Sound film is one of the indispensable core components in modern sound equipment. BOSE, JBL, INFINITY, Alpine and other well-known brands have widely adopted the diaphragm sound membrane technology to provide excellent sound quality and sound effects. This paper will reveal the characteristics of these several sound membranes, and help readers to better understand their differences and advantages.

 The BOSE sound membrane:
BOSE as a world famous sound brand, its sound film technology has been in the leading position in the industry. The sound membrane of BOSE is made of high intensity and low distortion material, which has excellent frequency response and sound quality performance. Its diaphragm material is elastic and providing clear, delicate sound details, allowing the audience to listen deeply to the details and emotional expression of the music.

 JBL film:
JBL is another audio brand well loved by consumers, and its sound film technology is also a leader in the industry. JBL's sound film is often made of high rigidity and low weight materials, which can quickly respond to sound signals and provide excellent audio performance. Due to the advanced diaphragm structure design, JBL sound membrane can perform very well in high, middle and bass, with high balance of sound quality.

 INFINITY Sound membrane:
INFINITY The brand is committed to bringing excellent music enjoyment to users, and its sound film is no exception. INFINITY Sound film is usually made of high stiffness and high internal resistance to achieve better audio energy transfer and control. This sound film can provide a lower harmonic distortion and a higher dynamic range, bringing in a more realistic, delicate audio performance.

 Alpine Sound membrane:
Alpine As a brand focusing on car audio, its sound film technology is also recognized. Alpine The sound film is usually made of high elasticity and high durability materials to meet the challenges of the interior environment. This sound film can produce a clear, bright sound in a noisy environment, providing a stunning audio experience.

 In conclusion, BOSE, JBL, INFINITY and Alpine brands all have their own characteristics in terms of diaphragm sound membrane. BOSE sound film focuses on exquisite sound performance, JBL sound film focuses on audio expression, INFINITY sound film pursues higher audio control ability, while Alpine sound film focuses on adapting to the vehicle environment. These rubber diaphragm bonding process are more and more in pursuit of environmental protection and quality. ENIENT Innovative water-based diaphragm adhesive technology provides a new high performance environmental protection option for sound diaphragm bonding.