Furman PL-8C The Classic Series from Furman brings together superior protection and outstanding performance in a sturdy, rack-mountable design. The Classic Series features Furman’s revolutionary Series Multi-Stage Protection (SMP), Linear Filtering Technology (LiFT), and Extreme Voltage Shutdown (EVS). Together, these technologies comprise what is, without question, one of the world's most advanced and comprehensive transient voltage surge supressors. Applications INSTRUMENT RIGS You've got a rack for your effects, preamps, tuner...You're going to plug that into the wall? One big spike and your rig is up in smoke. Furman's advanced Series Multi-Stage Protection defends your gear from the spikes and surges that are so common at gigs and practice spots. With Furman's advanced Linear Filtering Technology, you'll get a quieter tone without pops, crackles, and the local radio station coming out of your amp.