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iFi iDSD Micro DSD512 / PCM768 DAC and Headphone Amp. Impressions, Reviews and Comments. - Page 42

post #616 of 965

Based on what I've heard so far with my Micro, I've already planned to include an iDSD Mini into my hifi upgrade path.

post #617 of 965

If you look at some of the recent comments on a few other forums, there seems to be almost disbelief of what iFi have been able to achieve with the chip specs in the Micro.

 

My take is this, iFi was clever enough to be able to unlock the potential which had been engineered (probably many years ago) into the BB1793 chip. It also speaks a lot about the capabilities of the Japanese chip engineers at that time.

 

This doesn't show the current proclaimed DAC chip gurus as being very state-of-the-art though.


Edited by semeniub - 8/27/14 at 10:15pm
post #618 of 965

I appreciate all the great info. on smartphone and tablet / computer source use. I am itching to try this (or possibly the nano) on my PC with FooBar. I also do a lot of portable listening with a DAP and am ready to pull the trigger on the new ibasso.. Can the Micro i-DSD accept digital input from an ibasso DX90 coax output as source? If so, what cabling is needed....and would it likely improve the DX90's unamped sound?

 

Thanks for any info.

post #619 of 965
Is there a proposed price on the mini dsd ??
Al
post #620 of 965


$1500 is the current estimate

post #621 of 965

$1500 will kill sales IMO... The further they take it over $1000 the lower sales will be. :(

post #622 of 965
Quote:
Originally Posted by bobsherman View Post
 

$1500 will kill sales IMO... The further they take it over $1000 the lower sales will be. :(

what do you base this claim on?  Yes, I end my sentences with prepositions -- try and stop me!  :D

post #623 of 965

IFI has repeatedly said that $1500 is not the official price. Hang on to your horses and wait for the official announcement.


Edited by john57 - 8/28/14 at 10:18am
post #624 of 965
^ Didn't Stereophile and others report a target price point at $1,000.00?
post #625 of 965

Killer review here:

 

http://www.enjoythemusic.com/magazine/equipment/0914/ifi_audio_micro_idsd_dac_headphone_amplifier.htm

post #626 of 965
Quote:
Originally Posted by LoryWiv View Post

I appreciate all the great info. on smartphone and tablet / computer source use. I am itching to try this (or possibly the nano) on my PC with FooBar. I also do a lot of portable listening with a DAP and am ready to pull the trigger on the new ibasso.. Can the Micro i-DSD accept digital input from an ibasso DX90 coax output as source? If so, what cabling is needed....and would it likely improve the DX90's unamped sound?

Hi, i just recently listened to this combination with my HE-500. It's incredible. A big improvement over the DAC and amp of the iBasso.
I used the stock cable delivered with the iBasso. Works like a charm. Don't know the cable quality though. Couldn't review that.

[\quote]

Edited by JeffDee - 8/28/14 at 12:43pm
post #627 of 965
Quote:
Originally Posted by fzman View Post
 

what do you base this claim on?  Yes, I end my sentences with prepositions -- try and stop me!  :D


Just the feeling that many people would go for the Micro at $500 and not pay three times the price for the Mini.

post #628 of 965

Any way to get USB audio from my note 3? It worked like charm with the nano but it doesn't work with micro?

I thought it will be the same compatibility... :confused_face_2: 

post #629 of 965
Thread Starter 

Lots of hand wringing over the price of the Mini.  An iFi representative did indeed say $1500 in the mini thread.  But, that is not an official price.  I concur with the others who say be patient... the $1500 mark is of some consequence, though.  You had better believe iFi is aiming at products in that price bracket when it comes to sheer audio performance.  

 

But, that is not why I am starting this thread.  

 

Lots of talk about the Hugo, and how it compares.  As a DSD DAC, the Micro is quite different.  Rob Watts of Chord has said this about DSD decoding: "Simple and false statements like "native DSD is best" hide a very much more complex reality."

