KA Series Speaker Cases Upgrade: Penn Elcom Latches!
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KA Series Speaker Cases Upgrade: Penn Elcom Latches!

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Update time : 2025-11-05 10:05:00

Aviation cases are suitable for a variety of professional settings, such as sound equipment, stage equipment, and recording studio equipment, ensuring the safety of the equipment during transportation and storage. Sinbosen has upgraded the key fittings of the KA series (KA208, KA210, KA212, KA18, KA28 for V1.0/V2.0) aviation cases in terms of quality.

⇒ Import latches brand: Penn Elcom Latches from the United States. https://www.penn-elcom.com/us/about-us
⇒ 3.5-inch Euro-style wheels are used.
⇒ Thicker aluminum plates are used.
⇒ Plywood thickness: 9mm for line arrays, 12mm for subwoofers.
⇒ The thickness of the plywood at the bottom of the aviation case is 15mm.

Ⅰ.Top-tier Import Locks, Safe and Reliable

This aviation case features the Penn Elcom Latches from the United States. As a globally leading lock brand, Penn Elcom has over 50 years of professional experience, and its products are widely used in professional audio, video, and many other fields. Penn Elcom Latches provide the best security and protection for precision equipment, allowing you to have peace of mind during transportation or storage. Users need not worry about the safety of their equipment. These latches are made of wear-resistant materials, sturdy and durable enough to withstand rough handling, impacts, scratches, and various other accidental situations.

Features of Penn Elcom's Butterfly Latch

1.High-Quality Materials and Durability

Materials: Made from 1.2mm thick steel, the surface is treated with PennBrite zinc coating, which offers excellent corrosion and wear resistance.
Durability: Designed to withstand rough handling and frequent use, it can resist impacts, scratches, and other accidental situations.

2.Automatic Positioning System

Patent Technology: The MOL series butterfly latch features a patented automatic positioning system that can automatically adjust its position to ensure a tight fit. This automatic positioning system makes the opening and closing of the latch easier, without the need for additional tools.

3.Easy Installation and Maintenance

Easy Installation: The installation process of the butterfly latch is simple and usually only requires standard tools.
Low Maintenance: Due to its robust design and high-quality materials, it requires minimal maintenance and has a long service life.

4.Global Trust and Industry Standard 

Industry Recognition: Penn Elcom's butterfly latches are widely trusted by major brands and touring professionals around the world and have become a standard configuration in the industry.

 

II. Stable Euro-style Wheel Design for Easy Mobility

The aviation case is equipped with 3.5-inch Euro-style wheels, which are designed with full consideration of mobility and stability. The 3.5-inch wheel diameter ensures sufficient load-bearing capacity while easily handling various types of flooring, whether it be smooth floors or slightly uneven surfaces, allowing the case to move smoothly. The Euro-style wheels have a well-designed structure, offering excellent wear resistance and pressure resistance, capable of withstanding the weight of the aviation case and its internal equipment. They will not be damaged or deformed even after long-term use. Additionally, the Euro-style wheels have flexible steering, enabling users to easily move the aviation case to the desired location, greatly improving efficiency and making equipment transportation much more effortless.

 

Comparison Item

Euro-style Silent Wheels

Ordinary Wheels

Structure

Outer rubber layer, inner metal layer, with bearings in between, complex design

Simple structure, possibly made of a single material

Noise Control

Special materials and design effectively reduce rolling noise, suitable for quiet environments

Higher noise levels, no specific noise reduction measures, may interfere with audio effects

Rolling Resistance

Low rolling resistance, easy to move, reduces handling fatigue

Higher rolling resistance, requires more effort to move

Applicable Scenarios

Transport of sound equipment, recording studios, live performance venues, etc., where quietness is highly required

General transportation scenarios, environments insensitive to noise

Performance

Good wear resistance and impact resistance, suitable for protecting expensive sound equipment

Average performance, may be less durable, but lower cost

Impact on Audio Effects

Virtually no noise interference, ensures the best performance of sound equipment

May generate additional noise, affecting audio effects and recording quality

Maintenance Requirements

Low maintenance requirements, strong durability, reduces replacement frequency

May require more frequent maintenance and replacement

Cost

Higher cost, but high cost-effectiveness in the long run

Lower cost, suitable for limited budgets

 

III. Robust and Durable Thick Aluminum Panels with Superior Protection

The main body of the aviation case is constructed from thickened aluminum panels, which are not only of high strength and good toughness but also possess excellent corrosion resistance. These thickened aluminum panels can effectively withstand external impacts and pressures, ensuring the structural integrity of the aviation case even in harsh transportation conditions. Compared to ordinary materials, the thickened aluminum panels offer superior protective performance, providing better protection for the equipment inside the case against accidental damage from collisions and compressions. Additionally, the lightweight nature of aluminum panels ensures that the aviation case remains easy to carry and transport without adding excessive weight, while maintaining its robustness.
 

IV. Refined Plywood Design for Meticulous Equipment Protection

The internal plywood design of the aviation case is extremely refined, with thicknesses of 9mm for line array equipment and 12mm for subwoofers. This differentiated thickness design takes into account the specific fixing requirements of different types of equipment, providing stable support and protection for various devices. The 9mm-thick plywood is suitable for line array equipment, ensuring that it does not shake or shift during transportation, thus preventing damage caused by equipment collisions. The 12mm-thick plywood is specifically designed for large equipment such as subwoofers, with its higher strength and stability better able to support the weight of the subwoofers and provide more reliable fixation. Moreover, the material and manufacturing process of the plywood have been carefully selected and treated, with a smooth surface that will not scratch or wear the equipment, further enhancing the protective effect on the devices.


V. Reinforcement of the Bottom Plywood for Enhanced Stability

The thickness of the bottom plywood of the aviation case reaches 15mm, which further enhances the overall stability and load-bearing capacity of the aviation case. The 15mm-thick plywood has good strength and toughness, effectively distributing the weight of the aviation case and its internal equipment, making the case more stable during placement and movement. The reinforcement of the bottom plywood not only extends the service life of the aviation case but also provides a more reliable foundation for equipment storage and transportation. During transportation, even if there are bumps or vibrations, the bottom plywood can effectively absorb the impact force, reducing the impact on the equipment inside the case and ensuring the safety and integrity of the equipment.
 


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