hey synergo

Ive got the same idea here (Holland) its easy to get this adapter/psu of the
delta 1010 and it cost around 25 euros.
do you know if its got the same plug? i guess its the same.
pls let me know if you bought one.

grteetings
Peter


--- In M-Audio_SuperDAC_2496@yahoogroups.com, "synergo2000" <synergo@...> wrote:
>
> Hi all,
> I checked all the mods listed here, looking for the better power
> supply, but was surprised that neither in the posts,nor in the FILES
> section there is no mention of the M-Audio Delta 1010 power supply.
>
> The original Delta 1010 PCI 8-channel card with the external
> interface came with the Ontop Model A60942DC AC Adapter
> Class 2 transformer
> Input 120 VAC 60 Hz 50 W
> Output 9 VAC 3500 mA
> UL, SAC
> Made in China
>
> M-Audio still offers the replacement unit for it on their website
> http://www.m-audio.com/products/en_us/PowerSupply9vAC35A-main.html
> The picture does not appear identical to the Ontop Adapter - the
> replacement adapter looks smaller.
> The price is USD 19.95 MSRP - which is cheaper than Stancor model STA-
> 5790 - currently $24.49 at http://www.alliedelec.com/Search/
> ProductDetail.asp?SKU=928-
> 9919&SEARCH=&MPN=STA%2D5790&DESC=STA%2D5790&R=928%2D9919&sid=476DA5007584617F
> RadioShack discontinued its adapter, and so did Hosfelt in respect to
> the Atari adapter.
>
> The Delta 1010 has a rather respectable status amongst the proaudio
> groups. Although it has a serious design fault (it has the clock
> located on the pci card, separated from the 1-rack base by the 6 ft
> DB-25 cable), the converters on it are superior to Superdac - AK5383
> converter for A/D, and the AK4393 for D/A. Because the card has been
> designed as a pro audio gear, its power supply unit, theoretically
> speaking, must have had been built according to higher standards, and
> more of a heavy duty (to provide 8 channel conversion)- comparing to
> the SuperDac.
>
> Had anybody on the forum ever tried the Delta 1010 CPU on SuperDac?
>
> Alex
>

--- In M-Audio_SuperDAC_2496@yahoogroups.com, Job Chithalan <job_cf@...> wrote:
>
> Hi Joe
>  
> Thanks for your reply but the link is not working.
> Also could you tell me about any mods you have done and the price?
>  
> Thanks
>
I posted some more pics in the Photos section (Joe's DAC). All the electrolytic
capacitors were replaced with Panasonic and Black Gate caps. The six 5534
op-amps were replaced with sockets, then I installed LME49710NA op-amps. Oh, and
the 1/4-inch TS jacks were replaced with Cardas RCA jacks.

--- In M-Audio_SuperDAC_2496@yahoogroups.com, "Job" <job_cf@...> wrote:
>
> Hi
>
> Some of you guys have done some great mods on SuperDAC 24/96.
> If you have moved on to pastures new and have no more use for your modded SuperDAC 24/96, please let me know.
>
> It will be fitted in a difficult to access location; so need to be very reliable.
>
> Thanks
>
I have more than one SuperDAC and could let one go to a good home.

Pictures here.

Hi

Some of you guys have done some great mods on SuperDAC 24/96.
If you have moved on to pastures new and have no more use for your modded
SuperDAC 24/96, please let me know.

It will be fitted in a difficult to access location; so need to be very
reliable.

Thanks

Thanks to knowledgeable contributors, there is a mine full of information who
are using and modding the SuperDAC 24/96. Hope that the many new members have
joined in the last few months find them useful.

As the original opamps were the bipolar NE5534s, wondered if anyone
can confirm that the LM6171 could also work fine in the Superdac?

This is following my single-ended channel imbalance, where I now
suspect the AD847 on the dodgy channel is indeed dead, and was
contemplating doing another wholesale replacement of the opamps.

Just an update if anyone still reads this group!

Last night I did some more testing, seems one of the 560pf caps in
front of the last resistors to the right-channel opamp was dead, so I
replaced that.

Power and signal inputs and outputs on both opamp pins themselves
seems fine, so the left opamp may not be dead after all.

Can't get a signal past the last 221R resistor on the left channel, so
maybe a bad joint here. Will replace it tonight.

