DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 93 - diyAudio
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Old 1st December 2011, 06:16 AM   #921
erin is offline erin  Australia
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Quote:
Originally Posted by Bjarnevip View Post
You don't think it's the Obelisk 3X that is the problem(I only use the powerAmp part of it)?

/Bjarne
Ion Obelisk

If this is your amp, I think it is a very nice simple (in a good way) circuit that has minimal parts to interfere with the sound quality. As long as appropriately efficient speakers are partnered with it to provide adequate SPL during dynamic passages of music, and does not suffer from voltage rail sag under these circumstances, then it seems fine to me. I find the small signals are slightly more important to hi fidelity than the large signals (assuming the power amp is of good design). I have not heard your amp.

I trust you have upgraded all small capacitors inside it with film foil type, and all small electrolytics are fresh and good quality, and your DC blocking caps are film type?

Last edited by erin; 1st December 2011 at 06:20 AM.
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Old 1st December 2011, 07:40 AM   #922
Reality first!
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Quote:
Originally Posted by Bjarnevip View Post
Have you tried a Canare LV77 cable.
It has been recomended over the Belden, at a danish forum so that why I have chosen it
No, I didn't.

Quote:
Originally Posted by erin View Post
Why others would suggest a cable as the magic bullet astounds me.
...
The digital cable will 100% not be the reason for not hearing a difference. The issue lies elsewhere.
Erin,

  • in my setup the difference between the two Belden cables I initially used is HUGE.
  • I'm not saying that the cable is a magic bullet.
  • Since I'm sure the DAC sounds better than most output stages, I've suggested to check other components in the chain and cables are among them...
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Old 1st December 2011, 08:04 AM   #923
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Can I drive the poweramp directly from my DAC without the preamp(If I use my Squeezebox touch digital volume)?
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Old 1st December 2011, 08:11 AM   #924
erin is offline erin  Australia
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You can do this and some people do, but you must be VERY careful to turn the volume down before playing a song, and not let your finger slip when adjusting the volume.

And it would be good to see if the volume works with SPDIF output prior to connecting direct to your amp.
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Old 1st December 2011, 08:36 AM   #925
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I've just completed my AK4396 DAC. Unlike many here, I decided to keep the manufacturer's suggested LPF (modified to suit the 4396), changed the voltage rail caps, and the signal path caps, and upgraded the voltage regs. Didn't change anything else, as I'm not much of a believer in resistors sounding different

I fed the output into a buffer pre-amp and then to an ICEPOWER 125ASX2 module, driving my old Linn Keilidh speakers. Source was a SONOS ZP90 streaming lossless audio files.

To say that I'm blown away would be an understatement. The low-end current delivery of the combo is impressive (speakers aren't the easiest to drive) with solid bass, even at low volumes. The handling of cymbals and high frequencies is sublime. I'm exceptionally happy with the results, and now just need to box it all up and clear the dining table of wire clippings
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Old 1st December 2011, 06:49 PM   #926
YohY is offline YohY  United Kingdom
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Default The upgrade path...

Quote:
Originally Posted by Bjarnevip View Post
I am deeply disappointed
I have listened and listened, my wife have been listening, my son with young ears have listened. We can not tell the difference between SBT analog output vs. this DAC.
Either there is a plug in my stereo or else this DAC is a "fart in a horn lantern".

My setup:
Homebuild PreAmp with opamps
Ion Systems Obelisk 3X with XPAK

/ Bjarne
Hi Bjarnevip - I can confirm for sure that the Ion Systems (Built here in Wales if I remember correctly!) gear is not on par with the level of quality that this dac can give out.
Once upon a time I was loathed to go the way of valve amplification, but I have proven beyond doubt that the kind of finesse that this dac can hint to will not be revealed by your solid state Output stage.
Try an pick up a cheap valve amp from ebay - or even have a loan/listen to one if you can access one. Your preamp upgrade should work well in this configuration.

Hope this helps,
-Andy-
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Old 2nd December 2011, 06:16 AM   #927
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Thank you all
Thus a small summary of the advice I have received:

* Try another digital cable
* Replace your pre amp
* Replace your power amp
* Replace your speakers
* Stay where you are - you can not tell the difference between SBT and DAC
* Go into tubes

Am I confused no way

I think I checked it with a friend

/Bjarne
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Old 2nd December 2011, 08:20 AM   #928
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The main thing is that you enjoy listening to music on your system
Not what it sounds like when you listen to it critically
If you can try listening to the DAC on other systems you might hear a difference
But if you enjoy music on yours then that's the main thing
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Old 2nd December 2011, 08:17 PM   #929
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Quote:
Originally Posted by Bjarnevip View Post
Thank you all
Thus a small summary of the advice I have received:

* Try another digital cable
* Replace your pre amp
* Replace your power amp
* Replace your speakers
* Stay where you are - you can not tell the difference between SBT and DAC
* Go into tubes

Am I confused no way

I think I checked it with a friend

/Bjarne
hi Bjarnevip,

I think you have already learnt a good lesson. This is a big forum with lots of advise and views also the amount of variables is enormous. Just pick (or reject) the ones that suit you.

regards
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Old 6th December 2011, 05:55 AM   #930
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Quote:
Originally Posted by Bjarnevip View Post
Can I drive the poweramp directly from my DAC without the preamp(If I use my Squeezebox touch digital volume)?
I have now tried this, but it didn't make any difference
In my ears they still sound the same

/Bjarne
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