1, stainless steel
Foshan Zheng Gang stainless steel audio shell is not only durable, but also has metallic texture, dirt resistance and good sealing performance. Because of the good sealing, the sound quality of Bluetooth speakers will be better. Meanwhile. Stainless steel shell has a variety of surface processes and colors. Secondly, the construction period of stainless steel shell is short, unlike aluminum alloy shell, which requires a lot of time and money to open the mold.
2. Plastic
In fact, the plastic stereo is not as bad as you think, and it is not useless. The advantages of plastic shell are low price, various colors, arbitrary molding, light weight and strong plasticity, which makes it a fashion endorsement. However, the acoustics of plastic materials generally can't reach the desired sound quality, and the bass effect is weak, the sound quality is thin, and the roundness is poor. The shell of plastic acoustics is poor in texture, not resistant to dirt, and the box is thin, which can't overcome resonance.
3. Aluminum alloy
Aluminum alloy audio shell is superior to plastic shell in high-end atmosphere, with metallic texture, light weight and strong plasticity. Another powerful advantage is that it is easy to dissipate heat. However, the production of aluminum alloy shell requires a high level of production technology. Compared with the mature and stable die casting developed in decades, the quality and output stability of aluminum alloy shell are poor, and the rejection rate is high, which leads to the higher price of aluminum alloy products.
Foshan Zheng Gang Stainless Steel will answer your questions and hope to adopt them.