I'm running a carvin x-100b (6l6s) into an avatar 4x12 with cl80s. The amp is eq'd to emphasize the low end and some upper mids (not the scooped mid sound...more of a v-4 sound). I'm running a looper into the amp to do some dual parts, both of which are pristinely clean, and the amp gets distorted on the low end when I layer the second part (the bassier of the two). I don't want that distortion...I want it clean. Am I pushing the amp or speakers too much or is there a better speaker suited to handle this? as always, I appreciate the assistance.