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DX90. 2X Sabre,1st page: Downloads, info&inst. . ! Lurker0 FW Mod link 1st page !!. .NEW FW! 2.3.0 . . . . . - Page 135

post #2011 of 13841
Quote:
Originally Posted by jamato8 View Post
 

The noise floor of the DX90 would be lower than the DX50. I don't hear anything with my JH13 Pros but that isn't saying something with incredible sensitivity won't pick up something, I have no way of knowing but I know the DX90 has a very black quiet background. 


Jamato, thanks for your feedback.  Not a deal breaker by any means as I enjoy my DX50 already on the go immensely with my sensitive IEMS.  Just need that preorder to go up.:)

post #2012 of 13841
Thread Starter 

DX90 Review

 

 

It should be easy to review the DX90. The best evaluation I could do would be to suggest that you listen to one. That isn't what a review is about though. And there are times when people aren't interested in purchasing something, they would like to know something about the item, for interest sake. 

 

For me, what makes reviewing the DX90 more difficult, besides restraints on my time, is that it does so many things differently. To my ear it doesn't fit a mold, nor is it a progression of a line or a step up or down from some other DAP. I find I need to explain new terms, or to define terms in a new way that to me, is how different the DX90 is. I hear music not as something canned and electronically presented but I hear music for the sake of music. Minor occurrences, the sound, in a recording, are presented as important to the role of what I hear as the main figure, or theme. As a story has an antagonist normally the counter to the protagonist with both built on so you can understand in more depth their characters and you have the foils, who are figures that provide the fill with much less is known about them and less is built on them but they add body to the story. 

 

So it goes so much of the time with music I have heard. The main singer comes through, the instrument and you have all the supporting singers and instruments, sometimes taking their turns but you have the main drive, the nature of what the story is about. To have a story with all characters built, would be a joy but often too time consuming and sometimes unnecessary, unless it is a very simple outlay. The DX90 is able to pull from the recording, when well done, all the characters and lays them out to be heard in a dynamic space and time that creates and auditory image that belies the recording. It does not lay bare the music with intolerance, that drives a wedge between you and the music but brings the music to a closer and more emotionally satisfying place. 

 

I often listen to Neil Young's live recordings that I have heard so many times before. With the DX90 I am not separated, I am there, and it is mentally tangible. Recently I have started listening to Greg Brown on his solo recordings. Brown's voice, which is so individual, drives the words sings. His guitar carries the line and you can feel the connection. On these recordings you can sense the space dynamic drive of individual sounds as they emanate from the space they occupy. 

 

I have been using the Fostex TH900 and the Hifiman 560 quite a bit in conjunction with the DX90. I also use the ESW10 JPN. The Fostex and ESW 10 are rewired with Whiplash's new gold plated silver that I find that this gets the most out of the phones and gives me the reference I am after. The Hifiman 560 is used with either the stock cable or the copper cable that comes with the HE-6. These are the main phones I have used to this point. 

 

I have tried several amps, my favorite the fi.Q with the DX90 but I don't find it necessary, even with the HE-560. The amp section of the DX90 is a marvel. I couldn't ask anything more out of a portable amp. By using separate amps, I was able to get a handle on what the dac section and amp section are doing and what each is doing is superb. This is a case where both compliment each other. All my listening impression that I present here are done with the DX90 in total, nothing added, nothing taken away. 

 

I write here that the dynamics of the DX90 are the best I have heard from a DAP because they are personalized to the music, the performance and not generic. There is no compression of the sound, no bleeding of frequencies, no enhancement. The bass articulates, fluctuates to the recording. The mid frequencies give justice to the human voice or anything else that falls with their realm. Highs, to my ear are extended and without edge, glare or unnaturalness. In fact the entire sound is natural. With the S/N ratio of 119 and a crosstalk of 115 comes advantages. The DX90 has a silent acoustical background that builds the music, the placement, if it is close or far off sound is replicated and offstage sounds are realistic.

 

Take from my review what you can, what you will. For me the DX90 takes the recording you hand it and gives you back music and that is an experience I can live with every day.


Edited by jamato8 - 4/6/14 at 9:46pm
post #2013 of 13841
nice
post #2014 of 13841

Thanks for the review jamato.  Can you give us impressions of the DX90 against the DX100?  I'm wondering how this duel sabre marvel fares to the single sabre DX100.  I'm looking to use it with CIEM so I'm perfectly fine with lower powered Amp section than the DX100, but I'm hoping the sound is more detailed and neutral as possible(but pushed mids and forwarded bass, with great imaging is fine).

