DI Question

Plugging the DI to the mxr bass di + will only take signal from that pedal and anything running into it. So no your amp won't be put through the pa and will just be heard by you. Why don't you plug the pedal into the amp (bass-pedal-amp) and take the DI signal from the amp which is giving you the amp and the pedals sound going to the PA I did that before

 

What Matt said. However, just remember that huge PA speakers act differently than your bass rig. So, be prepared to work with the sound guy if he tells you you are too boomy, or too thin, or whatever is making his job hard sitting you in the FOH mix. In other words, go for "your tone" as long as it sits well in the overall mix. If your tone doesn't sit in the mix, then it is doing more harm than good.

 

If I'm understanding you correctly, you are trying to capture the tone that your amp gives your bass and send it to FOH... Right? If my assumption is correct, running the thru output on a DI to your amp doesn't accomplish that, my friend. It just gives your amp signal.

 

the soundman might have a $2-300.00 high quality Di that he prefers.
built in Di's on amps are usually cheap and noisey, the Di on the M80 might be a cheap circuit as well (don't know).
also, the soundman usually prefers a non-coloured signal because it's easier to work with.
when you tailor the M80 for what you like coming out of your amp, that same tone might be horrid coming out of a PA.
the best situation is a Di and a mic on your cabinet.

 

From what you describe in the original post you were NOT sending any tone from your amp to the PA. To do that the sound guy needs to take the XLR from the back of your amp (if it has one) or use a DI that can go in between the speaker out of your amp and the speaker in of your cab. Or he can just mic your cab.

I used to worry about this all a lot. I worry less now, but when I have my preference I like the sound guy to mic my cab and use that.

-JV

 

+1 to blastjv. The situation described in the op suggests bass into DI, and then DI to house/amp. This is no different than using the MXR DI instead of the house Di. Either case, it's a direct signal to PA, and your amp is not involved.

 

Also worth adding that if you have a DI on the back of your amp, you also need to check if it is pre or post eq (and many allow you to select which to use). Only post will add the tone from your amp.