SPL CROSSOVER MK2 Active Analog 2-Way Crossover for Pro Audio & Hi-Fi Applications (Black)The analog crossover in its second generation The second generation of the SPL Crossover features even more crossover frequencies and an extended range of functions making it the best and most versatile SPL crossover ever. The perfect integration of bass loudspeakers or subwoofers can be difficult. There are almost only digital crossovers for this purpose. But who wants to convert back to digital in an analog high end playback chain? Our analog