Paradigm X-30 High Pass Subwoofer Control Unit

DescriptionThe X-30 employs high-quality active circuitry. The high-pass section topology is third-order active Sallen-Key, implementing a Butterworth transfer function. Butterworth is claimed to give the best compromise between attenuation rate and group delay. The X-30 uses 1% metal-film resistors and 5% metal/polyester-film capacitors. The low-pass section also uses a third-order, 18dB/octave slope, and it has two mono RCA subwoofer outputs that can be run independently or together.Please note that the X-30 is a line-level device, made to work in conjunction with a stereo preamplifier?s main outputs. It will also work with receivers or integrated amplifiers that have variable preamp line outputs -- not tape outputs. In the case where you have anThis is a very flexible subwoofer crossover for diyers making their own subs, or for those that need to add some extra tuning to their limited plate amp crossovers. It has 4 different phase adjustments, a lowpass filter that goes down to 35hz, and 3 different highpass filters for your main/monitor speakers( you can select one of three fixed crossover frequencies: 50Hz, 80Hz, or 120Hz)All in/outputs are gold https://offerup.com/redirect/?o=cGxhdGVkLklu mint condition. Cost $300 new.Asking $75