Hi, I have an Ashdown LittleGiant 1000 which has a well-known poor preamp. I have read about that many people using a boost pedal before the amp to compensate the weak sensitivity. So I obtained an Electro Harmonix LPB-1. Everyone had good opinion about it, no colorization, no noise, whatsoever etc... I plugged my Stingray 4 into it and about noon (or even about 9) it produced a characteristic overdriven sound out of the box... If I boost the preamp eq, it became more and more aggressive (but not so nice... like clicking and so)... If I reduce the volume on the bass, the "overdrive" disappears, even on full boost on the pedal. This way I can only achieve a slight boost, about 10dB, or less... Is this normal, or is it a faulty unit?