Very nice custom Instrument...
Well balanced, great sounding bass.
Push-pull active-passive with 3 band EQ.
Custom made preamp with narrow and wide option:
Bass: 90hz hz narrow and wide and 50hz
Mid: 900, 600 narrow or wide and 450
Treb: 8, 6, 6 and 4 khz
[media]http://www.youtube.com/watch?v=JzCU9jhv3Mc&feature=youtu.be[/media]