Q&A

Q: Are you trading company or factory?
A: We are factory,was established in 2013.

Q: Do you accept OEM ?
A: Yes welcome.Kindly send us your request!

Q: Where is factory located?
A: Our factory is located at Guangzhou city, Guangdong, China.

Q: What's your payment term?
A: For the sample order, we require full payment. For regular orders, we support the payment term of T/T, with a 30% deposit in advance and the balance of 70% to be paid before shipment.

Q: Can you produce according to customer's design?
A: Yes, we are professional manufacturer, your logo or company name can be printed on your ordered products or packing box, OEM is welcome!

Q：I'm not sure how to purchase the equipment. Can you provide a solution based on our needs?

A: Sure. For consultation on solutions, please contact: (TEL/WhatsApp) +86 13711293648. We will customize a product solution for you.

Q：How long is the product under warranty?

A: Except for man-made damage or irresistible disasters, the product comes with a one-year warranty and lifetime maintenance.

Q：How are ceiling speakers distributed?

A：Generally, the speakers are placed at an interval of 8 meters.

Q：What's the problem when the public-address power amplifier goes into protection mode after working for a very short time or when the volume is slightly increased?

A：There are three reasons that can cause the public-address power amplifier to go into protection mode:
1. The working load is greater than the rated output load of the power amplifier.
2. It is caused by a short-circuit in the broadcast line.
3. There is a problem with the power amplifier itself. The following methods can be used for trouble shooting:
a，Check the working load of the speaker. In the design of a broadcast project, the working load of the speaker should generally be 70% - 80% of the rated output power of the power amplifier. If the working load of the speaker is greater than this standard, it is necessary to replace the power amplifier with a more powerful one or reduce the number of speakers.
b， Remove all the loads of the power amplifier and connect a normally-working speaker. Check whether the power amplifier protection phenomenon occurs. If the power amplifier protection phenomenon still continues, it indicates a fault in the power amplifier itself, and the power amplifier needs to be replaced. If the protection phenomenon does not occur, it means that it is caused by a short-circuit in the broadcast line, and the broadcast line needs to be inspected and repaired.

Q：Is there any problem if the wiring of the speakers is not uniform?
A：The polarity of the speaker terminals must be the same as that of the output terminals of the power amplifier. If the connection methods are not uniform, it may cause the speaker to burn out the transformer and even affect the power amplifier.

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