Three Powersoft Quattrocanali 4804 DSP amplifiers are at the heart of the audio system installed at the COVID-19 memorial park in Ho Chi Minh City, Vietnam, where Hoàng Phú Sound has been tasked with delivering background music that serves both as a tribute to those lost during the pandemic and as an amenity for the surrounding community.
The park is home to “The Tear”, a six-metre reflective stainless-steel sculpture featuring a teardrop form with a heart-shaped void at its centre. Installed in early 2026, the monument honours both the victims of COVID-19 and the frontline workers who served during the crisis. Its stepped circular base incorporates symbolic motifs drawn from Vietnamese culture, and the site is designed to encourage quiet reflection, remembrance and community gathering.
Hoàng Phú Sound is a Ho Chi Minh City-based audio systems integrator and Powersoft distributor specialising in the design, supply and commissioning of end-to-end audio systems across hospitality, commercial and public-sector projects. The company was appointed to deliver the park’s complete audio installation and selected the Quattrocanali 4804 DSP as the amplifier platform for the site.
The project presented a specific set of demands. With the park intended for public use at all hours, the amplifiers were required to operate continuously, 24 hours a day, seven days a week, in an outdoor environment subject to the heat and humidity of Ho Chi Minh City. The scale of the site also called for long speaker cable runs, requiring a high-impedance distribution solution to minimise signal loss. A further consideration was the reliability of the local electrical supply, with the system needing to perform consistently under variable mains conditions.
Powersoft’s Power Factor Correction (PFC) technology allows the amplifier to operate stably under fluctuating mains conditions, containing current draw, reducing harmonic distortion on the supply and contributing to cooler operating temperatures.