Digital Front Ends: Thoughts and the HiFace.

Posted by: Mr Underhill on 22 December 2009

I have been pondering on what to do about my digital front end over the last three years.

I felt that things are moving quickly, and decided to sit things out, since being burned in the DVDA/SACD debacle. As a result I have ended up with a series of HiRes files, which I have added to via various download purchases.

In the meanwhile BluRay does seem to have gained some traction and small numbers of audio discs have been produced using their HiRes formats.

So what should I purchase to help me to handle this collection?

This report is going into detail on one of the possible ways forward I have considered, that is to use an older XP based laptop using the MTech HiFace USB-SPDIF converter.

Before doing that I'd like to introduce some of the other options I have been cogitating, and the reasons why some have been rejected; if that is just TOO much information then please feel free to scroll down to Laptop/HiFace below!


Requirement
-----------

My sole aim is the BEST sound quality I can get from the digital format.

I do NOT care about convenience or communicating with low quality mass media, such as Spotify; I have other plans for that.

Ideally I would like to have a front end that can cope with a wide range of possible digital sources, that is:

DVD; DVD-A; SACD; CD; HDCD; BluRay; wav files; flac files etc.

But this is 'nice to have', 'must have' is:

wav files; flac files.

I can certainly buy the media and remove the files from all but one of these, BluRay.

I am not convinced about BluRay, having bought a recent Dodo of a format! I am very firmly sitting this one out.

As Bob Stuart wisely noted the existence of a hardware/software format means nothing if there is a dearth of actual software.


I would like it to output:

Possibly direct audio; SPDIF, at least 9624; Possibly HDMI.

However, this is purely for AUDIO. I will handle visual material in another way, so the 'must have' is:

spdif.


Current Front End
-----------------

The DVD standard allows the creation of DVDs with 9624 soundtracks, and so this is what I have done for playback via Naim DVD5 or Meridian 596 into a Benchmark DAC1 (see below).

I initially persuaded myself that the 596, which theoretically outputs 9624 via the spdif (I haven't tested the output), was better. Having listened to the 596 for a few weeks I switched back to the DVD5, and stuck.

Having phoned Naim they couldn't give me a definitive answer BUT they believe that the spdif outputs:

CD Source: 16bit, 44.1KHz
DVD Source: 16bit, 48KHz.

This sounds very good. Good enough that I can go without feeling the desperate need to play vinyl during listening sessions, playing back through:

Benchmark DAC1 > EAR864/EAR534 > Living Audio Auditorium IIs.


Possible Front Ends
-------------------

Oppo BluRay:
At one time this looked like a really effective way of accessing a range of digital media, not just physical media, that is: BluRay; DVD; DVD-A; SACD and CD; but also files. However, Oppo appear to have lobotomised the USB interfaces, so that they can only access a limited number of file format types, and that doesn't include WAV or Flac.

The reviews appear to have been good, but the audio quality is not truly audiophile, and so I also considered the Modwright.


Modwright Oppo BluRay:
Thanks to natsc we have been able to get a view on this box, but:
1. It still has the network/file limitations;
2. I can't demo it before purchase;
3. If something goes wrong I have to send it back to the US;
4. Despite two emails to Dan I got no reply.


Mac Mini:
I got VERY close to buying one of these; and I still might.
Bottom line is that I consider this to be the heart of a multimedia setup, not audio.
I posted a thread on two Mini fora asking for mods that had been done to cut down on extraeneous daemons & drivers - and got no posts.
In the PC world there is a very active and ongoing series of debates about this topic wrt Windoze.
My feeling is that Mac owners are happy to upgrade the hardware, but leave OSX alone.
The first step has to be the cheapest option, giving me a benchmark against which to test this.
So, currently on hold peding the laptop/MTech experiment.


Dell Zerina HD:
As Mac Mini.
On hold.


PC Laptop:
Dell D820/MTech HiFace - see below.


CICS Player:
Really liked the look of this. One man's quest to get the very best out of Windows for audiophile playback.
He has: Built a minimal audio server; Hacked Windows back to the minimum; Modified the Julia sound card, to present a well received dedicated audio file player.

