EBS Microbass II 
http://gdavidak.rajce.idnes.cz/EBS_Microbass_II/
I've purchased this unit recently and made some tweaks with it today, so I decided to make several sound samples, especially of drive function.
Used bass is Spector 4 Euro LX, with VERY old strings and bad setup(but who cares about it

), both pickups, eq set to taste, same settings through whole recording process.
Alder fingers, variable dynamic and rhytmrate, sorry
M-Audio MobilePre soundcard, Sony Soundforge, post-processing- only normalize function.
1. Bass directly to soundcard, there is some clipping noticable- Tonepump is VERY powerful onboard preamp
http://ulozna.soulslavers.com/soubor...5528-clean.mp3 2. Spector->Microbass. No input boost, no EQ, just flat
channel A.
http://ulozna.soulslavers.com/soubor...-ebs_clean.mp3 3. The same as point 2, but
Tube Sim button engaged. Added nice smoothness to the tone, compressed some peaks, hope it is noticable.
http://ulozna.soulslavers.com/soubor...s_clean_tb.mp3 4. Channel B added. Everything is still flat, no
Edge, no
Mids tweaked, just slightly turned up the
Drive.
http://ulozna.soulslavers.com/soubor...-ebs_dist1.mp3 5. More
Drive.
http://ulozna.soulslavers.com/soubor...-ebs_dist2.mp3 6. Even more
Drive. I don't like distortion like this, just wanted to show how capable is this unit.
http://ulozna.soulslavers.com/soubor...-ebs_dist3.mp3
Microbass is VERY versatile unit, those clips are just fragments of HUGE amount of sounds you can dial in. I tried to show especially Drive of this Preamp/DI. Hope you liked it little bit
Enjoy.