The Stax thread (New) - Page 1381

Please accept my apologies MH,

Being new around here makes me edgy on impressions. On an OZ forum, we caught out a dealer!

Nope.  Kinda depends on my mood on picking gear...but for the most part, its the SR-009s.

So instead you shoot an attack on a fellow member without even looking at their signature or user profile? Just because you had an issue on some local forum, doesn't give you cart blanche to call some out without any digging whatsoever. Not kewl dude! 

 

That said, I do accept your apologies. 

The M51 is outputting DC which the DC coupled 717 amplifies faithfully.  No source should output DC.... 

Can I measure it with a multi-meter?  Is this something I should consider returning the DAC to NAD to have corrected?  I understand your point that there should be no DC on the line, but is there any tolerance for even some stray DC?

 

Sorry for all the questions, this one is completely new to me.

 

FWIW

I've read a lot of threads on the M51 and haven't heard of anyone else with a similar issue.  Doesn't mean it hasn't happened.

I would return it personally but if you have a multimeter you can measure it.  For RCA you place the red probe into the hole and the black probe on the sleeve.  For XLR you place the black probe on pin 1 and the red probe on both nr. 2 and nr. 3 for each output.  The dac has to be on for this and playing music in case there is a relay shutting off the output. 

 

Adjust the meter to the lowest DC voltage setting if it isn't auto ranging. 

Thanks.  Out of curiosity I'll check it, and then I'll start talking to NAD about return and replacement.

@anetode, arnaud, MacedonianHero, MorbidToaster, dukeskd, rgs9200m: Thanks for all your impressions. You can always count on Head-Fi to reinforce your buying decisions. 

And burning your wallet at the same time.

Addiction.

 

There I fixed it. SH Forums have been reinforcing my addiction to vinyl lately. 

 

The M51 is a nice sounding dac, it has the best volume control that I have ever tested and that includes most over the counter Alps, Allen Bradley, a range of carbon and plastic film throughout my journey in this hobby, as far as I'm concern none of these go near it. However the M51 is poorly put together and the soldering on the pcb is less than desireable even for a cheap produced toy. When I got my M51, the minute I placed it in my rig one channel was intermittently tripping the speaker protection and a static hum could be heard coming on and disappearing during the 1st track.
I decided to take it back and the dealer had it on test on there showroom floor for 2 wks and decided to send it back with NFF. I contacted the distributor threatening to sue if it blew my speakers and that forced the dealer to send it an authorised tech. When I got it back it look like they hit every analog component with a soldering iron. Six mths in, one of the relays in the analog section was also slow to come on, that's now corrected itself after a session of switching it off/on. This isn't the 1st I have heard issues with the M51, there are many others on other forums with similar issues. The solder process on the pcb is a real let down for a top flight dac that's supposed to have bullet proof built quality.

No stray DC should ever be present in source components and that includes preamps, if I were in your shoes I send it back!
Edited by ecohifi - 1/18/13 at 6:25pm

My friend just got an used T1S, the amp can be turn on & sing,

 

but the transformer seems...strange,it's fatty

 

Where can i buy replacement transformer?..

 

thanks

 

Stax SR-009 & Woo Audio WES (Free Stand and Extension Cable) - $9500 (Downtown)

http://losangeles.craigslist.org/lac/ele/3544219780.html.

 

In case anyone in L.A. is interested.

If anyone is looking for this combo I'd check out this guy first

http://www.head-fi.org/t/631231/fs-price-down-woo-audio-wes-update-tube-009-sell-in-australia

(around 7300USD, and he gives you some nice shuguang tubes)

I've dealt with him before and he is an excellent seller.

 

^

Definitely worth looking into :)

I'd call that overpriced if you ask me.