"The whole stage" implies wide frequency range, to me. Small bookshelves will be limited in frequency range by definition. My wife actually preferred narrow floor standing speakers rather than bookshelves, so consider them if you can. Or, a small sub in the corner helps round out the lower frequencies. I use a small REL with Von Schweikert VR-1s and am extremely happy. If you use a lower watt amp/integrated you will actually have better control over the volume at lower levels. Using very efficient speakers may make the volume harder to control. The least obtrusive bookshelves are the Gallo spheres. Matched with their sub they are a great combination, take little space and you can have 30-20k Hz. Good luck and have fun!
bedroom system need quality at low volume
have main system loaded clause 700 amp Alon tri wire rega cd oracle turntable McIntosh tuner dual tannoy subs love it all.However when i retire to bed i must make to large of a sacrifice . need small speakers that at low volume can present the whole stage