A sufficeintlly sized isolation type transformer (inductor) will act like a air pressure tank. Transient draws of current will be satisfied, and, the advantage of not dropping voltage as violently on the primary side (where your other equiptment is) when your amp draws peak current. If you have thin wire from the fuse box, poor connections in your outlets, and resistive breakers, a large isolation type tranformer will give you huge gains in stability of the voltage in the primaries and secondaries (before and after the unit). However, if the transformer used is too small, it will limit the peak current the amp can draw, making performance worse than no isolation at (except in the case of REALLY bad house wiring). USE a MOV at the primary, no possible loss of current and only microvolt drop, except when voltage spikes beyond safe range specified (150 vac)
Bottom line, I use RF noise suppression, and servo driven variable transformer on the low level devices, and isolation with MOV on amps. Safe and happy...