ensuring each note blends perfectly with the other horns in your ensemble.

Thoughtful touches elevate your playing

Every detail of the KMP411’s design was carefully considered during the design process. And all of those details are immediately apparent the second you take the instrument out of the case. The most impactful change lies in the valve cluster’s location. King shifted the valves to improve the KM411’s balance and weight distribution. You’ll also notice improved airflow courtesy of the open-wrap third-valve slide. Finally, the notched main tuning slide offers extra grip for intonation adjustments when wearing gloves. These improvements and other small tweaks lead to players experiencing less fatigue, achieving better intonation, and marching to their full potential.

King KMP411 Marching Mellophone Features:

  • Professional F mellophone designed with the Blue Devils
  • 10-inch yellow brass bell offers robust projection
  • 0.468-inch bore creates a pleasing alto voice that blends well with other brass instruments
  • Modified valve cluster location improves the balance and weight distribution
  • Stainless steel pistons provide a smooth, long-lasting playing feel
  • Notched main tuning slide provides extra grip for tuning or removing the slide with gloves on
  • 1st-valve slide saddle enables on-the-fly intonation adjustments
  • Open-wrap 3rd-valve slide lessens resistance
  • Lacquer finish provides extra sonic warmth
  • Ships with a stackable ABS case and King KME mouthpiece
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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Tech Specs

  • Type: Mellophone
  • Level: Intermediate
  • Key: F
  • Finish: Clear Lacquer
  • Bore: 0.468"
  • Bell Size: 10"
  • Valves: First: Slide Saddle, Third Slide: Open-wrap
  • Mouthpiece: King KME
  • Case/Gig Bag: Hardshell ABS Case
  • Manufacturer Part Number: KMP411

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See also: King, King Mellophones