So, why not build one?
Well it is relatively cheap - approx £600, but I still can't listen up front, and £600 IS £600!

I enjoyed trawling Audio Asylum and following the thinking, especially wrt cutting back the swiss army knife that is any modern operating system. He had even experimented with the amount of physical memory to use, and come to a counter-intuitive empirical conclusion.

On Hold.


PS Audio Transporter:
A tad under three grand, so in no way cheap.
This box is not a server, in that it does not store music files. It reads them into a memory buffer and the passes them on to a DAC.
I think this is a good looking box that could be the answer for many people, I exchanged a number of interesting emails with them. One issue I asked about was why no BluRay reader? The answer was that they are not sure whether BluRay has a future, seeing direct download as a real competitor.

I currently have a Meridian 596 sitting in my rack. This uses FIFO in a similar manner, and it doesn't do that much for me with rock/pop music. I would need to audition this for an extended period to be convinced, and would still have to handle HiDef files by producing my own DVDs, which would rule out 192/24.
Definite NO.


Naim HDX:
I tracked this closely during development, when it was mooted to cost £2.5k, it was firmly in my 'to audition' list; at £4.5k it is NOT. I have listened to it a couple of times and consider it to be a beautiful piece of design, not a giant leap in terms of audiophile file handling - yet.
A definite NO.


Naim NS01:
If not the HDX why the NS01? Price.
I don't really like having computers in the living room! Having a convenient, well designed ripping machine that can access other files across a network IS a great idea, and the NS01 is more in my price bracket.
Possible.


Arcam MS01:
When I read about this box I thought this might well be for me. Saw one on sale for £1200 and got a bit excited, there were just a couple of things I needed to find out.
I phoned there 'technical support', who then opened the manual, which I had already checked via the internet, and told me they didn't know as it wasn't in there - hopeless.

The questions were:
1. What is the spdif output? and
2. Can I replace the internal HDDs with SSDs.

I eventually found the answer to (1) in a cached web-page = 44.1KHz / 16 bit. So that ended that.

Definite NO.


Middleware
----------

Benchmark DAC1:
I bought this box when they were still an internet fora hit. I compared one to a Chord DAC64 I had on loan, and decided they were comparable in quality - but one was a third the price of the other!
I do think the audio quality is very high, and that I haven't heard the best from it yet.


NAIM DAC:
To be auditioned as soon as possible, and this is my possible Spotify conduit!


Dell D820 / MTech HiFace
------------------------
I have an old Benchmark DAC1, and so I have no USB input; I have therefore been tracking USB Spdif convertors for years; and considered a number for purchase, but demurred. Why? I wanted full 192/24 if possible.

Having read about the HiFace MTech I really wanted Linux drivers, but felt unable to wait; and so have borrowed one via Purite Audio, and my wife is buying it for me for Christmas. Which probably short-hands this review!

The DELL D820 is an old laptop that has been gathering dust under my bed for months. It is a dual cpu T2600 with 2GB of RAM and an 80GB HDD.

The XP build was standard and so I used the instructions on the CICS CMP2 site to strip it down to the bare minimum: No network; Native screen resolution, that is no processing overhead; Every service stopped but two.

I loaded up Foobar2000 and added the kernel streaming DLL.

I loaded the HiFace drivers and plugged in the widget, which was loaded up, and then set the Foobar2000 output options as directed.

Having completed this I played Hotel California, and was gob-smacked. This is a 9624 file.

Having listened I reconnected the DVD5 and replayed the DVD. There was NO DOUBT, what I was hearing was better controlled more resolved base. Better detail. Better resolved music elements.

So, I was hearing a HiRes file properly for the first time! Well, err .....no!


HiRes -vs- LowRes
-----------------

Having been wowed I thought I'd try a standard flac file, and so used sound-juicer, a standard ubuntu install, to rip my CD of Jools Holland's 'Best of Friends'.

Now this is a CD that I recently bought, and fell in love with, it is great, really - buy it!

I played the CD through the DVD5 and the moved to the flac file; the step up in quality was equally apparent!


