Used Roland V-Bass (GK-2B Divided Pickup not included) for sale for the low price of $350.00:

Imagine a bass guitar processing system which can accurately model the world´s most popular basses—everything from classic electrics to upright acoustic bass, fretless bass and more—and combine them with the sounds of the world´s greatest bass amplifiers and polyphonic effects. That´s the power of the Roland V-Bass, a floor-based processor which pairs breakthrough COSM® Bass technology and a new GK-2B Divided Pickup for Bass, taking bass guitar into bold new sonic dimensions.
* Bass processing/modeling system which recreates a variety of bass, pickup, amp, speaker cabinet, mic and effects combinations

* COSM Bass technology models classic electric, acoustic, fretless and custom user-created basses using a standard bass guitar with GK-2B Divided Pickup for Bass*

* Instant access to popular solid state and tube amp models, speaker cabinets, plus original amp models

* Unsurpassed bass effects include modeled wah, modeled overdrive/distortion, compression, delay, chorus, reverb and more

* Incredible synth bass sounds, polyphonic effects, wild sound effects and more

* Extremely intuitive operation w/ helpful operational graphics and icons

* Onboard expression pedal for realtime parameter control

* 1/4" bass input jack for direct access to amp modeling and non-polyphonic effects

* 4-string, 5-string and 6-string Select function for optimal results; 100 Preset and 100 User patches