Did you expect it from such a simple DIY? 😀
The main advantage is that AD1862 never cause a fatigue to hearing even after a day of listening to various recordings. The fatique is well known in delta-sigma DACs ... but it is also recognizable with R-2Rs that use digital filters ... I call it "digital fatigue" 😀
Do an experimenting with different opamps 🙂
The main advantage is that AD1862 never cause a fatigue to hearing even after a day of listening to various recordings. The fatique is well known in delta-sigma DACs ... but it is also recognizable with R-2Rs that use digital filters ... I call it "digital fatigue" 😀
Do an experimenting with different opamps 🙂
Did you expect it from such a simple DIY? 😀
The main advantage is that AD1862 never cause a fatigue to hearing even after a day of listening to various recordings. The fatique is well known in delta-sigma DACs ... but it is also recognizable with R-2Rs that use digital filters ... I call it "digital fatigue" 😀
Do an experimenting with different opamps 🙂
I had the volume up at a nice level and when Bruce Springsteen came on, one of hos songs has a quite loud harmonica. I felt myself getting ready to wince, because most the time those types of sounds are shrill and fatiguing. Right when it would have been shrill, I notice it isn't, it leaves out the shrill part and just includes the nice harmonics, like in person.
NO, I did not expect this from this easy of a project, my wife appreciates it also, she noticed a very dramatic change. I turned the stereo off to watch football and she asked why I turned it off, that NEVER happens.
Thanks so much for this very nice project. I'll try some different opamps, I'm using NE5534 as the base, as soon as the rest come in.
Great how you described details in the sound. The Real Deal 🙂
Really? ... this DAC is a magnet ... It must be unforgettable experience with your wife 😀
Nice regulator in your project, I will add the link as I like LM317/337 and it is with de-noiser 🙂 ... VRDN: bipolar regulator PCB for line level ckts: ±11V to ±20V @ 1.5A with "De-Noiser"
Really? ... this DAC is a magnet ... It must be unforgettable experience with your wife 😀
Nice regulator in your project, I will add the link as I like LM317/337 and it is with de-noiser 🙂 ... VRDN: bipolar regulator PCB for line level ckts: ±11V to ±20V @ 1.5A with "De-Noiser"
The really nice thing about the VRDN is the massive CRC before the 317/337. As designed, has a low pass of 185Hz. Also allows you to use a wall wart with half-wave rectification.
Nice job RickRay!
Miro’s Dac has become an obsession, so many tweaks that easily can be achieved with his layout. Your really going to enjoy it! It’s too bad the AD1862 is obsolete, its a fantastic foundation for a killer Dac.
Miro’s Dac has become an obsession, so many tweaks that easily can be achieved with his layout. Your really going to enjoy it! It’s too bad the AD1862 is obsolete, its a fantastic foundation for a killer Dac.
@Micro1360,
without the 47p cap and do I need the jump on C36 ad C31 location
and any negative effect if skip these 47p caps?
Thanks in advance
without the 47p cap and do I need the jump on C36 ad C31 location
and any negative effect if skip these 47p caps?
Thanks in advance
@pistollero
The fewer capacitors touching the signal path, the less distorted the sound 🙂
By the "jump" do you mean "short"? No, never short capacitors (no jumper).
A lower stability at high frequencies can occur without the capacitor - for a voltage feedback operational amplifier (VFA). This capacitor is not given at all for a current feedback operational amplifier (CFA), because it would practically worsen the stability 🙂
It's more for testing than for theory, but in my opinion you can skip the capacitor - the sound can be better without this capacitor (I don't put this capacitor in there).
Crazy reading about it is in TI report SBAA150A.
A lower stability at high frequencies can occur without the capacitor - for a voltage feedback operational amplifier (VFA). This capacitor is not given at all for a current feedback operational amplifier (CFA), because it would practically worsen the stability 🙂
It's more for testing than for theory, but in my opinion you can skip the capacitor - the sound can be better without this capacitor (I don't put this capacitor in there).
Crazy reading about it is in TI report SBAA150A.
Attachments
So is there any way to get the resolution go beyond 96Khz?
I have music files of various resolution up to 24/384.
The only way to be trouble free playing is to set the upsampling to 96Khz.
Bitrate works at all 16/24/32 with no problem.
Otherwise, it will have distortion.
I love the SQ of AD1862.
(My AD1865 dac can handle everything. )
I have music files of various resolution up to 24/384.
The only way to be trouble free playing is to set the upsampling to 96Khz.
Bitrate works at all 16/24/32 with no problem.
Otherwise, it will have distortion.
I love the SQ of AD1862.
(My AD1865 dac can handle everything. )
New group buy is on for ordering AD1862 from Rochester 😀
https://www.diyaudio.com/forums/group-buys/361795-rochester-ad1862n-buy-5.html#post6468594
https://www.diyaudio.com/forums/group-buys/361795-rochester-ad1862n-buy-5.html#post6468594
it can be the layout between the digital front end and the dac board itself perhaps ! Maybe even the spidf or usb board you use ???
@nano35
Try to slow down DATA with 1k resistor (in series), if not helped install the resistor on the BCK (either one or the other).
Try to slow down DATA with 1k resistor (in series), if not helped install the resistor on the BCK (either one or the other).
Thank You, Miro
The resistor is unchanged. If the value was 1.8k, keep it 🙂
- Home
- Source & Line
- Digital Line Level
- DAC AD1862: Almost THT, I2S input, NOS, R-2R