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About the B5
The First Watt B5 is a high-end stereo active crossover featuring adjustable frequencies, slopes, and levels, specifically optimized for open baffle speakers with full-range drivers and woofers. It provides smooth -12dB/octave low and high pass filtering typically between 100-550 Hz, with features like adjustable low-bass boost, high-mid notch, and continuous low-frequency gain adjustment (loudness). Based on JFET filters with no feedback, it offers purely analog signal path for bi-amping applications. Low pass filter is 2-pole (12 dB/octave) adjustable from 20-300 Hz in 20 Hz steps; high pass filter offers 1 or 2 poles (6 or 12 dB/octave). All RCA inputs/outputs for stereo high pass and low pass. It is no longer manufactured by First Watt, with used units available around $850.
Specifications
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