Headphone connection solutions please

Posted by: Bruce Woodhouse on 09 February 2018

Not often I post in here!

System in brief NDS/NAC52/Active SL2s etc

I have recently bought a great pair of Grado 325e 'phones to use with a new Astell + Kern MK70 DAP and I was wondering if I could find a simple way of connecting them to my main system without enormous cost. I have had problems connecting the AK via WiFi to my NAS archive so this is looking like the only way I could play my full res files at home via headphones when I wanted to.

I'm not in the market for a Naim headphone amp and PS solution-too expensive and too many more boxes.

Can anyone suggest how I might connect them? I was thinking something like a Chord Mojo but I am not entirely sure if this can be connected to the BNC Digital output from the NDS. Would it work this way? Does anyone make connecters that fit from BNC coax on the NDS to 3.5mm coax input on the Mojo? Would it sound OK? I'm not looking for the last word in performance here.

I guess the alternative is a dedicated cheap n cheerful headphone amp connected to the NAC 52. Suggestions? I don't think I could connect a Mojo somehow this way, or could I?

Cheers Bruce

Posted on: 09 February 2018 by Richard Dane

Bruce, I would look for a dedicated headphone amp to connect to your Naim preamp. Plenty out there that sound good for not too much money; Creek, Rega etc.. you’ll need a tape interconnect - Naim or Chord would be my recommendation. 

Posted on: 09 February 2018 by NickSeattle

Rega Ear added to your 52 would be an obvious option.  Mojo or Hugo inserted between NDS and 52 would also be an option, if you don’t have any analog sources you want to listen to.

Personally, I wouldn’t want to bypass the DAC in the NDS, but it is simple to do with the right cables.  I’d get the Ear.

I use a Headline with a FC2X.

Nick

Posted on: 09 February 2018 by feeling_zen
NickSeattle posted:

Rega Ear added to your 52 would be an obvious option.  Mojo or Hugo inserted between NDS and 52 would also be an option, if you don’t have any analog sources you want to listen to.

Nick

I had a Rega Ear for years and despite it's modest price is one of the best analogue only headphone amps I've used short of going for the HeadLine.

I could have easily lived with it even now. Can't remember why I gave it way to be honest.

Posted on: 09 February 2018 by No quarter

The mojo will work from the digital out of the NDS,there are cables available.The thing is,are you already using the digital out for something else?...it becomes a pain swapping cables around.The mojo sounds fantastic by the way.

Posted on: 09 February 2018 by Emre

i have creek and gustard10 headphone amps connected by rca interconnects from 272 and i also connected my mojo to 272 with bnc/coax cable... so you can do both...second hand creek/rega/arcam headphone amps can be find, they are very good amps but not sure about synergy with Grado, i dont like grados at all, i had the same cans and sold them after a week, way too forward for my taste...

i have a SP100 AK player which connect far better than Naim 272 to my server and also to Tidal so i am surprised to hear about AK70

Posted on: 09 February 2018 by Bruce Woodhouse

Thanks folks. Slight snag is that I'm not sure I have any power sockets left (which was why Mojo and other similar devices tempted) but I will look into the birds nest at the back of my system and think again. I'm not sure I have any space in the rack either-I will look at the dimensions of the EAR etc.

Bruce

Posted on: 09 February 2018 by Huge

Connecting the MoJo to the NDS via the S/Pdif BNC will work fine.

Posted on: 09 February 2018 by Bruce Woodhouse

Thanks Huw

Finding a lead to do this appears to be a challenge though.

Posted on: 09 February 2018 by Huge

Can you use a soldering iron?

Or do you know someone who can?

Finally there are companies who will make up custom cables for relatively little cost (you would need to tell them it's 75Ω digital).

North Yorks is a bit too far out of my way (I was born a northerner, but defected to the soft south for employment reasons!).

Posted on: 09 February 2018 by Bruce Woodhouse

My soldering skills are rudimentary. I'm more of a duck tape/superglue kinda guy,

Bruce

Posted on: 09 February 2018 by james n
Bruce Woodhouse posted:

Thanks Huw

Finding a lead to do this appears to be a challenge though.