Was referring to the TRS jacks, but thanks, I got it now.

Top (nearest edge) is ground, unconnected rear is ground. The other is
signal.

--- In M-Audio_SuperDAC_2496@yahoogroups.com, "mauricio rosas"
<maxlorenz24@...> wrote:
>
> Hi,
> Do you mean the XLR (balanced) connector?
> PIN 1 is ground and must be connected. PIN 2 is signal (+). PIN 3 is
signal
> (-).
> http://www.audiodesignline.com/howto/196603651
>
>
http://209.85.215.104/search?q=cache:St5lsP2JKpUJ:www.audiodesignline.com/howto/\
196604119+balanced+interfaces&hl=es&ct=clnk&cd=4&gl=cl&client=firefox-a
>
> In any case, follow the signal path with a multimeter from the
output pin of
> the opamp until it reaches the pin in  question. ;-)
>
> Regards,
> M
>
> 2008/5/16 hypercatabol <hypercatabol@...>:
>
> >   Hey guys, when replacing the PCB mounted connectors, there are 3
pins
> > - 2 at the rear and one at the front - which is the signal, and is it
> > ok to leave 1 ground pin unconnected?
> >
> >
> >
>

I have an un-modified Super Dac 2496 for sale. email: dan[no space]
foxley@...

Hey guys, when replacing the PCB mounted connectors, there are 3 pins
- 2 at the rear and one at the front - which is the signal, and is it
ok to leave 1 ground pin unconnected?

Hmm, think it's the TRS jack - sound is wobbling when I mess with the
jack. Was going to replace it anyway for an RCA - some day!

Eck, after about 2 years out of the hi-fi scene, I plugged in my half-
modded Superdac tonight and found the right channel was MUCH louder
than the left.

Don't have all my tools to hand but any suggestions on how to debug
this? I'm running with AD847s in placed of the original opamps.

To buy an off-the-shelf PSU have a look at
'Power Supply Units - Commercial Models' in the 'Files' section
New ones are difficult to find. You might find a used one.

But best to make one using a torridal transformer.
'PSU & Cable _ DIY Project' and 'PSU Wiring' in the 'photos' section
and
See 'PSU Wiring tips - PSU Wiring tips for DIY' in the 'Files' section

If you need clarification on anything, please feel free to ask.

--- In M-Audio_SuperDAC_2496@yahoogroups.com, rrojales <rrojales@...>
wrote:
>
> how do i upgrade the PSU ?
>
> On Mar 19, 2008, at 1:53 AM, bluemax_101 wrote:
>
> > The M-Audio SuperDAC 24/96 is no longer available to purchase new.
> > I have seen them come up for sale at internet forums and auction
> > sites.
> > They still are good value for money. Well worth using an uprated
PSU.
> >
> > Then there are many modes you can do. Some very knowledgeable
people
> > here and they have posted details in the Files, Photos and other
> > sections.
> >
> > --- In M-Audio_SuperDAC_2496@yahoogroups.com, "WSJOE" <wsjoe@>
> > wrote:
> > >
> > > Is Superdac 2496 is available for purchase?
> > >
> > > If so, how much and how is the performance for these guys after
a few years since fist came out?
> > >
> > > Where can I purchase this?
> > >
> > > wsjoe

The M-Audio SuperDAC 24/96 is no longer available to purchase new.
I have seen them come up for sale at internet forums and auction sites.
They still are good value for money. Well worth using an uprated PSU.

Then there are many modes you can do. Some very knowledgeable people
here and they have posted details in the Files, Photos and other
sections.

--- In M-Audio_SuperDAC_2496@yahoogroups.com, "WSJOE" <wsjoe@...> wrote:
>
> Is Superdac 2496 is available for purchase?
>
> If so, how much and how is the performance for these guys after a few
> years since fist came out?
>
> Where can I purchase this?
>
> wsjoe
>

Hello everybody.

I'd like to reclock my superdac and got the most figured out. One
downside is that it will only play on 44.1kHz after modification, but
that's fine with me.

The next things need to be done:

Make pin 23 of the cs8414 high so that fsync en sck become an input.
R25 should be taken loose from the cs8414. The new clock signals mclk,
lcrk and bick can be generated with an stable 11.289Mhz clock and a
74HC4040 frequency divider.

