iFi iDSD Micro DSD512 / PCM768 DAC and Headphone Amp. Impressions, Reviews and Comments.
Oct 10, 2015 at 9:27 PM Post #4,666 of 9,047
 
   
Hi,
 
But all is not lost, while the micro iDSD has neither the battery current nor the circuit board space to include the ‘Tubestate®’ circuit, in its place there is a (Burr Brown ‘SoundPlus®’) Op-Amp, one of the best you can get and close in character to the Tubestate® circuit, but just not quite as warm, ‘tubey’ sounding.
 

 
Thanks God, in name of all the ones which just wants the sound which is actually recorded in the audio tracks, to be reproduced.
And not a even-harmonic-distorted, though pleasing to some, version of it.

+1
 
Oct 11, 2015 at 12:05 AM Post #4,667 of 9,047
  ...
But all is not lost, while the micro iDSD has neither the battery current nor the circuit board space to include the ‘Tubestate®’ circuit, in its place there is a (Burr Brown ‘SoundPlus®’) Op-Amp, one of the best you can get and close in character to the Tubestate® circuit, but just not quite as warm, ‘tubey’ sounding.

 
I hope ifi will consider Burr Brown OPA827 for the next version of iDSD or other model 
wink_face.gif

 
Oct 12, 2015 at 3:05 AM Post #4,668 of 9,047
  Hi,
 
 
I would like to use a micro iDSD with a SAMSUNG S4 and QOBUZ, can you tell me if it's compatible ?
I it's not compatible I could use a LG G3.
 
 
Thanks you
 
Proton

 
Try this thread. @DanBa has compiled a very thorough compatibility list.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs
 
A list of standard USB DAC reportedly interworking with the Android-powered smartphone Samung Galaxy S4 having a microSD card slot:
stock Samsung Galaxy S4 > digital USB audio out >> USB OTG cable (ID pin grounded) >> USB DAC >> amp >>headphones
http://goo.gl/dIwrqp

 
Oct 12, 2015 at 11:18 PM Post #4,670 of 9,047
Hi.. My ifi micro idsd gets kinda hot while driving my Lcd2 for 30 mins on the turbo mode.. Is it normal?


Yep, that's normal.
 
Oct 13, 2015 at 2:15 AM Post #4,671 of 9,047
Hi.. My ifi micro idsd gets kinda hot while driving my Lcd2 for 30 mins on the turbo mode.. Is it normal?


Just adding this for future reference, from the FAQs on the ifi-audio website:
 

Frequently Asked Questions

All Categories » iDSD - (micro)
Unit is overheating
 ​
 
 
 
The Micro will run warm in turbo mode. Please don't worry, this is completely normal. 

As long as the case temperature is less than 35 degrees/ not above room temp, then there is no reason to panic.
 
Help Topics: General Inquiry
 
Oct 13, 2015 at 3:54 AM Post #4,673 of 9,047
Yep, that's normal.



Just adding this for future reference, from the FAQs on the ifi-audio website:

Frequently Asked Questions



[COLOR=0072BC]All Categories[/COLOR] » [COLOR=0072BC]iDSD - (micro)[/COLOR]
Unit is overheating


[FLOAT=RIGHT]
 ​
[/FLOAT]
 




The Micro will run warm in turbo mode. Please don't worry, this is completely normal. 


As long as the case temperature is less than 35 degrees/ not above room temp, then there is no reason to panic.

[COLOR=666666]Help Topics:[/COLOR] General Inquiry


Thanks for the info! :)
 
Oct 15, 2015 at 3:39 AM Post #4,674 of 9,047
brother, it is not Turbo for nothing. Ever driven a Porsche? The Turbo does not run cool. Try with HE_6. Even warmer (wouldn't call it hot. Other gears run hotter than curry)


HE:6 paired with the micro is like a f150 pulling a tracker trailer! I first tried the Lyr2 and still not enough juice then opted for the Mj2 bingo finally got enough juice with the micro!  Now I can't wait until the iDSD Pro launches in early 2016 then I can go fully balanced!
 
Oct 15, 2015 at 10:37 AM Post #4,675 of 9,047
 
HE:6 paired with the micro is like a f150 pulling a tracker trailer! I first tried the Lyr2 and still not enough juice then opted for the Mj2 bingo finally got enough juice with the micro!  Now I can't wait until the iDSD Pro launches in early 2016 then I can go fully balanced!


