Comparing One System to Another - A + B

I'm confused.  The NAD has 180 watts per channel.  Shouldn't that be adequate or not.  If wattage is not the problem, are you suggesting the speakers are not adequate?  I've listened to them at full volume right in front of them and the clarity issue is still there.

On another related note, I have a new Volvo with the Bowers+Wilkins system.  Similar to the living room sound, the sound is good, but not as crisp as my Tannoys.  Perhaps this might be a Bowers+Wilkins sound issue.  Any thought on that?

Do you think this is something Dirac could correct?  Thanks!

Wpc don’t tell the whole story. Consider most of the time were using a single watt or less, but the storage capacity will decide how dynamic the speakers sound. On some speakers most amps will sound the same, but some speakers can suck an amp dry. Class d is supposed to be so fast at switching ( don’t know what that means) they can stay in front of a speakers demands. When doubt do nothing.

If I'm reading this right your living room speakers are mounted about 20 feet in the air, try bringing them down and putting them on good stands.

Any NAD with wall mounted B&W bookshelf speakers 20 feet away would not impress me. I think what you are hearing is the difference between a high efficiency speaker in a small room vs a low efficiency speaker in a bigger room.  The 180 watt NAD does not make up for that difference. Sorry to be blunt. You'll need bigger loudspeakers and much more power if you want to match your near field experience in the other room. Perhaps you might like a more lively sound of a horn loudspeaker like a Volti?  Or something a bit more affordable. 

Thank you for your suggestions!  This sheds good light on considerations for me.  It also brings up other related questions I have about what may be occurring.

Part of the sound difference is twofold:  

1) I'm hearing frequencies with the Tannoys that I'm not hearing with the living room B&Ws.  

2) I'm hearing crispness of sounds with the Tannoys that I'm not hearing with the living room B&Ws.

But, these same sound differences are also true comparing the Tannoys to the B&W sounds in the Volvo.  Which suggests that possibly part of the difference I'm hearing is between Tannoy and B&W speakers.  Do Tannoys and B&Ws have their own tonal "personalities?"  If so, what are they?  

The thing that makes this even more confusing to me is the fact that the Tannoys are technically near field studio monitors - which suggests that they should be "neutral" in sound.  But in this situation, it is the B&W speakers that sound more "neutral" than the Tannoys.

Does anyone have any opinions on whether another Dirac treatment could be of help?  Thanks!