The only thing I'm a bit concerned about is pin 9 (dsf) of the ak4393.
I thought it should be low during CD playback, but it isn't. It should
run at normal speed right? (datasheet ak4393 page 10) My cd player
really puts out 44.1kHz!

Is Superdac 2496 is available for purchase?

If so, how much and how is the performance for these guys after a few
years since fist came out?

Where can I purchase this?

wsjoe

Since many of you may be using your SuperDAC 24/96 for audio
streaming, this article by Steve Nugent, a highly qualified and
experienced engineer could be of interest.

"Computer-Driven Audio - Is it Superior to Optical-Based CD Playback?"
http://www.positive-feedback.com/Issue22/nugent.htm

Topics explained include:
- Jitter
- Contributors to Jitter
- Pits in the CD
- Optical read head
- Master Clock in the Transport
- Transmission of S/PDIF format
- Digital cabling and optical conversion
- Optical conversion
- Recovery of the clock from the S/PDIF signal
- Noisy power and ground loops
- Computer audio methods
- Playing from the Hard-Disk
- How external computer converters minimize jitter
- Ripping and file compression
- Upsampling on the Computer

Summary

Computer-driven audio is adding new life to the CD format, providing
new methods to get even more performance from CD tracks. Those that
have discovered the performance and ergonomics advantages of this new
technology have found new joy in their music listening. It is
changing the way that we organize our music. Rather than remote
controls and shelves of CD's, you can have playlists in each genre of
only your favorite tracks that can play for hours without
intervention. The database organizes your music so you can quickly
find what you want to play, or build a new playlist for a party or
holiday. A laptop at your side can replace the remote control.
Individual tracks can be downloaded one at a time over the web,
saving you money and time.

Hi Mauricio,

Good to see you are now working with the Superdac again!

The longer settle time for the opamp, caused by the 1-pole filter
you placed behind the opamp is of no consequence. Nelson Pass has
done some research to find out the minimum "slew" time an amp should
have, and the slewtime for this very small capacitor has no real
influence. Actually, because the capacitors are not present anymore
in the loop-back it will be faster than the dac you had.

I am glad you like the sound!

I'm still busy building my Aleph X monoblocks. And I am busy with my
UGS modules. These are N-FET differential amplifiers that I will use
to replace my X-BOSOZ style Mosfet outputs I am using now in my DAC.

Greetings, Harry

P.S, are you already listening to Big Ben speakers?

Hi there,

I wanted to share my last mods and ask some questions...(Harry are you
there?)

First of all, my permanent quest for a better power supply led me to
the "TeddyReg", from Teddy Pardo at http://www.pinkfishmedia.net/forum/
This sounds even better than the ALW superregulator and it is a fun to
build. It is good for the analog section of the AKM chip (not so for
the digital section because it takes time to settle and it won't lock
on the digital signal immediately) and for the output section.

http://www.pinkfishmedia.net/forum/showthread.php?t=39990

Mine uses BC550/560 instead of JFET (hard to find). R1 and R2 sets the
final Vout. Just read the explanation and follow the formulas.
For 5V I used what I had on hand: R1=499R and R2=120R. I tested Vout,
with a 330R "load resistor" from out pin to ground. That make a 4,88V,
which is generally good (R1=505R makes a 5,05Vout). I used different
resistor values for the filter section. If anyone is interested I can
post them. Tantalum caps are easy to find at good prices on eBay. Good
X7R SMD caps are ubiquitous.

The next mod is almost free and very good sounding (thanks to
-ecdesigns- from DIYaudio.com ; visit his site
http://www.ecdesigns.nl/  ...and see his wonderful DACs )

It consists on a simple method to "compensate" the opamp's output with
noise manipulation. The exact explanation escapes me :-)  but the
execution is simple: solder a resistor between opamp's input
(generally pin2 to pin3 on single opamps) equal to five times the
value of the feedback resistor.

Look here for references:
http://www.analog.com/Analog_Root/static/techSupport/designTools/interactiveTool\
s/stability/stability.html

I am now using Harry's simplest filter (look at files) and the sound
is exactly as he describes. I use what I had on hand: C= 3,3nf and R=
1K97, for a low corner F of 24KHz. I am pleased with the sound but I
read that this high C makes a longer settling time for the opamp
(OPA627). How bad is that?

