Power line question

Do you really need a dishwasher? Ever considered a portable dishwasher? Frees up a dedicated 20A circuit... More cupboard space... You can sell that.

Ha, ha, indeed, I do not need one! In fact, it has never been used since we moved in. However, my dedicated listening room is the farthest room from the kitchen. It's not a big apartment, but I cannot run an extension cord from the kitchen to the listening room; my gf would never allow it and it would look ridiculous as the cord would have to be run through the living room. Re-wiring is not an option as it's a rental.

Sorry to be reviving this dormant thread, but I have some additional questions that I'd like to ask to solicit your opinion.

Is it possible to have a truly dedicated power line in an apartment building? It seems that one could rewire one of the circuits perhaps to only feed the system, but wouldn't that line be still shared with the rest of the tenants in a general sense? In other words, if a 20 amp circuit in my apt feeds small appliances in the kitchen, would using it for the system only be what people refer to as a "dedicated line"? Since other tenants also have that circuit and might be using their blenders and microwaves at the same time as I listen, would that mean it is not a truly dedicated line? How isolated are individual circuits in an apartment from other tenants' circuits?

My neighbor, who also happens to be an audiophile, had an electrician rewire his air conditioner line to 115V for use with his system. He calls it a dedicated line, which it most likely is during the winter months, but if the rest of the tenants living on the floors below him and in the rest of the building are blasting their ACs in the summer, wouldn't that affect his "dedicated" line?

Actusreus, a dedicated line only insures there is nothing else on that breaker or line. If you have bad ac... you still will have bad ac.

Sure. Aside from that, are you saying that mine circuits are isolated from my neighbors' so that their usage has no effect on mine whatsoever? I noticed my kitchen light flickers barely noticeably sometimes; is that a sign of bad ac, heavy demand in the building, or something else?
Our power lines are underground and my audiophile neighbor agrees with me that we have a pretty good quality of current, especially late in the evening and at night for obvious reasons. I'm just exploring the benefit of dedicating a line in an apartment building with neighbors sharing walls and ceilings.