Vintage Style electronics, no integrated circuits in the signal path3-band with a dual inductor based mid frequency bandInductor based high pass filterStepped frequency selectionControl range up to +/- 18 dBA wide selection of frequencies from 33Hz to 20kHzEach section can be switched off individuallyMaster Bypass switchTantalum capacitors in the signal pathCircuit board star grounding schemeGreat sound that suits most sound sources and genresA solid build quality that will last many years of no