For all resistors it is recommended that you use metal film types,
which are less noisy than the carbon types.

I hope you like it. :-D

Cheers,
M

Hi all,
I checked all the mods listed here, looking for the better power
supply, but was surprised that neither in the posts,nor in the FILES
section there is no mention of the M-Audio Delta 1010 power supply.

The original Delta 1010 PCI 8-channel card with the external
interface came with the Ontop Model A60942DC AC Adapter
Class 2 transformer
Input 120 VAC 60 Hz 50 W
Output 9 VAC 3500 mA
UL, SAC
Made in China

M-Audio still offers the replacement unit for it on their website
http://www.m-audio.com/products/en_us/PowerSupply9vAC35A-main.html
The picture does not appear identical to the Ontop Adapter - the
replacement adapter looks smaller.
The price is USD 19.95 MSRP - which is cheaper than Stancor model STA-
5790 - currently $24.49 at http://www.alliedelec.com/Search/
ProductDetail.asp?SKU=928-
9919&SEARCH=&MPN=STA%2D5790&DESC=STA%2D5790&R=928%2D9919&sid=476DA5007584617F
RadioShack discontinued its adapter, and so did Hosfelt in respect to
the Atari adapter.

The Delta 1010 has a rather respectable status amongst the proaudio
groups. Although it has a serious design fault (it has the clock
located on the pci card, separated from the 1-rack base by the 6 ft
DB-25 cable), the converters on it are superior to Superdac - AK5383
converter for A/D, and the AK4393 for D/A. Because the card has been
designed as a pro audio gear, its power supply unit, theoretically
speaking, must have had been built according to higher standards, and
more of a heavy duty (to provide 8 channel conversion)- comparing to
the SuperDac.

Had anybody on the forum ever tried the Delta 1010 CPU on SuperDac?

Alex

--- In M-Audio_SuperDAC_2496@yahoogroups.com, "jamie_lutch" <yahoo@...>
wrote:
>
> hi guys, new to the group, i have a superdac for sale on ebay (item
> #110203261150), i thought some of you might be interested. Thanks for
> the interesting discussion on the various flavors of components!
>
Hi Jamie,
Welcome to the forum.
Is the SuperDAC thst you sre selling modded in anyway?

hi guys, new to the group, i have a superdac for sale on ebay (item
#110203261150), i thought some of you might be interested. Thanks for
the interesting discussion on the various flavors of components!

Hi Joe,

I found that the cheapest and best digital coax cable was a custom
made cable from www.bluejeancable.com comprised of the Canare 75ohm
phonos / bnc connectors and either Canare L-5CFB or Belden 1694A
cable. For a 2m cable the cost would be $15.75 excluding shipping.

I have used the company on numerous occasions, even though I live in
the UK, and they have always delivered. Worth a try for the cheap
price.

Personally I use the Canare phono & cable combo into the DIP (Digital
Interface Processor) and a balanced 110 Ohm AES/EBU Apogee Wyde Eye
into the SuperDac. I was considering using an Apogee Wyde Eye 75ohm
cable for connection from my CD to DIP but reports on the internet
commented that it was only a canare cable in disguise!

Hope this helps.


--- In M-Audio_SuperDAC_2496@yahoogroups.com, "joe_mansell"
<joe_mansell@...> wrote:
>
> There are two silver SuperDACs up for auction on eBay at this time.
> Search on "m-audio superdac" to see the listings.
> http://search.ebay.com/search/search.dll?&satitle=m-audio+superdac
>
> I am having a great time with my modified SuperDAC(LME49720A
opamps).
> I am using the coax input and find that the unit is very sensitive
to
> cable quality. I am currently testing a Monster Cable IDL100-2M
> Digital Coax Cable with good results in the first few hours of use.
>
> I would like to hear comments from other users regarding cables in
use
> and connected equipment.
>

There are two silver SuperDACs up for auction on eBay at this time.
Search on "m-audio superdac" to see the listings.
http://search.ebay.com/search/search.dll?&satitle=m-audio+superdac

I am having a great time with my modified SuperDAC(LME49720A opamps).
I am using the coax input and find that the unit is very sensitive to
cable quality. I am currently testing a Monster Cable IDL100-2M
Digital Coax Cable with good results in the first few hours of use.

I would like to hear comments from other users regarding cables in use
and connected equipment.