 

I would like to hear comparisons with AK240 if someone can so kindly compare them.

 

Also, can someboy explain the advantages of duel sabre DAC?

 

Thank you.  I'm really interested in this DAP, hope it trumps the AK240 for CIEMs since we know it will be more reasonably priced.  :D 


Edited by SilverEars - 4/6/14 at 9:57pm
post #2015 of 13841
Is this coming out today? If so, will someone please PM when it goes up for sale ?
post #2016 of 13841
Been hitting F5 since morning.. Deeply poisoned by Jamato.
post #2017 of 13841
Quote:
Originally Posted by SilverEars View Post
 

Thanks for the review jamato.  Can you give us impressions of the DX90 against the DX100?  I'm wondering how this duel sabre marvel fares to the single sabre DX100.  I'm looking to use it with CIEM so I'm perfectly fine with lower powered Amp section than the DX100, but I'm hoping the sound is more detailed and neutral as possible(but pushed mids and forwarded bass, with great imaging is fine).

 

I would like to hear comparisons with AK240 if someone can so kindly compare them.

 

Also, can someboy explain the advantages of duel sabre DAC?

 

Thank you.  I'm really interested in this DAP, hope it trumps the AK240 for CIEMs since we know it will be more reasonably priced.  :D 

 

 I would also like a comparison with a DX100, also a X5 and HM901 :P don't really care about the AK240 :/

 

As for dual DACs, Looking at the technical specs of a DAC usually show improvement when in dual mono compared to stereo, eg: es9018 has THD of -120 in mono, but -110 in stereo.

 

But it is not as simple as that, we all know that what is more important than the DAC, is the implementation of the DAC. One specific area I know that could have been improved in the DX90 is the choice of 2x dual channel opamps for IV conversion of the DAC, this is a critical stage that would benefit from the lower noise and higher accuracy of 4x single channel opamps (much like the argument for dual DAC's). Honestly they wouldn't have been able to fit in the 4x single opamps for the IV stage so I don't blame ibasso and it makes the subject kinda irrelevant, the X5 like the DX90 uses 2x dual channel opamps for IV conversion instead of the 4x single I would have liked to see. 

 

In saying that, iBasso have one upped Fiio's X5 by using 2x single channel opamps for LPF and 2x single channel for Amping, while X5 uses one dual channel opamp for each of those (reducing total opamps by two compared to DX90). When I asked James from Fiio why they had gone with dual channels opamps here, he said they didn't have enough space for 2x single, so the fact that ibasso have crammed in two more opamps in a DAP that is even smaller than the X5 is a marvel.

 

BUT the circuitry work of these DAPs is also very important, so who knows, maybe ibasso had to cut  corners on general circuitry to fit them in compared to X5. So end of the day we just gotta have a listen and decide with our ears rather than look at specs which may be irrelevant in the grand scheme! I personally reckon both Fiio and iBasso have done their very best in both their designs, they both went with different designs with different corners cut, but I'm sure each have their reasons for it, they haven't just thrown bits together hoping for good sound you know! And it simply isn't possible to achieve perfection in a pocket sized DAP, corners must be cut and sacrifices made.


Edited by T.R.A.N.C.E. - 4/6/14 at 10:57pm
post #2018 of 13841

My guess is the DX90 will not be ready to be order for another 8 hours or so. I'm judging this based on the release of the DX50. When I woke up the last time the DX50 was ready to order. I guess I better head to bed. 

post #2019 of 13841
Will this be for pre-orders, or when it goes up=ready to ship?
Have they said how many will be available first batch ?
post #2020 of 13841
No preorder and a first batch of a thousand units is what has been mentioned
post #2021 of 13841

Thanks, jamato, for your input.  It's hard to describe SQ but you've tried your best.  My only problem now is the DX90 is not on sale ... yet!

 

Cheers. and take care.

post #2022 of 13841

still no pic(s) yet? @_@

post #2023 of 13841

Thanks, Jamato!  Really appreciate your time and effort to do this despite your busy schedule. 

(I know how much time is required to edit a book.  All the best with that too!)

post #2024 of 13841
Quote:
Originally Posted by DoctorN View Post
 

still no pic(s) yet? @_@


There are some floating in the Chinese forum, e.g. http://www.erji.net/read.php?tid=1636596&fpage=0&toread=&page=1.

From what I understand, it looks the same as DX50, and that may be why Jamato didn't post any pictures.

post #2025 of 13841
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