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Current NAD integrated amps, what are your impressions?

I just picked up a C326BEE and wanted to hear if my results are common, or what the general consensus is for NAD. I did some searching on this forum, but there doesn’t seem to be a lot of love or threads directed at NAD.

I actually acquired a C372 about 3 years ago, but sold it within a year as it seemed pretty bland and laid back. I’ve heard that this vintage wasn’t as reliable and my remote control did die. When I shipped it to the buyer it showed up DOA in one channel! I helped him with the repairs but it left me with reservations regarding NAD. From what I can gather, the current models are much more reliable.

So Spearit sound is clearing out refurbished NAD components, and I couldn’t resist the price(no affiliation). Bottom line, the 326 sounds way better than I expected. I’d been using a Denon AVR3801 in 2 channel with a second system, and the imaging, clarity and punch is easily better with the 326. I’m driving Tannoy DC4 bookshelf speakers and what a soundstage!. Diana Krall tracks are recorded with the piano mic’d so the lower register starts in the left speaker and the highest notes in the right. I’d not heard that with the Denon, but the 326 sets it out so clearly.

So what has your experience been with NAD?
213runnin
213runnin OP
914 posts
 
I've been looking at new speaker cables, as the Audioquest type 4 are laid back somewhat.  Nothing wrong with that, but the Paradigm Sigs are also a little laid back.  Gee, now that I think of it, the Parasound Halo stuff may be on the warm side to.  Anyway, the end result is a too warm sound.

Fast forward to the new Nad, with the Tannoy DC4 the sound is more open and airy.  Certain go to auditioning music has the extra highs, etc.  I've definitely got to do some experimenting this weekend.  I do have some Type 4 I could try with the Nad.  I'd also like to put the Nad in the main 2 channel system just to see what it can do.  Also, I should try using it as a pre since that's an option with the C326BEE. 
213runnin OP
914 posts
 
So I tried the Nad C326BEE driving the Paradigm sigs S6, just to see what they could do with the big floorstanders.  The sound left me the impression that there wasn't enough grunt, although I didn't try to really crank it.  The highs seemed a little strained at times as well.  

Trying the preamp section to drive the Parasound A21 brought much better results.  The soundstage was filled out with good separation and nothing really stood out as deficient.  

Putting the P7 back in as preamp revealed the weaknesses of the NAD.  More detail and refinement, like things were just in better focus.  Of course that's to be expected comparing a $550 component vs a $2300 one!  Still, the 326 acquitted itself well considering the big price jump. 

Having the Nad drive the little Tannoy Revolutions again brought back the jaw dropping moments for those speakers.  The 326 does best with speakers that aren't too much of a load, which is of course to be expected.  I'm sure that there are plenty of floorstanders that fit into this category, though I don't have any.

213runnin OP
914 posts
 
I thought I'd update things a little as I found the limits of the C326.  I acquired some Totem Dreamcatchers, they of the 4 ohm variety speaker.  I was experimenting with the little bookshelf because they sound so sweet and give a surprising amount of bass for a 4.5" driver.  

I ran up the volume to about 11:00(try that on your Nad amp, it's loud!), and it went into protection.  It kind of freaked me out!  I cycled the power and it started right up again, no issue.  I pinged another forum with this and the opinion was suspicion with the Nad's health.  I thought maybe it was developing a problem.

So this evening I repeated the volume experiment after changing speaker cables and at 11 it went into protect again.  I connected some 8 ohm speakers and tried to get it into protect with them, but even at 12(ear bleeding loud) there were no issues.  

I've now had the Dreamcatchers back playing for a 1/2 hour at moderate volumes and no problems.  I think I'm in the clear, but has any Nad owner put their amp into protection before?  
smrex13
645 posts
 
A couple of years ago when I was getting back into this hobby I tried an NAD 375bee, and I was very impressed.  I was experimenting with a lot of different gear, and at the time I thought I wanted an internal DAC.  I ended up selling it to move on to other things.  However, I still remember how powerful and clear it sounded.  You can take it to a much higher level by removing the pre-out/main-in metal connectors and replacing them with a good quality interconnect.  The upgrade in sound is startling.

Best, Scott
213runnin OP
914 posts
 
That reminds me, during the above experiment I had a pair of interconnects on the pre out/main in and they weren't shielded.   I was getting interference for 1 second upon start up, then quiet.  I couldn't figure it out immediately, and it made me nervous!

Finally I swapped out those IC's with some others that were shielded, and no more noise. It made me realize that everything does matter.
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