Maybe you are a active subwoofer purchasing manager, who are looking for high quality active subwoofer, and FDB are a professional manufacturer & supplier that can meet your needs. Not only active subwoofer we produced have certificated the international industry standard, but we can also meet your customization needs. We provide online, timely service and you can get professional guidance on active subwoofer. Don't hesitate to get in touch with us if you are interested in active subwoofer, we won't let you down.