The AudiogoN archives has many, many threads about plugging the amp directly into the wall vs a power conditioner. Having a dedicated circuit is one of the best solutions for improved SQ. It would be even better to have 2 or 3 dedicated circuits with the outlets clustered relatively near the equipment rack. This would save costs on the lengths of power cables. One circuit would be for digital only (DAC, Streamer, Laptop, TV, etc). The other(s) would be for analog - perhaps, future tube monoblocks. A conditioner or conditioners could easily be added later to each circuit if desired.
Re: safety If everything is up to code, circuit breakers will do their job. If the electrician is licensed and has a good reputation, then all should be copacetic. Most consumer electric space heaters draw more power than a stereo amp or power conditioner. The amount of power drawn by an amp or conditioner is determined by its design. A relevant formula is: watts (w) = volts (v) x amps (a). Two thousand watts draws 16.6 amps @120v. So, a common household circuit of 20 amps should be plenty. If the circuit is a very long run from your rig to the utility box then there will be some voltage loss along the way. But, very few amps or conditioners draw 2000 watts.
