Guide Company Presentation at the 2023 China Entertainment Equipment Technology Association Guangzhou Office Member Conference

Distinguished leaders, teachers, and friends,

Good evening, everyone! I am Tong Guixi from Guangzhou Guide Electronics, you can call me A-Xi.

First of all, I would like to appreciate the association for their meticulous organization, thank all the seniors for their continuous support, and thank all the friends for their support. I am honored to be here today to gather with you and take this opportunity to report on our company's stage microphone hoisting system.

The stage microphone hoisting system, is commonly known as the "hanging wind system." Experts in the professional stage sound system know that during “the Renaissance” period in our country, which was the peak stage of the Grand Theater construction, the National Center for the Performing Arts (NCPA) and Hangzhou Grand Theater were constructed around the same time. The Hangzhou Grand Theater was completed and put into use in 2005, while the NCPA was completed and put into use in 2007. The Hangzhou Grand Theater did not use the hanging wind system. When it was put into use, it was found that for live amplification or recording, the orchestra did not agree to set up microphones on-site, making it very difficult to carry out live amplification and recording work. Especially the live amplification and recording effects of small wind and string sections were very poor. However, the NCPA had already designed and installed the hanging wind system from the beginning. The hanging wind system of the NCPA was purchased from Japan. At that time, hanging wind systems were only available as imports and were very expensive. The price of a set of hanging wind systems was equivalent to today's BMW X3. If each instrument section is equipped with 1-2 sets, a grand theater would need more than 10 sets. This investment is beyond the capacity of ordinary theaters, which gave us the idea to develop similar products.

Once we had the idea, we started to take action. We immediately launched a project to research and develop the stage microphone hoisting system, organizing technical personnel for development. At that time, there were very few such equipment in the country, and no related data. We relied solely on our pioneering spirit and firm belief, proposing schemes, demonstrating, rejecting, re-proposing, demonstrating, prototyping, testing, re-prototyping, and re-testing. During this period, our structural design and software development were carried out simultaneously, and after more than two years, our efforts finally paid off, and we produced the finished product. Our stage microphone hoisting system series mainly includes two categories: three-point hoist and single-point hoist.

At that time, the Guangzhou Opera House also planned to use the hanging wind system. After the demonstration by many expert teachers, our stage microphone hoisting system fully met the various index requirements of the Guangzhou Opera House's stage microphone design and was even superior to the Japanese hanging wind system. Therefore, it was decided to use our stage microphone hoisting system (three-point hoist and single-point hoist). In actual application, the three-point hoist’s three hoisting devices are evenly installed on the steel structures at the top of the stage, approximately 20 meters apart. The audio cables of each device pass through the decorative ceiling and connect to the microphone stand tray in the orchestra pit area. Six microphones are installed on the microphone stand tray. According to the preset route, controlled by the main control host, the microphone stand tray is operated within a certain area from the stage to the orchestra pit area to the auditorium, collecting the rich sounds of different instruments through vertical lifting, horizontal movement, and different angle adjustments of the microphones. During the three-point hoist sound pickup process, the single-point hoist located in the auditorium also operates above the audience, capturing the audience's sound. The sounds collected by the three-point hoist and the single-point hoist are sent to the backstage for tuning and mixing to achieve satisfactory amplification effects. This is the application example of our microphone hoisting system in the Guangzhou Opera House.

The successful application of our product has greatly strengthened our determination to continue improving and investing in further enhancements. In recent years, with the development of the cultural market, there has been a growing demand for stage microphone hoisting systems in various institutions, small theaters, and auditoriums. We have developed mini versions of our single-point and three-point suspension systems to cater to smaller venues such as schools, colleges, and various halls. Additionally, we have introduced simplified and easy-to-use hoisting devices, which are suitable for venues like schools, conference rooms, and lecture halls.

Currently, our stage microphone hoisting systems include a range of products: from the high-end version with a 28-meter reach, to the mini version with a 12-meter reach, the simplified version with an 8-meter reach, down to the easy-to-use version with a 3-meter reach, as well as dual-line directional microphone hoisting devices. These products not only differ in reach but also offer various functions to meet different audio capture needs.

Our three-point hoisting systems come in both standard 28-meter and mini 20-meter configurations, allowing for selection based on stage size.

We also provide customization services, including a sound suspension device that plays audio while adjusting playback quality in the background for optimal performance.

Finally, I would like to express my gratitude to all the leaders, experts, teachers, and friends for patiently listening to my presentation. Looking forward, we welcome your suggestions for further improving our products to enrich the development of our performing arts industry.

Wishing our country's performing arts industry prosperity and success! May our performing arts association continue to grow stronger and better!

Thank you all! Thank you!