Fear of volume control

Given a well recorded album (no matter the format), a great system will have it sounding good at low volume levels with very good detail of all the music within.  But for a greater entertainment value it's so much better at higher volume levels.  You'll know when you have it too loud.  The position on the volume knob is not a great indicator.  Your ears and good sense should be able to make the best decision.
Great high fidelity is a wonderful thing.

Yep, the refrigerator goes off, especially on Saturday nights when doing some serious listening.  It does make a difference for the noise floor.  I always wright a small note "Fridge" and leave it on the kitchen counter top.  I'll always see that before turning off the lights and going to bed.  Only once I made the mistake of forgetting the turn the refrigerator back on.  In  the morning it was obvious as the milk was not so cold and the freezer side fared better but still not a good idea.  I now always use the note on the counter.  Lowering the noise floor just makes for a more pleasant listening experience.