4 Inch (102 mm) 8 Ohm, Carbon Fiber Midbass Woofer

This 4 inch midbass woofer is perfect for a wide variety of high-end audio systems, whether a 2-way bookshelf speaker, a multi-driver floor standing speaker, or a professional line array. A rigid but lightweight carbon fiber cone and an edge-wound copper voice coil combine for excellent transient response and an extended and controlled upper roll-off. The frame is heavy-duty, aluminum die cast with venting below the flat spider and through the center of the magnet structure to avoid air turbulence and noise. This is a premium, well-crafted speaker designed to bring music to life.

• Lightweight, rigid carbon fiber cone with rubber surround
• 2.6 mm, Klippel verified minimum Xmax
• Vented, square-cast aluminum basket
• 1 inch voice coil, edge-wound copper on Kapton form
• Wide frequency range, 60 to 12kHz
• 0.9 kg, (2.1 lb) net weight

Bold North Audio products are the most accurate, engineered audio transducers available. Each design requires Klippel vibrational test analyses to verify the key parts of optimal audio performance. While we rely heavily on objective science to lead us, we understand that most of all speakers need to tell the musical truth. Our engineers, musicians, and recording studio veterans are the final judges of when a design is worthy of the Bold North Audio brand.

All Bold North Audio products are assembled in Minnesota, with parts sourced from around the world to produce the highest combination of performance, consistency, and customer value.