Ideally I would like to test a HiDef file with a LowDef file of the same recording mixed in the same way - so that the ONLY variable is the data rate; but HOW can you do that?

Well, as it happens I can.

On Sunday (20/12) I recorded my Church Choir as we sang our Carol Service, I recorded this via my digital recorder at 9624.

I then used Audacity to scale the files back to 44.1KHz 16bit.


The Listening Test
------------------

Well - I can't tell any difference! I asked my eldest to have a listen, and she thought the 44.1 track was clearer; BUT, these tracks are a small choir plus an electronic piano.

So, does this threaten the primacy of my LP12/Aro/Geddon/Dynavector? No. Not that the LP12 wins hands down, but the positives of the digital front-end tend to be HiFi, whereas the LP12 is music.

Conclusion
----------

I am DEEPLY impressed by an old laptop + the HiFace MTech, I am listening to it at the moment.

......and I'm looking forward to demoing the Naim DAC!


M
Posted on: 22 December 2009 by likesmusic
How can you get the data off an SACD?
Posted on: 22 December 2009 by Mr Underhill
Good point, well made.

No I can't. That was why I was considering the Oppo, but didn't remove it from the list when I cut & paste.

Shows you're awake!

M
Posted on: 23 December 2009 by pcstockton
quote:
Originally posted by likesmusic:
How can you get the data off an SACD?


It isnt that difficult. Best be discussed elsewhere I think though. You can encode to 24/96 with the proper gear. And they sound great.
Posted on: 23 December 2009 by Aleg
quote:
Originally posted by pcstockton:
quote:
Originally posted by likesmusic:
How can you get the data off an SACD?


It isnt that difficult. Best be discussed elsewhere I think though. You can encode to 24/96 with the proper gear. And they sound great.


You only can get the 16/44.1 off if it is a hybrid SACD.

You can't (digitaly) touch the DSD-stream directly.

The only thing you can do is to play the DSD-stream to analogue output, then capture it again and digitise it into prefered sampling.

-
aleg
Posted on: 23 December 2009 by james n
Excellent write up and a good summary of the various options.

Cheers

James
Posted on: 24 December 2009 by Mr Underhill
Thx James,

Busily ripping CDs!

First time I've been able to easily follow all the lyrics in Les Mis during the duets, trios and quartets singing.

The quality of the base is fantastic!

I'm going to do some more tests on HiRes -vs- CD quality - I WANT there to be a difference.

M
Posted on: 24 December 2009 by Eloise
quote:
Originally posted by Aleg:
quote:
Originally posted by pcstockton:
quote:
Originally posted by likesmusic:
How can you get the data off an SACD?


It isnt that difficult. Best be discussed elsewhere I think though. You can encode to 24/96 with the proper gear. And they sound great.


You only can get the 16/44.1 off if it is a hybrid SACD.

You can't (digitaly) touch the DSD-stream directly.

The only thing you can do is to play the DSD-stream to analogue output, then capture it again and digitise it into prefered sampling.

-
aleg

or can get one of the few adapted devices which will have a PCM stream tapped from between DSD to PCM converter and the DAC. Or get a HDMI to SPDIF converter that will tap the LPCM stream.

As for the OP: have you considered Meridian Sooloos?

Eloise
Posted on: 24 December 2009 by Hook
quote:
Originally posted by Mr Underhill:
Good point, well made.

No I can't. That was why I was considering the Oppo, but didn't remove it from the list when I cut & paste.

Shows you're awake!

M


Mr. Underhill -

Have enjoyed my Oppo BDP-83 for multi-channel BD and DVD movies, but found it lacking for music.

There are now two "official" upgrade options: the Oppo Special Edition and the NuForce Special Edition. They look like decent upgrades for multi-channel music, but very strong upgrades for stereo.

There are 75+ pages of discussion and owner reviews at:

http://www.avsforum.com/avs-vb...11&highlight=nuforce

The upgrades are getting almost universal praise, and by many with high-end systems. You will also see that Dan (Modwright) is just one of the many options for modding this platform.