So it's even able to power the legendarily-hard-to-drive HE6, huh?  Awesome!
 
Oct 15, 2015 at 9:45 PM Post #4,676 of 9,047
Question: If I'm using iFi micro iDSD to iFi micro iTUBE to amp to speakers, which 3D switch should I use, that in the iDSD or iTUBE?
 
Oct 15, 2015 at 10:14 PM Post #4,677 of 9,047
Another question...I'm looking for another iFi DAC...what would be the iFi micro iDAC2's advantage over the iFi micro iDSD? I'm looking to get another iFi micro iDSD for pure desktop use, but I'm thinking I might save some dough with the iDAC2. Would micro iDSD be better in every aspect for desktop use?
 
Oct 16, 2015 at 2:09 AM Post #4,678 of 9,047
Question: If I'm using iFi micro iDSD to iFi micro iTUBE to amp to speakers, which 3D switch should I use, that in the iDSD or iTUBE?

 
Hi,
 
Set iDSD micro to direct out, use volume control & 3D Holographic in the iTube (which is for Speakers only). That is how we advise our distributors torecommend to dealers and customers.
 
Cheers.
 
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Oct 16, 2015 at 2:12 AM Post #4,679 of 9,047
Another question...I'm looking for another iFi DAC...what would be the iFi micro iDAC2's advantage over the iFi micro iDSD? I'm looking to get another iFi micro iDSD for pure desktop use, but I'm thinking I might save some dough with the iDAC2. Would micro iDSD be better in every aspect for desktop use?

 
Hi,
 
Pure desktop, go iDAC2. It is 80:20 portable/desktop. (unless you use super sensitive IEMs that need reigning in).
 
Micro iDSD = 60:40 portable/desktop.
 
Cheers.
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://www.facebook.com/iFiAudio/ https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com
Oct 16, 2015 at 2:19 AM Post #4,680 of 9,047
 
   
Hi,
 
But all is not lost, while the micro iDSD has neither the battery current nor the circuit board space to include the ‘Tubestate®’ circuit, in its place there is a (Burr Brown ‘SoundPlus®’) Op-Amp, one of the best you can get and close in character to the Tubestate® circuit, but just not quite as warm, ‘tubey’ sounding.
 

 
Thanks God, in name of all the ones which just wants the sound which is actually recorded in the audio tracks, to be reproduced.
And not a even-harmonic-distorted, though pleasing to some, version of it.

 
Hi,
 
Please allow us to explain further:
 
With respect, adding oodles of even order harmonics is not what Tube State (or even our real tube circuitry) is about. It is true this is quite prevalent in the <$1,000 segment of the audio market where quite a few companies do not do truly high-end stuff (with respect). Some people try to emulate 'Tube Sound' by just adding distortion. The result invariably is an unrealistic dummy sound, nothing like real tubes. We agree this goes on with some companies that just make tubes but never really went 'all out.'
 
But this is not what we do. With the AMR background, iFi thinks and works a little different. And yes, for measurements people, they can have their cake and eat it too.
 
ClieOS measured the iCAN (with tubestate Circuit) in his review:
http://www.inearmatters.net/2013/04/impression-ifi-audio-idac-ican-iusb.html
 
He explained "In fact, iCAN performance has excessed the resolution of my measuring setup so it looks pretty much perfect."
 
He also tested the iTube:
http://www.inearmatters.net/2013/08/impression-ifi-audio-itube-magic-infused.html
 
His comments on how it measured compared to iCAN alone: "we are talking about 0.001% of difference in THD and 0.004% in IMD+Noise, plus less than 2dBA in overall noise level."
 
Neither the Tube State circuitry in the iCAN micro nor the Tube in the iTube produce much distortion, noise or other objectively measurable additions of any kind.
 
By the way, the same holds true for the iCAN Pro. We clocked that at 'tripple zero' levels of THD (meaning 0.000X% THD) in tube mode and 126dB ( A ) Signal/Noise ratio, in single-ended mode (THD is less in balanced mode). Remember, that is in TUBE mode. So nope, we don't do the usual 'chuck loads at it' thing.
 
This is the AMR pedigree which means we do handle tubes/valves in an unconventional manner.
 
iFi audio Stay updated on iFi audio at their sponsor profile on Head-Fi.
 
https://www.facebook.com/iFiAudio/ https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ https://www.youtube.com/@iFiaudiochannel comms@ifi-audio.com

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