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 provide end-to-end customization services tailored to your branding requirements, such as screen-printed logos, color matching, material alternatives, and custom tooling for unique structural designs. To ensure accurate proposals, kindly share detailed specifications, target quantities.