Have ordered the Oppo SE for my two-channel Naim/Harbeth setup, and expect to see delivery before New Year's. My plan is use the stereo analog outs for SACD and DVD-A, and the Toslink out (to the Naim DAC) for CD as well as downmix'ed BD.

Good luck with your source selection(s)!

Hook
Posted on: 25 December 2009 by Mr Underhill
Thx Hook,

I will be probably belooking to move to BluRay in due course, at that time I will be looking at the Oppo very seriously.

I think it is a real shame they have not made the handling of HiDef files poss via the USB - that could make the box the centre of a media handling solution.

Thx for the link, I'll have a gander.

Happy Christmas.

M
Posted on: 26 December 2009 by js
Haven't tried the Oppo but suspect it a nice vid piece. The upgrades aren't recommended for dig out though they probably have an effect. I haven't cared for the ESS DAC in anything I've heard it in but you can't always point to the DAC in these situations so who knows. It's probably better than stock in 2 ch and the multi channel bit may be VG for the purpose.
Posted on: 26 December 2009 by Hook
quote:
Originally posted by js:
Haven't tried the Oppo but suspect it a nice vid piece. The upgrades aren't recommended for dig out though they probably have an effect. I haven't cared for the ESS DAC in anything I've heard it in but you can't always point to the DAC in these situations so who knows. It's probably better than stock in 2 ch and the multi channel bit may be VG for the purpose.


Hi JS -

Just curious -- what other ESS Sabre 32 DAC-based platforms have you heard?

I know it is in the $11k Simaudio Moon 750, which our Tonepub liked:

http://forums.naim-audio.com/e...8019385/m/4572936727)

But like you said, the DAC is only a minor contributor to the overall sound of a system.

Hopefully the BDP-83 does well as a Toslink transport since that will be my primary use. Did read in an AVS post that it measured at 176.2ps for audio jitter (but have not seen the original source, and the poster did not say whether this was spdif or hdmi).

Figured it was worth the $300 upgrade to find out, and (if nothing else) get the most out of my smallish SACD/DVD-A collection.

At $899 new, it is hard to resist a box that appears to punch so high above its weight. With the many options for modding, I see it as the Rega P3-24 of universal disc players.

Hook
Posted on: 26 December 2009 by js
They've lacked a bit of solidity and prat but I'd rather not say which even though I don't carry. Perhaps they were just not great utilizations and my comment inappropriate as it relates to the Oppo. I think you certainly have the right ideas for usage. Let us know. Smile
Posted on: 26 December 2009 by Mike-B
Hi ghook2020, how iz it in the Land of Many Waters,
I was just talking to an old buddy in Lakeville, it sounds like you have the usual balmy weather this week. barbeque on the lake maybe ?? Winker
Used to work for a cmpy on West 90th, just 1/2 a block from Lyndale

Happy listening
Posted on: 26 December 2009 by Hook
quote:
Originally posted by Mike-B:
Hi ghook2020, how iz it in the Land of Many Waters,
I was just talking to an old buddy in Lakeville, it sounds like you have the usual balmy weather this week. barbeque on the lake maybe ?? Winker
Used to work for a cmpy on West 90th, just 1/2 a block from Lyndale

Happy listening


Hi Mike-B -

Thanks for the empathy -- always good to hear from an Arctic ex-pat!

Like the old song says, the weather outside is indeed frightful. Not too bad being snowed in though. Plenty of Newcastles in the fridge. And the UPS guy (brave soul that he is) somehow made it up our street today along with half a dozen bargain basement eBay records. The last one just came off the Nitty Gritty, and am now looking forward to an evening of musical time travel!

Hook
Posted on: 28 December 2009 by secret gardener
quote:
MTech HiFace


I hope that my exploration of the black art of digital replay is of use.

For around three years I soldiered on with an Arcam MS250, and whilst I was happy with the sound, particularly through a Music Fidelity Tri-Vista DAC I found the integrated software to be inflexible and vowed to avoid something similar. So no HDX or PS Audio solutions (when they finally get around to selling the complete streaming package in the UK)

My quest was to find a hardware solution that would embrace the J.River Music Center software that has become my preferred library manager.

