I received an Ampeg BA-110 combo amp as a gift, which replaces my bulkier Carvin that I didn't like lugging around. That said, I plugged in my MIM Jazz with both volume knobs cranked and the tone around 7. I immediately noticed that the sound was barely noticeable until the amp's volume was turned to about 3/4ths of full. The tone controls were set flat, being boost only. Even at full volume and flat tone, it was barely suitable for practice. Plugging into the "active" jack produced predictably lower volume. I would prefer to keep the tone flat on the amp itself. Is there something about the setup that I'm missing, or is it possible that the amp might not be working correctly?