From what I've quickly read, it sounds like the OP just wants to blast some metal in the bedroom and wants a straight forward 2 channel amp to switch between clean and metal. Some high end $1,000 amps: mesa, engl, etc. have been mentioned and no doubt they are good amps.
However, the blackstar HT series or Krank Jrs seem like a no-brainer for his needs. The HT-5, HT-20 get loud yes, but also are absolutely designed for low volume metal purposes too. Kranks have similar specs: clean to metal, low wattage. Both of these brands can be had for great prices. I've put an ht-5 through a 2x12 with great results in a live band setting and obviously it is good for low volume situations with it's cab simulation output, headphone jack, extreme distortion that sounds pretty much exactly the same if the volume is on 1 or 11.
If you want 100% clean, 100% metal, footswitch, effects loop, low wattage, then I recommend Blackstar HT or Krank Jr.