These systems were created specifically for those who want high load capacity and smooth installation the reasonable price and the outstanding sound are convincing the crossover filters have an optimised 6 db design the models sl 160 c and sl 240 c also feature ptc protection of the tweeter a steel chassis together with a glass fibre voice coil former ensure a high resilience the high quality diecast membrane and the highly stable dust cap are reinforced with carbon fibre do not be unsettle