Vidsonix "BASS INHIBITOR" hi-pass bass filter crossover for car audio.  Takes out the low-end to protect your woofer, midrange, or tweeter system and correctly crosses them over to your subwoofer.  Capacitor filter is 300Hz at 4 ohms or 150Hz at 8 ohms.  Cap value 120uF, 100V.  Can find in most local car audio shops, for a higher price.  [THIS AUCTION IS FOR 5PCS] 12" total length and female round terminal ends.  Fully jacketed.