Box 18 inch

🔥 18-inch bass reflex subwoofer box design with 45Hz tuning – suitable for outdoor use, field sound, or daily SPL. This box is designed to be efficient, long-range, and you can build it yourself from just one sheet of plywood. L-shaped port layout with a length of 80 cm, precise tuning at 45 Hz, and a rear cavity for extra pressure. 📐 External dimensions: 60 x 60 x 70 cm 🔧 Port: 56.4 x 11 cm – total length 80 cm 🎯 Tuning: 45 Hz 💥 Subwoofer: 18 inch – RMS up to 1000W #soundsystem #audio #speaker #bassnendang #speakerbox #amplifier #fieldaudio #miniature #audiotechnology #audiolearning