Harshness can also be caused when the drivers (speakers) are stressed. Insufficient power can create this problem, whether using tube or solid-state amplifiers. One remedy to try is heavy-gauge speaker cable, i.e., 4 gauge, 1600 strand copper (often marketed in raw form as power-cable).
This will generally ensure a delivery of power, and a power reserve, for demanding musical passages when the drivers are under high-stress. Installing this type of cable can eliminate the harshness found at high frequencies under most circumstances.
This will generally ensure a delivery of power, and a power reserve, for demanding musical passages when the drivers are under high-stress. Installing this type of cable can eliminate the harshness found at high frequencies under most circumstances.