High-Performance Audio: Experience superior sound with our 3-inch subwoofer speaker, designed for 15W output and 4 ohm impedance, ideal for custom audio projects Construction: Built with durable materials, this 78mm speaker delivers consistent performance, making it a reliable choice for DIY audio setups Versatile Application: Perfect for building or upgrading bookshelf speakers, this subwoofer enhances any home audio system with rich, deep bass and clear, vibrant sound Easy Installation: Features user-friendly design for quick and simple setup, allowing audio enthusiasts and DIYers to enjoy high-fidelity sound with ease Note: Due to different production batches, there may be slight variations in product appearance and printed text; these differences do not affect functionality Color: Black Material: ABS Package Contents: 2 x Audio Speaker Please note: Other items not included. Light reflection and display settings may cause slight color variation between the image and the actual item. Measurement error allowed is +/- 1-3 cm.