The 150 watts per channel ratings are the output measurements for the amps. Current draw calculations deal with the input ratings of the amps. If you post the make and model of the monoblocks , someone will likely know what the amperage draw is.
Power line question
I live in an apartment building that's relatively new (built in 1993). There are no visible power lines attached to the building, which leads me to believe the power lines are underground. The building has a dedicated line for air conditioners. I know very little about power outlets, wiring, amperes, etc. All I know it's 115 volts. Here's my question. I will be replacing my tube integrated power amp with tube monoblocks producing at least 150 watts per channel and a tubed preamp. I have seen occasionally discussions about the demand on the power line electronic equipment makes and parameters for dedicated lines and such. Should I worry about blowing fuses or overloading the power line with my new amplification? My gf and I triggered circuit breakers a few times in the past by using hair dryers simultaneously in our respective bathrooms, but once we stopped that practice, no other mishaps occurred. I have a basic power conditioner with 4 outlets, but that's about it. With my less than rudimentary knowledge of power delivery, I wouldn't even know where to start to answer my question so I thought I'd start here. Thank you for any advice.