You might get a better response if you post why you're asking

Are you interested in buying this bass? Are you seeking help because a problem has developed with this bass?

Just some handy tips

Fender Standard Jazz Bass
Artec Matrix Pedal Tuner
BBE Optostomp
Boss GEB 7
EHX NYC Big Muff
Ashdown MAG C410T-300
Torque T100BX
GAS-ing for:
Boss SYB5
Behringer Intelligate IG9
ok then. i own one and i think its the greatest. and since i havent had it for very long, i am trying to find out more about it and what other people think of it.
welcome to UG Bass. here is a great place to check-out opinions on a particular model.http://reviews.harmony-central.com/reviews/Electric+Bass/product/Jackson/C-20+Concert+Bass/10/1
Jackson is built by Fender, btw.