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Mar 27, 2015 at 9:18 AM Post #11,596 of 14,084

Well after 200 hours of listening and burning in the DX90, the sound from the DX90 output is much better, the lows and mids are very detailed and clarity is top notch to me.
Although like Caruryn, Kwangsun, Djinnenjous,  T.R.A.N.C.E.,  H20Fidelity and chawya22 again I find the W4 pairing with the DX90 too warm with treble roll-off, even with additional impedance dialed in as recommended.
 
I am not sure if this is a common occurence with the DX90 but I find listening to the W4 on the DX90 is tiring/grating: sometimes I feel like I am listening to a sawtooth waveform without anti-aliasing (to borrow the term from 3D graphics acceleration). I am wondering if this could be the multitudes of extra details presented by the DX90 that my old source, with the W4, could not present; or it could be the genre of music I am listening to uses a lot of electronic waveforms. Either way I swear I can hear new details I couldn't hear previously.... oh joy....
 
So synergy between the DX90 and W4 isn't working for me, bass is lacking in the bottom end as well - the W4 just coudn't produce the bass and treble like my cans, or my home hifi-speakers via the line-out.
 
I thought it's time for a dynamic IEM. My previous dynamic IEM was a Monster Turbine Pro Copper which I sold after getting the W4. So now in anticipation of the sound quality of the DX90 I took the jump and bought a pair of ATH-CKR10. This is my first ATH phones. And wow! Even without burning in, the ATH-CRK10 gives me back the loads of bass and the treble that the W4 seriously subdues.
 
Hopefully this will be a good pairing for the next few years for me.
smile_phones.gif
 
 
Mar 27, 2015 at 10:01 AM Post #11,597 of 14,084
wyvernone said:
 
Well after 200 hours of listening and burning in the DX90, the sound from the DX90 output is much better, the lows and mids are very detailed and clarity is top notch to me.
Although like Caruryn, Kwangsun, Djinnenjous,  T.R.A.N.C.E.,  H20Fidelity and chawya22 again I find the W4 pairing with the DX90 too warm with treble roll-off, even with additional impedance dialed in as recommended.
 
I am not sure if this is a common occurence with the DX90 but I find listening to the W4 on the DX90 is tiring/grating: sometimes I feel like I am listening to a sawtooth waveform without anti-aliasing (to borrow the term from 3D graphics acceleration). I am wondering if this could be the multitudes of extra details presented by the DX90 that my old source, with the W4, could not present; or it could be the genre of music I am listening to uses a lot of electronic waveforms. Either way I swear I can hear new details I couldn't hear previously.... oh joy....
 
So synergy between the DX90 and W4 isn't working for me, bass is lacking in the bottom end as well - the W4 just coudn't produce the bass and treble like my cans, or my home hifi-speakers via the line-out.
 
I thought it's time for a dynamic IEM. My previous dynamic IEM was a Monster Turbine Pro Copper which I sold after getting the W4. So now in anticipation of the sound quality of the DX90 I took the jump and bought a pair of ATH-CKR10. This is my first ATH phones. And wow! Even without burning in, the ATH_CRK10 gives me back the loads of bass and the treble that the W4 seriously subdues.
 
Hopefully this will be a good paring for the next few years for me.
smile_phones.gif
 
Click to expand...

 
 
I need to agree with you, my DX90 improved now it has some hours on it. At first, I was underwhelmed with the sound, It sounded restrained, held back. I haven't done any manual burn in, I sit neutral about the entire concept - just normal listening. Of course, I cannot be sure but to my ears its turned from a player I was selling on open box to practically my favourite / best performing DAP. Its a great little player, but still at the current AUD price of $639 Its a big sum to pay.
 
I was lucky to get mine much cheaper (under half that amount) and while I enjoy DX90 a lot with Fidue A83 now, I would not pay that asking price. The high price is due to our weak Australian dollar.
 
Mar 27, 2015 at 10:11 AM Post #11,598 of 14,084
wyvernone said:
 
So synergy between the DX90 and W4 isn't working for me, bass is lacking in the bottom end as well - the W4 just coudn't produce the bass and treble like my cans, or my home hifi-speakers via the line-out.
Click to expand...

Just about a synergy :), I think the DX90 is a half of real "the best player for its cost" without HW mod. I had a chance to listen it before and after mod. There are some posts in the forum about mod. Sound is just impressive.
 
Which version of FW are you use? And why?
 
Thanks for your review!
 
Mar 27, 2015 at 12:17 PM Post #11,601 of 14,084
nmatheis said:
Yes, to prevent scratching in case I decide to sell it later. That said, I probably won't sell it
wink.gif
Click to expand...

I tryed to use several films (the last was a Vikuiti (the 3M brand) and many thanks to man who posted it to me from Germany directly!) but not finded a happyness with it :frowning2:, just not mine. Thanks!
 
Just listen DX90 seriously, you'll never think again about selling it :) (Ads, ads  :) - I mean the HW mod as was described.
 
Mar 27, 2015 at 12:47 PM Post #11,602 of 14,084
zvermetel said:
I have a question 2All.
Does anyone use the protection film for player's screen? And if it's possible - describe please why yes or no in your answers.
Thanks.
Click to expand...


No because it annoys me and I don't carry the DX90 with me anyway
 
Mar 27, 2015 at 2:50 PM Post #11,605 of 14,084
zvermetel said:
I tryed to use several films (the last was a Vikuiti (the 3M brand) and many thanks to man who posted it to me from Germany directly!) but not finded a happyness with it :frowning2:, just not mine. Thanks!

Just listen DX90 seriously, you'll never think again about selling it :) (Ads, ads  :) - I mean the HW mod as was described.
Click to expand...


The HW mod has me intrigued, but I'm betting it'll be pretty costly with shipping to / from US to Russia plus price of the mod :eek:
 
Mar 27, 2015 at 2:55 PM Post #11,606 of 14,084
I am glad many are enjoying the DX90. The point of bringing out these daps is for the music and we truly mean this. I do not treat my DX90 very kind. I don't abuse it but I also want to know how it holds up to hard use. At this point with no screen protection there are no screen scratches. There are case scratches and wear marks. I don't use a case. So I put it through a torture test in real time.
smile.gif

 
iBasso Stay updated on iBasso at their sponsor profile on Head-Fi.
 
http://www.ibasso.com/ paul@ibasso.com
Mar 27, 2015 at 4:58 PM Post #11,608 of 14,084
Mar 27, 2015 at 6:18 PM Post #11,609 of 14,084
Doesn't your DX90 come with screen guard film? Mine comes with 2 pieces. I haven't even removed the initial scratch protection film with the DX90 green letters on the front
biggrin.gif
while I am unsure about keeping it. But I guess I am more sure of keeping the DX 90 now.
 
Mar 27, 2015 at 6:35 PM Post #11,610 of 14,084
zvermetel said:
  Which version of FW are you use? And why?
 
Click to expand...

 
I am using the stock 2.1.5. I know there firmware mods around but have been too busy enjoy the audio quality / burning in. I didn't think firmware mod could change the sound quality very much as opposed to operational issues like fonts, etc.
 
 All firmware versions for iBasso DX90, stock or with my modifications, are bit perfect. It means, with EQ turned off, the sound data is not affected by the software, and is transferred to the DAC exactly as it is. Any difference in sound signatures between versions are resulted from different conditions under which the hardware is running.
Click to expand...

 
If there are any improvement I would wish for in the firmware mod, in priority:
 
1. Add Sony CLearAudio+ enhancer
2. Improve that album art rescaler routine
 
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