[quote name='tom1946' timestamp='1462028637' post='3039769']
Right, just got my 2nd rumble 100, first one didn't work, just a faint noise at full volume and the new one is just the same. I have to have the o/d switched in to get any volume at all. Just gain and volume produce very little at all, is it meant to have the overdrive on constantly to get any volume? what am I missing here? The drive and level knobs seem to control all the volume. I don't want overdrive.
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Send it back straight away - the 100 should be as lush tone-wise as the 500 and is very loud for a 100. This without using the OD circuit at all. There is obviously something very wrong with it. Either you've been extremely unlucky, or somehow you have been sent the first faulty unit back again!