I started with the storage box first acquiring a Ripnas Statement which sits silently in my hifi rack even with the conventional hard drive option.

By adding J.River to the onboard software I am steadily re-ripping my files to flac, having found the transfer on wav files origionall on the Arcam, but with added tagging a slow bind.

The addition of your preferred solution, namely a MTech HiFace into one of the usb connections and out into the s/pdif input of the Tri Vista DAC and I have music and no computer in the room.

The Ripnas is usually headless so I use an Asus netbook to control the J. River selection. Playlists are fully functioning and I am happy with the solution.

The only snags were the intrusion of Widows kernel mixer. The importer offers instant solutions for the kernel mixer requirements of Winamp, Foobar etc but as J River Media Center natively supports ASIO, I had to search around for an ASIO wrapper.

I quickly found and installed ASIO4ALL which has done the job and avoids the dreaded Widows kernel mixer giving a vast improvement over Direct Sound. The result is really excellent.

There were some setup issues using Windows Remote Desktop but the excellent and free VNC viewer allowed me to complete the task.

So I have the library manger I wanted with full playlist and album control and the s/pdif cable will plug straight into the new Naim dac, overcoming the strange head-in-the-sand usability versus purity of sound.

I think Keith Cooper of Purite Audio will be ordering the HiFace by the container if it works for others as it does for me. And all for £100


Paul
Posted on: 28 December 2009 by js
Have you tried 24/96 material. I have heard of issues when trying to play HiDef via ASIO4all. It is basically a generaic kernel wrapper for ASIO but is adding another layer. Perhaps not optimum but bit correct. Seems like ASIO or direct Kernel in XP and MAC or Kernel and WASAPI exclusive in Vista/7 are preferred. Haven't tried it yet but ASIO in Vista/7 is also layered with Wasapi and is no longer as direct.
Posted on: 28 December 2009 by secret gardener
No I have not tried Hi Def files yet but I will check this and get back to you with my findings

Paul
Posted on: 29 December 2009 by js
Here's another kernel based USB ASIO driver that doesn't use usbaudio.sys. protocals and can do higher bit rates regardless of OS. ASIO4all is not a true ASIO but it's been reported to be bit perfect at lower bit rates. I haven't liked it as much as dedicated ASIO when I tried it in the past. This should sound better if it works in your setup. Costs a bit but trial available. http://www.usb-audio.com/download.html
Posted on: 29 December 2009 by Mr Underhill
quote:
Originally posted by secret gardener:
... overcoming the strange head-in-the-sand usability versus purity of sound.
Paul


Hi Pual,

Thx for the observations; I have also been looking at the RipNAS.

Bottom line for this post is that I want to listen to how good I can get the music; a control against which I can gauge other solutions.

Once I have done this I can then start to reintroduce some usability, and see whether it effects the sound quality.

M
Posted on: 29 December 2009 by secret gardener
[/QUOTE] Here's another kernel based USB ASIO driver that doesn't use usbaudio.sys. protocals and can do higher bit rates regardless of OS. ASIO4all is not a true ASIO but it's been reported to be bit perfect at lower bit rates. I haven't liked it as much as dedicated ASIO when I tried it in the past. This should sound better if it works in your setup. Costs a bit but trial available. http://www.usb-audio.com/download.html

Thank for the link js. I will organise a comparison at the weekend and post back to help others who may be thinking of a similar route


quote:
Once I have done this I can then start to reintroduce some usability, and see whether it effects the sound quality.


I too would like the best sound possible but with the Naim dac having no ethernet cable input or fully functioning usb input I was experimenting with a usb to s/pdif solution.

It is a bonus that my present solution will allow the Naim to be plugged in with just a cable swap. And no costly streaming box (at least not at this stage)

Time for an audition, I think

Paul
Posted on: 29 December 2009 by Mr Underhill
Here is an interesting post:

cPlay

The poster slim.a is mentioning the different ways for streaming data out to the HiFace, and mentions the cPlay application that was written and designed for the cics player I mention above as one of my options.

