Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Best DAC-chip out there?
Best DAC-chip out there?
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th January 2018, 05:29 PM   #31
Kurt von Kubik is offline Kurt von Kubik  Denmark
diyAudio Member
 
Kurt von Kubik's Avatar
 
Join Date: Feb 2009
Location: Viby, Denmark
Send a message via MSN to Kurt von Kubik
The best measuring DACs out there are at this time ESS 9038 and AKM 4497.
Both are pretty expensive ones.
What you should consider is the implementation, and how you you are going to do it.
The ESS chip is a native I out chip, which also can be used as a U out chip, bit with less stunning performance.
And this is actually a key point, as the ESS chips delivers quite a lot of current, because it internally consists of 4 DACs per channel.
The current output is thus pretty hot, which makes the I/V stage a challenge.

On the other hand the AKM is a native U out DAC chip, which do not need any I/V conversion stage at all.
It hardly needs any amplification, just buffering and a little filtering.
This makes the AKM easy to implement,
But the AKM 4497 has no built in up-sampler as the ESS chips has, so if you want to attenuate jitter, youŽll have to up-sample externally.
You also need a receiver chip to get from S/P/DIF to I2S.
And finally I think you need to do a clock as well.

So there we are.
__________________
Just do it
  Reply With Quote
Old 7th January 2018, 09:19 PM   #32
Joseph K is offline Joseph K  Hungary
diyAudio Member
 
Join Date: Dec 2004
Location: gran sasso
Quote:
Originally Posted by zenelectro View Post
George,

What sort of hardware are you running?

T

Dear Terry,

We have / have access different dacs. Here I have been talking about a Mirand dac, with mods. The combination of the Mirand modded (and with new output shield + SITO discrete opamps) and the usual EMU soundcard performs quite well..
AK4490 USB Dac with dsd support.

The mods were aimed at getting better clock performance **(with the old version) plus some.
The newer version got a factory ironing with very nice result..

** (better clock: swapped in NDK SDA clocks and new clock supply)

ciao, George

Last edited by Joseph K; 7th January 2018 at 09:22 PM.
  Reply With Quote
Old 8th January 2018, 03:18 AM   #33
zenelectro is offline zenelectro  Australia
diyAudio Member
 
zenelectro's Avatar
 
Join Date: Sep 2009
Quote:
Originally Posted by Joseph K View Post
Dear Terry,

We have / have access different dacs. Here I have been talking about a Mirand dac, with mods. The combination of the Mirand modded (and with new output shield + SITO discrete opamps) and the usual EMU soundcard performs quite well..
AK4490 USB Dac with dsd support.

The mods were aimed at getting better clock performance **(with the old version) plus some.
The newer version got a factory ironing with very nice result..

** (better clock: swapped in NDK SDA clocks and new clock supply)

ciao, George
Sorry George, I meant to say computer hardware. I know HQP at DSD256
is resource hungry and was wondering what level of hardware is required to
achieve seamless playback.

Yes the Mirand DAC looks really good and it's a great idea to optimize for the
one format (DSD256). I'm sure it sounds VG.

cheers

Terry
  Reply With Quote
Old 8th January 2018, 04:02 AM   #34
Joseph K is offline Joseph K  Hungary
diyAudio Member
 
Join Date: Dec 2004
Location: gran sasso
Ok.
I'm using an i7 7500 mobile processor based laptop. It's definitely not a power champion. I can not do the real max: at 256 only the 2s version of the xtr filter. Stereo.
The system is Audiolinux. I had to do further optimization on it for glitch free operation.
Today I would go for a faster setup but: with this processor there are no power dissipation problems even in constant max power conditions; it somehow shows that not only scary monster setups are usable.
it is an absolute minimum requirement - but works

Ciao, George
  Reply With Quote
Old 8th January 2018, 05:28 AM   #35
benproiii is offline benproiii  United States
diyAudio Member
 
Join Date: Aug 2010
Location: New York
The DAM1021!!
  Reply With Quote
Old 8th January 2018, 11:21 PM   #36
zenelectro is offline zenelectro  Australia
diyAudio Member
 
zenelectro's Avatar
 
Join Date: Sep 2009
Quote:
Originally Posted by Joseph K View Post
Ok.
I'm using an i7 7500 mobile processor based laptop. It's definitely not a power champion. I can not do the real max: at 256 only the 2s version of the xtr filter. Stereo.
The system is Audiolinux. I had to do further optimization on it for glitch free operation.
Today I would go for a faster setup but: with this processor there are no power dissipation problems even in constant max power conditions; it somehow shows that not only scary monster setups are usable.
it is an absolute minimum requirement - but works

Ciao, George
Thanks George,

Right..... so it looks like I better hardware up!

cheers

Terry
  Reply With Quote
Old 8th January 2018, 11:47 PM   #37
analog_sa is offline analog_sa  Europe
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Cascais
Best DAC-chip out there?
The idea of converting PCM to DSD, on top of that in real time appears at the very best strange. Which would still be fine if it sounded any good. To me it does not.
  Reply With Quote
Old 8th January 2018, 11:51 PM   #38
Markw4 is offline Markw4  United States
diyAudio Member
 
Join Date: Jul 2016
Location: California
Quote:
Originally Posted by analog_sa View Post
The idea of converting PCM to DSD, on top of that in real time appears at the very best strange. Which would still be fine if it sounded any good. To me it does not.
But, you're not using his DAC. Maybe you would like the sound of it?
  Reply With Quote
Old 9th January 2018, 10:19 AM   #39
Joseph K is offline Joseph K  Hungary
diyAudio Member
 
Join Date: Dec 2004
Location: gran sasso
Quote:
Originally Posted by analog_sa View Post
The idea of converting PCM to DSD, on top of that in real time appears at the very best strange. Which would still be fine if it sounded any good. To me it does not.
May I tease You a little bit?

Given that with only one sentence You have just eliminated 99% of the present audio market.. May I ask what kind of conversion does not do it?

Would like to point at my past involvement: converters at my disposal are:
1540; 1543; 1541A; PCM58; PCM63x; PCM1704; AD1865

dacs with ESS9018, 9023; CS4396; cs4398; akm 4396;

Of these I prefer my present dac with 4490 in the stated modality...

You are aware of the fact that what I am stating is that instead of doing PCM do DSD conversion in hardware, in a chip, in highly limited conditions, digital and analog sections cross-contaminating -- I vote for a more separated, cleaner, and limitless and future proof solution?

Ciao, George
  Reply With Quote
Old 9th January 2018, 08:09 PM   #40
MarcelvdG is offline MarcelvdG  Netherlands
diyAudio Member
 
Join Date: Mar 2003
Location: Haarlem, the Netherlands
There are many chips that do not use a single-bit sigma-delta modulate anywhere.
  Reply With Quote

Reply


Best DAC-chip out there?Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Chip amp PCB esprit Parts 4 7th September 2017 08:52 AM
FS: CS4397-KS 24-Bit D/A Converter chip + CS8416 192kHz Digital Audio Receiver chip acccruz Swap Meet 0 16th December 2014 08:18 PM
Is there a Class-D amplifier chip that does it's own D/A on chip? gripracer Class D 10 23rd February 2011 05:52 PM
need help with this chip Irwind Kee Chip Amps 6 29th August 2010 04:21 PM


New To Site? Need Help?

All times are GMT. The time now is 02:37 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki