First off all, I'm new to bass. But can I use this stuff in this way?
Bass > Harley Benton HB-40B > Harley Benton BDI-2000 > Harley Benton BB115T
Shure SM58 > Behringer Xenyx Q802USB > Harley Benton HB-40B > Harley Benton BDI-2000 > Harley Benton BB115T
Thank You!
Edit: Or do I HAVE to use a head too? Or can I skip the head to save money?
Just to clarify...
The HB-40B is a 40w combo (so it is a head and a cab in one box)
The BDI-2000 is an effects and DI pedal (with an XLR out and a Paralell out)
The BB115T is a cab
So, you can't get any sound out of the BB115T without another amplifier (head).
You can go:
Bass to BDDI-2000,
Then the XLR from the BDDI-2000 to the Xenyx, also the SM58 to the Xenyx
From the Xenyx via USB to you computer.
From the Paralell out on the BDDI-2000 to the HB-40B
The HB-40B also has another line in, so you could go from the Xenyx to the HB-40B, but only in mono, and I can´t say how good this would sound (I have a HB-20B and it's not great).
To be able to get any sound out of the BB115T you will need another amplifier, either a power amp or a bass head. Then you have more options, but I wouldn't spend too much time trying to get the BB115T and the HB-40B working at the same time, as the results will no be anything special.
If you want any more info on Harley Benton stuff, check out the Harley Benton Club:
http://www.talkbass.com/threads/i-own-a-harley-benton-club.1123735/ it is more about basses, but a lot of Harley Benton stuff is owned there, so we will probably be able to help.