Having only ran the V3 twice now. I did run HPF1 for moe. Buff. I had no filter on and set at 25 and no trim. Levels were going throught the roof! We were very close to the stage as far as FOB goes though. Flipped it down to 1 with some trim and it seems to smooth it out, but there is a lack of low end, not a lot, but some. I probably should have moved back 10ft, and ran with no filter. I wish it wouldn't make the sound on the recording to where you can tell you flipped the switch.