 

Now I am just a layman, but I know many a non-layman who would vehemently disagree with this statement.  Now, if he had removed the word 'false', I might have taken it more softly, because he is correct that 'Native DSD' is vague, and exactly what implementations constitute native DSD could be debated. Futhermore, the label 'Native DSD' is applied to a lot of things that are in no way similar.  But by taking the hard stance that he does, which is truly clarified in how he implements DSD in his DAC, I would say 'game on'.  

 

For reference, here is how Chord does DSD.   http://www.head-fi.org/t/702787/chord-hugo/2475#post_10494245

 

 

The thing about Native DSD conversion, or at least what it means to me, is the least amount of processing possible in digital to analog conversion.  DSD DACS are all over the board, though, in the type and the amount of signal processing.  

 

 

You have the simplest kind of DSD DAC's that take the DSD logic signal, send it straight to a very simple analog RC filter, and be done with it.  All this really requires is a USB receiver with a DSD logic output, maybe some kind of reclocker to minimize jitter,  and a minimal amount of analog components.  See the Lampizator as a more sophisticated example.  

 

 

Another kind of DSD DAC takes the DSD logic signal, and rather than analog filter it, digitally filters it.  The output of the digital filter is multiplied, as in, it is multi-bit.  This is usually at the same sample rate as what went in.  This is sometimes called 'DSD-wide'.  This actually isn't a real problem at all, if a good filter is used.  After all, DSD has to be filtered, whether it is analog or digital.  In either case, the filter can have excellent impulse response properties.  The problem is, once digitally filtered, all kinds of other DSP's are applied.  Volume Control, Sample Rate Conversion, and then invariably this intermediate DSP signal is remodulated back into a traditional delta-sigma format.  The point is, what goes in and what comes out can be very, very different.  Examples of such chips are ESS Sabre.  Cirrus and Wolfson chips can be, and often are implemented this way.  Wolfson actually may decimate to DXD, though.  AKM may also be an example.    

 

Another way is to filter DSD into good old fashioned PCM, then convert as PCM.  This actually ain't all that bad, especially if you are using a high quality non-oversampling true PCM DAC.  The limiting factor here is of course the decimation filter.  You just can't get around it.  But, all in all, not necessarily a bad way to do things.  Some high end DAC makers are proponents of this method.  Bel Canto comes to mind, and I believe Berkeley.  

 

 

And finally, we come to the iDSD way.  The iDSD's, whether the Nano, the Micro, or the upcoming Mini, use the Burr Brown way.  It is similar to the first example given.  DSD is sent to an analog FIR filter for conversion.  There is no conversion to multi-bit, decimation, DSP, etc. happening to the DSD signal.   The devil is in the details, though, and it differs just a little from that first example I gave up a few paragraphs.  Suffice to say, it is native DSD via silicon.  I would call it a hybrid digital/analog filter.  Another DIY example that is familiar is the Signalyst DSD DAC.  It uses the same kind of conversion.  The difference is the number of elements, and their weighting.  

 

 

So, simplicity is what I am after.  I do believe, as do others, than minimal processing is the way to go with DSD.  Or with PCM, for that matter.  There are those who disagree, and I respect their opinion.  As a matter of fact, all of these methods above can and do produce very good results.  There is many an ESS DAC, for example, that sounds very, very nice.  

But the BEST DSD sound to me, is not found in those types of DACS.  The best sound is found in DACs just like the amazing...

 

iFi iDSD Micro.  

 

A true DSD DAC.  And the 'proof' is in the hearing.  I really think as soon as you hear DSD played back on this device, you will be hooked.  Or at least impressed :)  


Edited by MLGrado - 8/29/14 at 9:42am
post #630 of 965
Quote:
Originally Posted by john57 View Post
 

IFI has repeatedly said that $1500 is not the official price. Hang on to your horses and wait for the official announcement.

of course nothing is official. they don't even have a product yet. but ifi has thrown out that number on a few occasions, so that's a ballpark number. 

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