Until now, I've not used an active bass for well over a year so I found the preamp to be 'hot'. Loads of bass and loads of fizz to my ears. The last gig to this I did was with a Gibson Ripper and Gibson Thunderbird so the Sandbergs a bit different. I set the bass and treble knobs to the centre indent and left it there. It was great, Pbass with a bit more on top would be my simple description. The bass is active only, no push pull for active/passive.