Meir, what actual wattage input are you getting with the ATD ? Do you have the "standard" TUs in it? With the ARB, are you using that 90degree tuning adaptor with knob? tnx I grabbed an ATD recently from storage thinking to put it up for sale, but i have to admit, i do like the looks of thing. ( But it is heavy, too. ) -Hue K7HUE