Tymphany Tymphany is a company focused on the acoustics, material science, and design of audio solutions. | ![]() Sound United Sound United is an audio equipment maker that owns Polk Audio and Definitive Technology speaker brands. | |
Founding Date | Founding Date 2004 | Founding Date 2014 |
Type | Type Private | Type Subsidiary |
Tags | ||
Locations | Locations Huizhou, CN HQ Kopřivnice, CZ Helsinki, FI Hong Kong, HK Taipei, TW Bridgend, GB San Rafael, US see more | |
Employees | Employees 800 | Employees 2151% increase |

Sound United is an audio equipment maker that owns Polk Audio and Definitive Technology speaker brands.
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