2-Way Passive Speaker Crossover

Inductors (Copper Coils): These act as low-pass filters by allowing low frequencies to pass while blocking high frequencies. The large coil handles the bass signal. Capacitors (Red Cylinders): Labeled JIE DUO DENG New Hi-End 1.5μF 400V, these act as high-pass filters that block low frequencies and allow high frequencies to reach the tweeter. Resistors (White Blocks): Labeled 30W12ΩJ and 30W20ΩJ, these ceramic resistors are used to attenuate (reduce) the volume of the tweeter so its output level matches the woofer's.