01Who we are
SONTRA is a building-audio brand with its own factory in Guangzhou. We focus on three lines: background music and public address, conference audio and AV, and ballroom and event sound. Our export experience comes from broadcast and audio equipment; this site is dedicated to building audio.
02How we specify
We specify by function and by interface, using our own product families. A project may use one family for the PA head end, another for the conference microphones and another for the ballroom array. The design language and documentation stay consistent, and the whole chain can be quoted as one package.
03How we supply
Equipment is manufactured in our own factory and supplied through a documented order process: sample approval, production slot, inspection, export packing and document pack. Because production is in-house, we can confirm the platform, the label and the lead time directly.
04How we support
The local licensed contractor owns installation and statutory acceptance. We support the design, the submittal, the interface coordination and the commissioning checklist, and we stay available after the shipment for configuration and fault-finding questions.