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NAD M51 Direct Digital DAC Impressions - Page 103

post #1531 of 1540
Quote:
Originally Posted by Lev Ahriman View Post

Question:
No hdmi signal pass through if the unit in standby? 
Quote:
Originally Posted by WDitters View Post

Aside from the fact that there is only video pass-through on the M51, you are indeed correct in your assumption. When in standby there is no pass-through at all.
Quote:
Originally Posted by thomascrown View Post

That and even when your m51 is on, but you have selected another source

I know this discussion is like a year old now. But just an FYI that while I know there are countless HDMI splitters, I HIGHLY recommend the "HD Fury 4k Integral" not only to split or switch HDMI but also to dial in whatever feature, encoding and HDCP encryption capability I want between source and destination. I own 3.

With it you don't need to rely on HDMI passthru. You can run the dac in parallel to the next device with full audio/video going to both. And you can use a smartphone app to tweek the video and/or audio signal, like force 2-channel or 5.1-channel audio from the source, and oodles of other stuff.

Seems the Amazon seller I bought mine from is out of them. There was a legal action against the manufacturer over the HDCP overriding it can force; not sure if there is an injunction over its sale now. If you can find it sold somewhere, get it.
post #1532 of 1540
Quote:
Originally Posted by m8o View Post

So me, prospective buyer again...

What attracts me most to this is the stereophile measurement's undithered sinewave is so pristine. Most dacs have a dozen or two small zigzags riding the sine wave. Which to me denotes that 'digital sheen' sound.

Is the M51 as 'analog sounding' as that sinewave graph implies it should be? Thanx.

 

Personally yes, I really like this DAC. Get it in front of a good pre/power combo and feed it high res files and I think it punches way above it's price point, to be cliched. I feed mine with the NAD Masters series M50/M52 combo, and the DAC feeds my Pass Labs X2.5 pre and X250.5 power amp. I run a Chord Hugo TT head-fi setup and I have tried the TT in place of the M51 in my lounge - the M51 comes pretty close, IMO, and looks far more like a HiFi item than the TT while doing so (not bashing the TT, I know what it was designed for and I use it as such). 

 

Great DAC for the money the M51. Very transparent, which is what I am into.

post #1533 of 1540
Thanks for the reassuring words. I decided to buy one from another headfi'er last week and it should be here shortly; so th price was far better than new. I'll be using it to drive my McIntosh MHA-100 and Rane HC6S via split balanced and other amps via unbalanced.

The only curiosity I'm left with is why they exchange hands so often. I'll be the fourth owner (or more, if it exchanged hands before I had visibility to its provenance). This forum, audiogon, others, are filled with sales of this. Seemingly at a greater rate than its A+ stereophile rating would suggest it should have.
Edited by m8o - 12/3/16 at 11:28am
post #1534 of 1540
Quote:
Originally Posted by m8o View Post


The only curiosity I'm left with is why they exchange hands so often. I'll be the fourth owner (or more, if it exchanged hands before I had visibility to its provenance). This forum, audiogon, others, are filled with sales of this. Seemingly at a greater rate than its A+ stereophile rating would suggest it should have.

 

Just the never ending quest to try new gear:)

post #1535 of 1540
Quote:
Originally Posted by barid View Post

Just the never ending quest to try new gear:)
Well I know about you smily_headphones1.gif ; have read you say that. But that stands for most?

Only saying that rhetorically. No way to answer without a large number of sellers chiming in I guess.

I guess I have a hard time relating. I just buy stuff and never part with it; just stop using it and it sits.
Edited by m8o - 12/3/16 at 1:04pm
post #1536 of 1540

People tend to use DAC's to flavour the sound. Smooth it out, add some energy, etc. DAC tech is also advancing at a rapid rate and so something new comes out with new buzzwords and special design terminology and people jump ship. There's a lot of M51's out there because they're very good for their price. They do not however add much of anything to the sound signature, which is personally why I like it, and why I like the Chord DAC's. 

 

Sound is more than measurements, but it's measured performance is truly stellar. Look at that 24 bit noise floor approaching -160db and the sine wave it generated on stereophile. 

 

Don't sweat it. You've got one at a great price, just check which firmware you're on when it arrives and judge with your ears. 


Edited by phonyx - 12/5/16 at 6:24am
post #1537 of 1540
Thank for that. I get you point. I do indeed understand 'musicality' thru ownership of my mha-100 amp compared other amps I've owned.

After all this time, is revision 1.39 still the firmware preferred?
Edited by m8o - 12/5/16 at 8:54pm
post #1538 of 1540
I like 1.41. It's what mine shipped with. 1.39 is just 1db louder at the same volume setting, nothing more. If you volume match them I was unable to hear a difference. That said 1.41 auto powers off after i think 45mins of no signal which annoys me sometimes as it's the only item in my NAD stack which does this. YMMV
post #1539 of 1540
Hello All.
 
I have made changes in the power of a headphone amplifier with good results and I would like to do the same with the power of the NAD M51 I have ¿Could anyone tell me about the possible results and with what voltage is the board fed?

Thank you.
post #1540 of 1540
I spent a few hour with the new arrival. This is indeed an incredibly good dac.

It's 2:19am so forgive me for not elaborating; like any regular readers need me to say a word anyhoo. It would be more for the late comers like me anyway. No buyer remorse is the important take away.

Streaming SACD over hdmi from my Arcam DV139 as source, and the M51 is displaying the expected 176.4k of a un-re-sampled dsd to pcm converted stream. So that apeases a concern I had when reading early thread posts saying folks saw 88.2K. But I only read about 10% of this thread so I probably missed updates saying that's all better now.
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