Do we really need anything more than 8" woofer and 1" tweeter for medium size room?

inna

Your question regarding the 8" woofer is perhaps more complicated the suggested. If you are talking about a two way speaker then it might be more advisable to find one that has a really involving midrange and nice smooth highs. If you have three drivers, a two and one half way or a three way you are more likely to find better tighter bass. Bass quality to me is far more important the the amount of bass, especially in a small room. 

I think that most listeners especially older ones like myself understand, there seem to be two types of bass sound, the big woofer sound, fat not deep but move lots of air and seem to fulfill most listeners of that enjoy that genera. The newer style is the smaller woofer that is fast and tight, more accurate, but not as big of a sound. Which sound that you prefer 

Inna

That is the key isn't it. The goal for  me is to enjoy the music. To hear a high resolution system with no edge, no noise, not analytical and produced in a way that is sounds like it is playing music for me and not just a big expensive PA system. Make the music accessible.  

Inna

What is sufficient bass? Will the room vibrate? Will it be lightening fast? will it be fat and slow?

For me it just needs to be satisfying, I am not trying to impress anyone I just want to enjoy listening. Bass is so tied into to room response that no full range loudspeaker can provide the maximum amount of bass that room can handle without the danger of going over the top. 

So a bass that satisfies is what I require to describe a speaker as  phenomenal, if it has phenomenal mid-range and highs and is cohesive and fast and disappears.