Speaker material

1. High-quality wood such as mahogany, rosewood, peach, sandalwood and other precious hardwoods, preferably seamless whole boards, are the top materials for speaker production , but the materials are hard to find, expensive, and difficult to process, so they are often used in top-quality speakers. The second most popular ones are willow wood, jujube wood, catalpa wood, etc. The ones with heavy specific gravity and uniform wood are better. New materials are easy to deform when wet and need to be dried.

2. Medium-density fiberboard is the most commonly used board, with low cost, easy purchase of materials, and convenient processing. However, in actual production, it is found that its strength is poor, and it is prone to sound staining, hesitation, and The material is fine and soft and cannot be combined with wood screws, but can only be driven with iron nails. It may be loosened under high sound pressure and has poor rigidity, which is not conducive to the solidity of the cabinet.

3. Middle Density particleboard is also called pressed board. It has high strength, low cost and is not easy to process. Many commercial speakers, including many Japanese kit speakers, use this material. However, some people report that it is not compacted tightly and contains large air gaps. More, the sound insulation performance is poor. It is best to use special treatment to improve the sound insulation ability.

4. High-density fiberboard, particle board and plywood have high strength, good sound insulation performance, and the materials are easier to find, so they are made by amateurs with high quality The first choice material for audiophile speakers, but the cost is slightly higher and the processing is not easy, requiring special tools. Especially high-density particleboard, which is very hard and difficult to nail. Pre-drill a slightly fine hole with an electric drill before tightening the screws.

5. If the inorganic material is cast into concrete, use stone sheets (marble, concrete slabs, granite slabs, gypsum boards, etc.) with special It is formed by craftsmanship, or simply uses a heavy large clay pot as the box. It has the advantages of small sound coloration and stable sound field, and is often used by audiophiles. However, it is too heavy and it is very inconvenient to move and tune. And the box wall must be specially treated.

6. High-density polymers (polymer polymers) such as engineering plastics, polypropylene, reinforced modified epoxy resin, and thick organic glass plates adhere to modern advanced scientific and technological materials technology. Many European and American professional speakers Manufacturers use this technology to create high-end, high-quality speakers. For example, the JBL MM series speakers use high-density plastic as the cabinet. The famous JBLPROJECT K2 even uses plexiglass several inches thick to make the tweeter. It is difficult to cut off under amateur conditions. Realize.

7. Metal materials are mainly used in professional speakers and special occasions, such as stage speakers, mobile speakers, all-weather speakers for sports, all-weather mobile speakers for military... Amateurs use metal boxes because of their The body resonance frequency is high, and the sound staining is difficult to handle, so it is rarely used.

8. Paper materials are mostly used by those who are new to the burning industry and have financial constraints, and there are also some experts who use them as cabinets. And it is enhanced with special techniques, such as impregnating with epoxy resin. If it is made properly, the effect will be good.