Hi. I entered bartolini site today and found these new pickups. Anyone know about them? How should they sound on J Bass compared do 9s or 9j models??? Below I quoted the site: Classic Bass (CB) Pickups "Classic Bass" CB series bass pickups are passive designs featuring an extended and more resonant frequency range. They have far more "air" and definition at the top without sacrificing lows and low mids. They are cast in epoxy to remove unwanted feedback and microphonics. They are available as dual coil humbuckers in the wider soapbar shapes and, as single coils or as in-line hum cancelling dual coils in the narrower shapes. CNC machined blades on all of the CB series bass pickups allow them to cover wide ranges of string widths on medium curvature fingerboards with excellent string balance.U.S List prices are shown on these pages until our new catalog is finished.