Check the ohm rating factor across the spectrum for all the Thiels, some of which which can be pretty demanding on a small amp's current capabilities. Your NAD might not be able to deliver a powerful signal clean enough to prevent frying itself, the drivers or your ears.
Thiels are notoriously accurate and unforgiving of sources and electronics -- tend to show up any harshness along the chain, and can be fatiguing. If you're in love with accuracy but want to soften the high end a bit, and have the money, look into the heftier c-j tube stuff.
If the NAD must stay, look into something easier to drive, whose resistance doesn't drop much below 4 ohms.
Putting speakers along the long wall is not so bad, depending on boundary reflections (I must do this, too). Just keep them well out in the room if possible.
I use Thiel CS 3.6 driven by Forte 4A which, though rated at 50 amps, is Class A and apparently provides enough current to tame these beasts even for Mahler -- though I hasten to add my room is only 22 x 14 x 9 and I don't play the system terribly loud.
Cannot comment on price differential, except to speculate on relative popularity.
Thiels are notoriously accurate and unforgiving of sources and electronics -- tend to show up any harshness along the chain, and can be fatiguing. If you're in love with accuracy but want to soften the high end a bit, and have the money, look into the heftier c-j tube stuff.
If the NAD must stay, look into something easier to drive, whose resistance doesn't drop much below 4 ohms.
Putting speakers along the long wall is not so bad, depending on boundary reflections (I must do this, too). Just keep them well out in the room if possible.
I use Thiel CS 3.6 driven by Forte 4A which, though rated at 50 amps, is Class A and apparently provides enough current to tame these beasts even for Mahler -- though I hasten to add my room is only 22 x 14 x 9 and I don't play the system terribly loud.
Cannot comment on price differential, except to speculate on relative popularity.