I had a prior model in my prior "B" system. The C370 integrated, so I will comment on the bespoke NAD sonic signature from personal experience..... not just its strengths but also Its warts.
I heartily agree with the common themes in published reviews .... sample attached
http://www.techradar.com/reviews/audio-visual/hi-fi-and-audio/amplifiers/nad-c375bee-625300/review
AGAINST
-- Slight softness in midband
-- Lacks the polish to make the most of some high resolution speakers
I would not spend anymore on speakers than its max MSRP (past ) $1500 price-point (this model now discontinued ) simply because it planes out dramatically in its audio performance capability with speakers capped to its price strata,
IMO and my hands-on experience , doubling your speaker budget with this rig to $3K won’t help you.
As a personal experience comparison, I ran TOTEM ARROS and FORESTS simultaneously with the C370 . The FORESTS at more than double the price of the ARROS did not prevail at all.
In fact, I actually preferred the ARROs simply because it was a better match (for me) because of the "dark" and rolled-off top end audio signature of the NAD.
The FORESTs then mated with an ARCAM FMJ rig (much more $ inline with the FOREST price strata ) with a better detailed and airy sonic signature was the key to an audio performance step -up that the NAD could not deliver on.
Your takeaway IMO
I agree with Willand’s posted suggestion that the PSB speaker line (same distributor) will marry up much better with the NAD
FWIW
I heartily agree with the common themes in published reviews .... sample attached
http://www.techradar.com/reviews/audio-visual/hi-fi-and-audio/amplifiers/nad-c375bee-625300/review
AGAINST
-- Slight softness in midband
-- Lacks the polish to make the most of some high resolution speakers
I would not spend anymore on speakers than its max MSRP (past ) $1500 price-point (this model now discontinued ) simply because it planes out dramatically in its audio performance capability with speakers capped to its price strata,
IMO and my hands-on experience , doubling your speaker budget with this rig to $3K won’t help you.
As a personal experience comparison, I ran TOTEM ARROS and FORESTS simultaneously with the C370 . The FORESTS at more than double the price of the ARROS did not prevail at all.
In fact, I actually preferred the ARROs simply because it was a better match (for me) because of the "dark" and rolled-off top end audio signature of the NAD.
The FORESTs then mated with an ARCAM FMJ rig (much more $ inline with the FOREST price strata ) with a better detailed and airy sonic signature was the key to an audio performance step -up that the NAD could not deliver on.
Your takeaway IMO
I agree with Willand’s posted suggestion that the PSB speaker line (same distributor) will marry up much better with the NAD
FWIW