Capacitors
In a passive crossover the capacitor sets the high-pass slope and takes the full signal voltage. Metallised polypropylene (MKP) is the.
Crossover
Component families
Crossover and cabinet: the two areas where a mistake is fixed without buying another driver.
Inductors
The inductor sets the low-pass slope. Its main flaw is not inductance but series resistance: every ohm placed in front of an 8-ohm woofer.
Crossover
Resistors
Resistors handle tweeter attenuation and impedance-correction networks. MOX (metal oxide) types are non-inductive, unlike classic wirewound.
Crossover
Connectors
Connectors do not improve the sound; they avoid degrading it. An oxidised or loose contact introduces a variable resistance and sometimes.
Assembly
Ports
The port tunes the enclosure volume to the intended frequency. Its area and length are chosen together: too narrow a tube generates air.
Cabinet
Damping material
Damping material absorbs standing waves inside the cabinet. Without it those resonances escape through the cone and the port as colouration.
Cabinet