I don't know if I'll manage to do this right and to attach the file (I've never done it before), but I'll try.
The Bass Guitar, which is one of the presets when you download Oxe, is not among the best of the presets. I have modified it, though, to a sound that perhaps reminds of a fretless bass guitar. The original one has a click sound in the beginning of each note that certainly isn't nice.
I use this new sound together with an external high cut filter (1000 Hz) and chorus, but you can probably use it as is.
If everything works as I hope it will, this new bass guitar will load as number 126 in the bank you are using.
/Per P.S. I'm afraid that the .vstpreset I've provided - besides #126 Bass Guitar - also contains the entire original bank that comes with Oxe when you download it. Now, I don't think this is a major problem, since I believe that everybody double and triple save their own works and efforts (?)
Seems it happens very little here. I think Oxe is worthy of more attention than this, althogh I've just begun to look at it myself. It's possible to download a modified bass guitar above. To get rid of that click sound - as I remember it - I just increased the attack time. But I'm not 100 % sure I remember right. I didn't succed very well in getting the Oxe-filter or -resonance to work very well, but as far as I know it isn't forbiden to use external stuff.