
OEM 15 Inches Subwoofer Car Speakers 4000W Car Audio. OEM/ODM Services: Flexible customization including from samples, designs, and full customization options. 1-Year Warranty: Comprehensive 1-year warranty coverage for all mechanical defects. High Power Output: 4000W power rating for subwoofer car speakers with full range sound frequency. Professional Team: Years of cooperation experience with world-famous brands and fluent client communication. Strict Quality Control: 100% inspection with a very accurate 1 per mille failure rate. ISO9001 Certified: Manufacturer holds ISO9001:2000 system certification for quality assurance. No MOQ Requirement: Sample orders are welcome with no minimum order quantity restrictions. Fast Lead Time: Short lead times available with fast development speed for urgent orders.