Speaker spider 308×101,6×7 mm / 12,13"×4"×0,28" is designed for speaker, subwoofer and woofer repair or assembly. The inner diameter 101,6 mm / 4" is suitable as a reference for a 4" voice coil.

The spider keeps the voice coil centered in the magnetic gap, controls cone movement and affects the mechanical stiffness of the moving system. A correctly selected spider helps prevent coil rubbing, misalignment and unwanted noises under power.

• Outer diameter: 308 mm / 12,13"
• Inner diameter: 101,6 mm / 4"
• Profile height: 7 mm / 0,28"
• Waves: 6
• Layers: 2 layers
• Material: Nomex PC
• Profile type: progressive profile
• Silicone coating: yes
• Feature: 7мм вверх, 4мм вниз
• Weight: 165 g

Selection tip: compare the outer diameter, inner diameter, profile height, wave count, layers and stiffness with the original spider. The wrong spider may change cone excursion, resonance frequency and final speaker behavior after repair.