Our band played a new small club (Hard Luck Bar) in Toronto this week, and they had some nice Yorkville subs in the system. The soundman was kind enough to ask "How do you like to go into the system"? I almost fell over. Usually I'm handed some ratty old passive DI with no explanation.
I told him that my amp has a nice clean DI out (Genz Benz ShuttleMAX 6.0) and would he mind using that? "Cool", he said "I'll go get a cable".
I set the DI for Pre-out, not post. It was only a 1/2 hr set and so I decided to keep it simple. I was using my ShuttleMAX and GB Neox 112t cab and was keeping it cruising low in the mix. During soundcheck, the soundguy seemed to be having a lot of trouble with the bass in the subs though, and from time to time it completely overloaded everything with low end.
After sound check he said he was having some trouble with the amount of bass coming out of my passive Reverend 5L, too much low end. I told him it was passive and that I was giving him a Pre-out and not through the tone controls of the amp. I was even using the parallel switch which had the least amount of bass output. Suddenly I realized that the passive tone control on my bass was set about half way down, rolling off the treble (my preferred tone with the Reverend). I told him that I would turn it back up for the set and he could see if that helped.
Lo and behold, the soundguy got a handle on things and the gigantic boominess was gone. I turned up my amp on stage because I couldn't hear myself over the guitar amps but only enough so that I could hear.
Lesson learned: FLAT is the best place to Start. Remember to zero out, not just your amp EQ's, but also your bass EQ's as a starting place.
We worked together to sort out the problem and the result was a good mix and a good set. Everything was congenial and he remarked afterward how my turning off of the passive roll-off really helped. No drama, good experience.
Oh yeah, turns out he was a bass player.
