Hitachi LP-WU9750B

The latest Hitachi LP-WU9750B projector is a 1-Chip DLP project. Amd it is the first Hitachi projector using laser phosphor light source. It supports high resolution WUXGA that covering Full HD and 3D viewing. Suitable for classrooms and auditorium.

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Opticis HDCX-100

The new HDMI HD-BaseT extender, HDCX-100 has one CAT5e or CAT6 cable connection and is designed compact enough to be fitted in to various installation environment.

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Visionary Solutions E4000 & D4000

Visionary Solutions 4K UHD over IP cinema quality, ultra-low latency, encoder and decoder bypass the constraints of traditional switch matrix distribution systems by harnessing the flexibility and scalability of converged IP networks.

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CAH Professional Sound Company

- History

CAH Professional Sound Co., Ltd is one of the leading companies in the audiovisual industry based in Hong Kong.

Since its inception 1985, CAH has established itself as a major distributor for many well-known audiovisual brands, products and technology; becoming a major partner for many international manufacturers looking to expand across APAC and the Greater China region. Throughout the years, CAH has developed a strong portfolio of businesses including distribution, pro AV solutions, audio engineering and maintenance support. We pride ourselves in providing expert advice to our customers on audiovisual solutions, ranging from a small conference room system to a large scale shopping mall PA system. Regardless of project size, our team strives to fulfill our customer’s needs through innovative ideas, professional audio knowledge and workable designs.

is a registered trademark owned by CAH Audio Products, Inc., a wholly owned subsidiary company of CAH Professional Sound Co. Since 1990, the brand has focused on manufacturing professional microphones and audio peripherals. With 20+ years of experience in professional audio production, CAH Audio Products, Inc. is now renowned for high-quality audio products and innovative technology. CAH is passionate in expanding and developing this platform to expand in the Asia market.

In order to broaden our scope of operation, CAH has joined forces with TICO Digital Group, becoming one of the group’s core members since 2008. CAH plays a crucial role in connecting overseas manufacturers with TICO’s strong operational network in China. Leveraging our industry experience and unique position as a bridge between China and overseas, we are able to add value by providing market analysis and strategic business planning; in order to create partnership opportunities that offer a win-win proposition.

In 2012, CAH expanded its portfolio of services towards providing complete audiovisual solutions for our clients. With our extensive distribution network of products, experience in system design and strong working relationships with local contractors, we are in an advantageous position to provide the best audiovisual solution for our clients.

CAH – your ultimate solutions provider

- Mission Statement

We strive be the ultimate solutions provider for our clients through industry leading innovation and technology.

Commitment – Commitment is standing behind our work and offering no excuses for mistakes. We do right by our clients simply because it is what we do.
Ambition – Ambition is our passion in becoming the industry leading audiovisual provider. We strive for the best in our work and bring out the best in those who we work with.
Humbleness – We are industry professionals yet students of a trade that is constantly evolving. Humbleness allows us absorb new information and industry knowledge from our projects, partners and manufacturers, so that we can pass on this information to our clients.
Service – Service is about meeting the real needs of our clients. The quality we deliver is what sets us apart and provide long term value to those we work with. We anticipate the needs of our clients and help them become successful in their own endeavor.
Teamwork – CAH teamwork creates a synergy, allowing us to accomplish more together than the sum of our individual efforts.

- ISO9001 : 2008 Certified (PDF)

After a year of extensive preparation and dedication, CAH was awarded the ISO9001:2008 Quality Management Systems certification by the International Organization for Standardization, on February of 2008. The certification was issued by BSI (British Standards Institution), the well recognized certifying body for the International Organization for Standardization. The achievement of this highly prestigious designation marks the excellence of our company's overall operation and customer service; adhering to the strict criteria set forth by ISO's standard of quality management systems.

- Human Resources and Management

Our company's management team consists of seasoned professionals with over 15 years of experience in the professional audio industry. Coupled with our team of highly skilled engineers, we offer exceptional and professional services to our global clients. In addition, our company employs the latest and most advanced operations and technology that conform to the ISO9001:2008 standards and ensures seamless organization and planning, implementation, quality control and testing that exceeds the most stringent administrative requirements.

- Advanced Technology

Besides having highly skilled engineers and technical experts, our company employs the state-of-the-art EASE 4.1 system design and acoustic analysis program, AUTOCAD and SHUTTLE CAD as drafting tools that ensure precision and success in our systematic approach to designs.

-Customers are NO. 1!

Our professional staffs are here to offer our clients with the most comprehensive services: Free consultation, system design and EASE software analysis.

The most comprehensive one-stop services
The most advanced and cost effective technology
The best after sales services

- Our Targeted Customers

Conference & Exhibition Center
Theater & Auditorium
Multi-purpose Hall
Entertainment Center
Private Club
Night Club & Karaoke
Shopping Mall
Corporate Boardroom
School & University
Multi-media Lecture Hall
TV/Radio Broadcast Station
Recording Studio
Post-Production Facility

January 2012

We would like to take this opportunity to present to you, our newest CAH Professional Sound Company Website. With the new year upon us, we are aiming for a year of revolutionary change, with many new products and projects lined up. Starting with our website, we have taken the inputs from our clients, distributors and manufacturers, and created a website that is streamlined for efficiency. As of this stage the website is still in development, and over the course of the month we will continue to update new content into the website. We apologize that the Chinese version of the site is not ready but we will be working on translating the site back to Chinese once it is completed.


December 2011

CAH Professional Sound Company wishes you a Merry Christmas and a Happy New Year!

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Company News


  • CAH is now an authorized distributor of Bose Professional

    CAH is glad to announce that we are now the authorized distributor of Bose® Professional in Hong Kong and Macau region.

    About Bose
    For more than 40 years, Bose Professional has developed innovative loudspeakers, electronics and software to meet the needs of demanding professional audio applications. Bose Professional provide substantial support for the distribution network, including product technical information, system design support and after-sale support. Bose sound is found throughout the world in performing arts centers, theaters, houses of worship, stadiums, restaurants, retail stores, corporate buildings and hospitality establishments. For more information, please visit Bose® Professional in our website.
  • Infocomm Orlando 2017

    Beyerdynamic,Ecler,Hitachi,Opticis,Renkus-Heinz, TC Group, Visionary Solutions and Williams Sound will be attend InfoComm Orlando 2017. It will be held on 14-16 June 2017 in Orlando.
    InfoComm 2017 is the largest event for professional AV in the world, with over 980 exhibitors and more than 38,000 attendees from 110+ countries.
    Beyerdynamic #5775
    ECLER #5175
    Hitachi #3429
    Opticis #1348
    Renkus-Heinz #6845, W224E
    Tannoy, Lab.gruppen #6945
    Visionary Solution #5343
    Williams Sound #3320
    See you in Orlando InfoComm! 



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Contact us

CAH Professional Sound Company Limited

Unit E-F, 21F, Luk Hop Ind. Bldg.,
8 Luk Hop Street, San Po Kong
Kowloon, Hong Kong

Telephone: (+852) 2766-3818
Fax: (+852) 2363-0363