Musser M31 - Windsor II Kelon
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Manufacturer Information
Musser
https://www.connselmer.com
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Historical Context and Positioning Within the Range
Within the Musser 4.0 octave marimba series, the Windsor II M31 is positioned as a solution focused on mobility and versatility. It incorporates the appreciated principles of instruments designed for field use: easy transport, quick setup, and thoughtful ergonomics, without sacrificing projection or tonal balance. This approach makes it a coherent choice for musicians who alternate between classrooms, rehearsals, and concerts.
Who This Drum/Marimba Is For
The Musser Windsor II M31 is aimed equally at students in conservatories and professionals seeking a reliable and easy-to-move marimba. Its range from C3 to C7 suits classical, contemporary, stage music, and percussion ensembles. Its folding frame and included accessories also make it an excellent choice for institutions (schools, associations, orchestras) that need to regularly store and set up the instrument.
Features and Innovations
The Windsor II emphasizes pragmatic design: folding aluminum legs (cart-style frame) for easier transport, and height adjustment in 5 positions to optimize posture and access across the keyboard's full width. The aluminum resonators with silver powder coating enhance durability under intensive use. The instrument comes with a pair of MUS117 mallets and shallow drop covers, practical for protecting and securing the instrument during transport.
Sound
The Kelon bars provide a clear and homogeneous sound with very stable behavior over time. This material is valued for its consistent touch and ability to maintain a clear attack, useful for fast passages and ensemble articulation. The ungraded bars maintain a uniform feel under the mallets across the entire range, facilitating technical work and reading.
The aluminum resonators contribute to effective projection and strong presence in the room. The goal is a balanced output: well-supported lows, clear mids, and precise highs without harshness. The powder coating mainly adds robustness, a real advantage for an instrument intended to travel and be frequently handled.
Technical specifications
| Number of blades | 49 | Material | synthetic |
| Number of octaves | 4 | Accessories included | Sticks, Cover |
| Category | orchestra | ||
| Range | 4.0 octaves (C3 - C7) | Frame finish | black plexitone |
| Standard tuning | A = 442 Hz | Adjustable frame height | 5 positions |
| Other tunings | available | Height | 32" - 36.5" |
| Bar material | Kelon | Length | 61.5" |
| Bar graduation | ungraded | Width at bass end | 31" |
| Resonators | Aluminum | Width at treble end | 12" |
| Resonator shape | straight edge | Mallets | MUS117, pair included |
| Resonator finish | silver powder coating | Shallow drop covers | included |
| Frame style | folding aluminum legs | Weight | 100 lbs. (45.36 kg) |
Questions frequently asked
What range does the Musser M31 Windsor II Kelon offer?
The keyboard spans 4.0 octaves, from C3 to C7. The standard tuning is set at A = 442 Hz. Other tunings are available.
What sound do the Kelon bars produce?
The Kelon bars deliver a clear and consistent tone with a sharp attack. Their unscaled profile provides a uniform feel under the mallets across the entire range.
Is the M31 marimba easy to transport?
Thanks to its folding aluminum legs, the frame facilitates transportation and storage. The instrument weighs 45.36 kg and measures 61.5 inches in length.
What playing height is provided on this marimba?
The frame height is adjustable to 5 positions, ranging from 32 to 36.5 inches.
What accessories are included with the Windsor II?
A pair of MUS117 mallets and shallow drop covers are supplied.



