[quote name='dave_bass5' timestamp='1370248668' post='2097953']
Yes you can do all that, although im not sure about getting clean signal. Do you mean direct unaffected or just clean as in not broken up? The only way i can see of getting a direct, non affected signal is to turn the effects off.
Using the B3 as a USB interface allows you to use the headphone jack on the box itself, and you can listen back to music coming from the PC, whilst at the same time using the B3 in the normal way (ie, effects, different patches etc).
The B3 also has a mix control so you can use this to balance the Bass level with whats coming back from the PC, so the B3 tone doesn't have to go through the PC in order to play alone with MP3's etc, although turning that all the way to max cuts off the direct B3 tone and only gives you 100% whats coming back from the PC. I guess this is more for using with recording software. Depending on your PC you should be able to get quite low latency. Mine is 2ms without any issues.
There is also a level out for recording over USB. This gives a bit of extra boost or cut.
I think ive got all the above correct, ive not used mine too much like this but i did find it so much easier to use with my PC than using software like Amplitube and GuitarRig etc.
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Cheers this is great news, what I mean is there much hiss, static when plugging in a guitar or bass when connecting to the pc if that makes sense?.