Chord can sort you out a cable for this application Bruce. You could either use a BNC to RCA adapter or get Chord to replace the RCA plug with a BNC plug. 

Posted on: 09 February 2018 by Huge

I seem to recall that you are / were a medic...

You can do something as phenomenally hard and complex as fixing people, but not mange something as simple as fixing a little bit of wire to a connector! 

Posted on: 09 February 2018 by Bruce Woodhouse

Huw

I rarely get the option of using a soldering iron on patients. Actually, never thinking about it!

Bruce

Posted on: 09 February 2018 by Eloise
Bruce Woodhouse posted:

I rarely get the option of using a soldering iron on patients. Actually, never thinking about it!

Is it that much different from using a cauteriser?   :-)

Posted on: 09 February 2018 by Richieroo

I highly recommend the Graham Slee Ultra Linear Diamond Edition ......... this is a stunning amp ... works brilliantly with NDS/552 and HD800S.

Posted on: 09 February 2018 by Huge
Bruce Woodhouse posted:

Huw

I rarely get the option of using a soldering iron on patients. Actually, never thinking about it!

Bruce

Practice makes perfect (even in practice *)...

NOOOOO 

(Actually Bruce, it's not Huw - last year I realised I had to change my name - but no problem you couldn't have known that.  )


*  OK, far too many puns available from the ambiguity there!

Posted on: 09 February 2018 by Don Atkinson
Eloise posted:
Bruce Woodhouse posted:

I rarely get the option of using a soldering iron on patients. Actually, never thinking about it!

Is it that much different from using a cauteriser?   :-)

The good thing about soldering is that if it doesn’t work out first time, you can usually have a second or third attempt...........whereas with a patient............ !

Posted on: 09 February 2018 by Huge

They become impatient?

Posted on: 09 February 2018 by NickSeattle

Grado makes or made a battery-operated headphone amp, for not a lot of money.  Might suit your Grado headphones.

Nick

Posted on: 09 February 2018 by fathings cat

I use the below solution and the mojo sounds great, yes it’s a faff with the cable, but with limited headphone use I can live with it. 

Shame Naim never developed a high end headphone amp......

Gary

 

Posted on: 09 February 2018 by GeeJay

+1 for Mojo connected to NDS digital out with the Chord interconnect.  Agree that the Headline plus PSU adds too many extra boxes (and cost) for a solution used occasionally only.

Sounds awesome with my Sennheiser HD800S ‘phones though.

ATB.  G.

Posted on: 09 February 2018 by Richard Dane
fathings cat posted:

...Shame Naim never developed a high end headphone amp......

Gary

Gary, is the Headline 2 (with Hicap or better yet, Supercap) not "high end" enough for you??  Match it with the right 'phones and it's rather awesome, and very "naim"...

Posted on: 09 February 2018 by Richard Dane

p.s. With an NDS in there, there's no point in adding an extra DAC such as in the Mojo.  Even my Hugo isn't as engaging as using a Headline from the pre-amp. Just go for a the best straight headphone amp you can afford.

Posted on: 09 February 2018 by Peter1480

 If you want a Naim sound try a Schiit mjolnir 2 on the tape loop they sound stunning and you can tube roll to perfect the sound to your own pref, balance and SE

Posted on: 09 February 2018 by feeling_zen
Richard Dane posted:
fathings cat posted:

...Shame Naim never developed a high end headphone amp......

Gary

Gary, is the Headline 2 (with Hicap or better yet, Supercap) not "high end" enough for you??  Match it with the right 'phones and it's rather awesome, and very "naim"...

Indeed. A HiCapped HeadLine is something to behold. There are those that whine about the HeadLine. I'd would counter that there is no such thing as a Naim headphone amp called a Headline. There are HeadLine/NAPSC, Headline/FCXS, Headline/HCdr, and Headline/SCdr. Which are all different headphone amps.

The RegaEar can drive harder cans easier than a Headline/NAPSC albiet with less fidelity, but the bump in current from the other power supplies changes the performance and drive capability entirely.