Power converters/conditioners/phase dealies

[Iommic Pope]

So, I have an old Ampeg SS140 head coming in to go with my old Pro Tube.
I want ro run them together, but I don't want to have to pay the $$s to get the Ampeg converted to 240v (been down that road before with other US amps).
So i was thinking of getting a step down converter (or step up), but then i thought i might open myself up to phase and ground loop issues.
Down the track i may incorporate a third amp into my rig, so I was thinking, as i can switch the Laney over to 110v to match the Ampeg, maybe its time to hunt for a one stop shop solution.
Is there something out there that does power conversion, conditioning (not a must but would be a nice bonus), allows for phase control and has multiple outputs?

[waltdogg]

just use a good aby. radial twin city is one of em.

[Iommic Pope]

For phase inverting, yeah, but I'm gonna have to spend money on a step down anyway, so i was hoping to get everything in one neat package.

[waltdogg]

as well as isolated outputs to prevent ground loops.

generally you'd need some sort of aby pedal just to run two amps at once.

[Iommic Pope]

Yeah i was gonna build a switch to run clean to the laney and then engage a tb loop for dirt to the laney that also splits to the dirty ampeg, so its basically like a punch in amp.
So, not truly stereo, just like a giant extra distortion pedal.
I was sort of hoping to take care of that sort of jazz at the power source so I didn't have to fuck around out the front of the amp.

[waltdogg]

you have to do it from you guitar signal, it has nothing to do with the power supplies it has to do with gain stages within the amps.

[Iommic Pope]

True?
I was probably misinformed but I thought I'd read somewhere that you could tackle that either end.
More reading is required, then.
Thanks man.