Hangzhou Grandix Electronics CO.,LTD

A professional speaker manufacture

Granvoz focuses on manufacturing, developing, and exporting speakers. In 20 years, we have been aiming at making the best speaker units. On manufacturing, Granvoz owns a 3.5-acre factory locates in Hangzhou, China. Thus, we are confident taking care of every valuable client and order. We offer some of the most cost-effective speaker products such as the midranges, subwoofers, bullet tweeters, and coaxial speakers.

Why Choose Us

We have a wide range of car speakers for you to choose including midrange speakers, tweeters, drivers, subwoofers, and coaxial speakers, etc. In addition, we also manufacture ceiling speakers, megaphones, and wall speakers.

Automatic assemble line

More efficient productivity. Assure the integration of products.
Low-MOQ OEM service

Light OEM service for low minimum order quantity. 200pc-order for logo on the dust cap, paper cone, basket, magnet. 500pc-order for OEM boxes
Sound testing

Tested & supported by mechanical and electrical specification. Provide Thiele & small parameters.
SKD service

Granvoz also provides spare parts export service. Clients can purchase speaker soft/hardware directly to lower the cost.

OEM/ODM Service

We have always been committed to designing products and solutions that improve people's quality of life.

OEM Service

We provide high-quality OEM services, working closely with clients to manufacture speakers that meet their specific design and performance requirements. Our experienced team ensures seamless integration with your brand, delivering custom products on time and within budget.

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ODM Service

Our ODM services offer a comprehensive solution, from initial concept to final product. We assist in designing unique speaker models based on your needs, and manage the entire production process. With our expertise, we bring your ideas to life with innovative and reliable products.