Amplifier 3in1 HQsing PRO-4500 Open Box

This represents something truly exceptional – a triple-function device that outshines all our prior offerings. Its robust wattage output allows you to savor peak volume, especially when matched with passive speakers. The sophisticated design, complemented by a user-friendly touchscreen interface, grants you seamless control over the device.

WHY BUYING FROM HQsing:

• 30-day Risk Free Trial (Đổi trả miễn phí trong 30 ngày)
• 6 Month Product Warranty (bảo hành 1 đổi 1 trong 6 tháng)
• FREE 24/7 Lifetime customer service as long as item still working (Hỗ trợ kỹ thuật 24/7 trọn đời sản phẩm).
• Free shipping USA & Vietnam 

CONTACT US, WE OFFER 24/7 CUSTOMER SERVICE!!!

Setup

1. When you receive the Open Box unit, inspect it before setup.
2. Place the PRO-4500 in a well-ventilated spot and power off before wiring.
3. Connect your music source to the unit, then connect the speaker outputs to passive speakers, observing correct polarity.

Use

1. Lower the master volume, turn on the source first, then the PRO-4500.
2. Use the touchscreen to select the music source and adjust volume and effects.
3. Raise the volume slowly; the unit is powerful, so avoid sudden increases to protect the speakers.
4. If the mic feeds back, lower the mic volume and point the mic away from the speaker face.

Care

• Wipe the touchscreen with a soft, dry cloth; don't use sharp objects.
• Keep the unit in a dry place away from dust and heat sources.
• Unplug when not in use for long periods.