I figure electric guitar playing physics people might know how to answer this. Can speaker rounding be achieved at lower volume levels, without going to a low power amp? I have a 60 watt combo with one 12" speaker rated at 70 watts. It can get pretty loud when I try to get that nice full roundness. It's a modeller so I can get some decent sounds at lower volume, but I want to get rounding at volumes that won't disturb the neighbors. Is this possible? Or is true rounding only achieved if the speaker is driven?