I have just loaded it up, together with it's cue sheet creator/manager apps. I have then loaded up asio4all and am currently listening to this rather than foobar2000.

I will be reporting back - but I am not yet convinced that everything is set up correctly, although it does sound good.


I have also taken a 192-24 file and down sampled it to CD quality to do an AB comparison, to continue the experiment I mentioned above. I will also report back on this.

M
Posted on: 06 January 2010 by Asenna04
Has anyone looked into using the OliveHiFi front ends to feed the DAC. They have a number of options: Olive 4, Olive 4 HD and Olive 2. If an external NAS (with DLNA/uPnP software) can hold the music files then I think the Olive 2 on its own will work with the DAC.

I quite like the idea of controlling the music with their iPhone/iTouch App (iMaestro).

I would like to know if anyone has considered this and looked in more details on this option.

The Naim DAC does open up a whole new world of options, very exciting!
Posted on: 07 January 2010 by adymcd
quote:
Originally posted by Asenna04:
Has anyone looked into using the OliveHiFi front ends to feed the DAC. They have a number of options: Olive 4, Olive 4 HD and Olive 2. If an external NAS (with DLNA/uPnP software) can hold the music files then I think the Olive 2 on its own will work with the DAC.

I quite like the idea of controlling the music with their iPhone/iTouch App (iMaestro).

I would like to know if anyone has considered this and looked in more details on this option.

The Naim DAC does open up a whole new world of options, very exciting!


This is the system I am thinking of using.

RipNas > Olive 2 > Ndac

The only problem so far is the company. The USA trades separate to the UK according to Chris in the States. They have no UK distribution and the UK contact a guy called Claus has answered either of my emails.
Posted on: 07 January 2010 by secret gardener
quote:
This is the system I am thinking of using.

RipNas > Olive 2 > Ndac

The only problem so far is the company. The USA trades separate to the UK according to Chris in the States. They have no UK distribution and the UK contact a guy called Claus has answered either of my emails.


I came here to find thoughts on the Ndac to add to a Ripnas Statement. Originally I had assumed a Linn DS for streaming but so far only the Klimax sounds good enough and I am not planning to take up bank robbery to fund it.

Having lashed out the modest £100 to obtain the MTech HiFace USB-SPDIF converter refered to here I find I do not need another box.

I run JRiver 14 on the Ripnas for its library management tools and this will output directly into the Hi Face and on through its s/pdif output to my current MF Trivista dac.

The JRiver software is set to play from memory and I impressed with its ability to act as a UPnP client. The current control point is an Asus netbook but there are apps for controling JRiver from iphone/itouch.

And if the Ndac auditions well then I just swap the digital cable feed from the Hi Face.

Worth looking at if you are considering Ripnas

Paul
Posted on: 07 January 2010 by rich46
quote:
Originally posted by secret gardener:
[QUOTE]This is the system I am thinking of using.

RipNas > Olive 2 > Ndac

The only problem so far is the company. The USA trades separate to the UK according to Chris in the States. They have no UK distribution and the UK contact a guy called Claus has answered either of my emails.


I came here to find thoughts on the Ndac to add to a Ripnas Statement. Originally I had assumed a Linn DS for streaming but so far only the Klimax sounds good enough and I am not planning to take up bank robbery to fund it.

Having lashed out the modest £100 to obtain the MTech HiFace USB-SPDIF converter refered to here I find I do not need another box.

I run JRiver 14 on the Ripnas for its library management tools and this will output directly into the Hi Face and on through its s/pdif output to my current MF Trivista dac.

The JRiver software is set to play from memory and I impressed with its ability to act as a UPnP client. The current control point is an Asus netbook but there are apps for controling JRiver from iphone/itouch.

And if the Ndac auditions well then I just swap the digital cable feed from the Hi Face.

Worth looking at if you are considering Ripnas

Paul[/QUOTE

cyrus latest transport is stunning good via the naim dac.

ripnas /sonos controlled by iphone via optical to naimdac is extremely good, to have 1900 cds on tap quickly is a bonus.

thought optical was better than cable for the network/ripnas.

boring ripping cds