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JBL SDEC-4500 $7000 retail SDEC-4500P Highlights 12-channel Input, 4-channel output, over 500-band parametric EQ, bass management with 16 high pass filters and 4 low pass filters, 8 phase filters, bass/treble/thx re-eq circuit, speaker drive pre-EQ, screen and speaker cloth pre-EQ correction Speaker time delay correction for all 20 outputs Patented Sound Field Management (SFM) when used with JBL Synthesis ARCOS calibration system Patented Auto Curve Sum for Subwoofer to Main speaker optimization when used with JBL Synthesis ARCOS calibration system Active 2-way (x3 channels) crossover for bi-amplification of Left-Center-Right speakers with pre and post crossover drive shaping Learn More

Krell KBX custom for Wilson Whow subwoofer. Learn More