So I am using a sansamp bass driver as a preamp to drive my stewart pr 1000 hooked up to my schroeder mini 12+ Trouble is i dont seem to get as much volume as i think i should. Yes, the output switch is set to "line". I have the stewart at full volume (1000w bridged mono 4ohms) and the sabddi's level knob is maxed as well. the drive knob and the other knobs are at 12 o'clock. Overall, the volume level is adequate for my rehearsals with my classic rock cover band (we are not that loud!) but i just thought it would be *alot* louder. My ashdown electric blue 180-15 seemed to go just as loud. Also, my 200w clarus with 250w wizzy seemed louder (however the tone with the wizzy / clarus was thin while the tone i get with this rig is nice and fat) A few ideas about why this is happening: -the last rehearsal i used a 9 volt battery - would the sabddi give more output if i used the ac adapter? -the sabddi doesnt have enough output? the specs for the output is 0dbv. I was told by Tech 21 that this is enough to drive a poweramp like mine. Does the SA RBI have more output? If i crank all the knobs to maximum i know it will go louder but then it will also sound like crap. I am just surprised that this rig isnt louder. I know with a larger cab it would be much louder, but the cab is rated at 500w and actually does a great job. i think the problem is the sabddi. If a 1000w isnt that much louder than 400w i think i may just get a nice light, compact eden wt400. Will the searching ever end?