Any information about this bass would be apreciated. Very Thanks.  
Alembic Essence 4 serial 96K9744 USA

Hi Aldo; welcome to the board!  I've responded to your email.

Hi Aldo,
 
Here's the details from the instrument file:
 
KLB4 Essence 4-string bass
 
top: Walnut
accent: Maple pinstripe
body: Mahogany
neck: 3-piece Maple
scale: 34 long
fingerboard: Ebony
pickups: MXY
controls: Essence volume, pan, filter, mono output
birthday: March 5, 1996
originally made for: Guitar Place, Brazil
 
That's it!