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iBasso D42 "Mamba" with dual dacs! !! Hey Hey! Improved Starting on Page 76 . - Page 22

post #316 of 1153
Quote:
Originally Posted by musicalbox View Post
Hi all, experts like HeadophoneAddict in particular, as you are really helpful with all your answers. I'm planning to use DAC only portion of the D4.


1. when plugged to an USB port of my notebook, can it play (receive and covert) PCM stereo audio at 24-bit 96kHz? either from .wav or .flac, via foobar2000?

2. if not, what other high-quality portable USB DACs have this abbility?


3. I looked on iBasso D10 and I really like it (but didn't find the answer as well). Does it mean that when the input is optical (spdif) there (not usb used), it is able to play 24bit/96KHz files and that is its advantage? If not, why are they putting 24/192 DACs inside?


This website is simply incredible (and huge)! But I've been through all 21 pages and haven't found the answer prior to buying D4, but I'm learning many new things along the way so it was good!


P.S. big majority of my music is stored in 24-bit 96kHz format (DSOTM is in 24/192), either my SACD rips (via marantz HDMI) or many old LP rips, so 24/96 is very important to me. I haven't listened to 16bit /44kHz in a while, but have hard time of finding proper portable DAC.
1. There are not many options for USB DAC at a native 24/96 that can run off a laptop on battery and no wall power. Even if you allow wall power the options are limited. For 24/96 via USB there is the EMU0404, Musiland something or other, CEntrance DACport (not available yet but sounded fantastic at RMAF with RS-1), Apogee Duet 24/96 firewire, Benchmark DAC1, The Bel Canto USB>SPDIF adapter, the upcoming Nuforce Icon HDP (soon), some Off-Ramp thingee USB to SPDIF adapter, and maybe a couple of others. Usually you need optical/coax for 24/96.

2 & 3. iBasso D10 will do 24/96 via optical (the D1 only did 24/48 via optical, as does my Apogee mini-DAC via USB). The only other portable to do 24/96 optical is the Headroom Micro Portable Amp with DAC at 2x the cost.
post #317 of 1153
Quote:
Originally Posted by HeadphoneAddict View Post
1. There are not many options for USB DAC at a native 24/96 that can run off a laptop on battery and no wall power. Even if you allow wall power the options are limited. For 24/96 via USB there is the EMU0404, Musiland something or other, CEntrance DACport (not available yet but sounded fantastic at RMAF with RS-1), Apogee Duet 24/96 firewire, Benchmark DAC1, The Bel Canto USB>SPDIF adapter, the upcoming Nuforce Icon HDP (soon), some Off-Ramp thingee USB to SPDIF adapter, and maybe a couple of others. Usually you need optical/coax for 24/96.

2 & 3. iBasso D10 will do 24/96 via optical (the D1 only did 24/48 via optical, as does my Apogee mini-DAC via USB). The only other portable to do 24/96 optical is the Headroom Micro Portable Amp with DAC at 2x the cost.
Larry, while its not a portable, one of the things I like about the Topaz is that it upsamples everything to 24/96 via optical, but I think you mentioned in the review that this tends to make a lot of music sound thin and it may be counter-productive from that POV (apologies if that was a Skylab entry - its been a while since I read that thread).

I have had good results with the Topaz hooked up to my integrated, but I am really betting the farm on the Lisa RS next year. Failing that, I will try the uDAC with the Lisa, but having a DAC that takes optical input is a definite plus and I'm hoping it works as well as my fevered imagination would have me believe.
post #318 of 1153
Quote:
Originally Posted by estreeter View Post
Larry, while its not a portable, one of the things I like about the Topaz is that it upsamples everything to 24/96 via optical, but I think you mentioned in the review that this tends to make a lot of music sound thin and it may be counter-productive from that POV (apologies if that was a Skylab entry - its been a while since I read that thread).

I have had good results with the Topaz hooked up to my integrated, but I am really betting the farm on the Lisa RS next year. Failing that, I will try the uDAC with the Lisa, but having a DAC that takes optical input is a definite plus and I'm hoping it works as well as my fevered imagination would have me believe.
That wasn't me.

The other poster made it clear that he is using native files in 24/96 and doesn't want the computer down-converting them to a lower bit rate to go out the USB port, even if the DAC will up-sample back to 24/96 (which isn't the same).

When I tried the CEntrance DACport at RMAF I listened with my own native 24/96 hi-res music, and it sounded better with more air and ambience at a full 24/96 than when I had the Macbook convert everything out of the USB to 16/44. In my iBasso D10 review I also reported an improvement in ambience and space when listening at full hi-resolution than when down-sampling to hi-res music file to a lower rate.
post #319 of 1153
So I was going to get the D4, but the wife convinced me that the D2+ was enough for my gear and bought me a 1080p, 120hz, 52in Sony LCD instead for Christmas. Did I get a good deal?
post #320 of 1153
Is the D4 amp much of an improvement compared to T3? Thinking about getting one, but the dual dac's aside, the amp really should be better than T3's right?
I think I'll use it outside on the run as much as insinde with the DAC.
post #321 of 1153
Quote:
Originally Posted by trentino View Post
Is the D4 amp much of an improvement compared to T3? Thinking about getting one, but the dual dac's aside, the amp really should be better than T3's right?
I think I'll use it outside on the run as much as insinde with the DAC.
If you are planning DAC use, that leaves out the T3. If, however, you are only considering the performance of the amp sections, I do believe that, ultimately, the D4 outperforms the T3, especially with full-sized cans.

It does, however, take very good phones and source to realize the differences.
post #322 of 1153
Ok thanks HiFlight. I own the T3 and are looking for an upgrade. Mainly use IEM's. Maybe I should look towards other IEM specific amps.
post #323 of 1153
Quote:
Originally Posted by trentino View Post
Ok thanks HiFlight. I own the T3 and are looking for an upgrade. Mainly use IEM's. Maybe I should look towards other IEM specific amps.
For IEM use, T3 is VERY hard to surpass! You might be interested in some of Jamato8's comparisons between the T3 and RSA Shadow. I don't know how many comments he has posted, but you might drop him a PM, as he has both.
post #324 of 1153
Just got my D4... disappointed with how the package came though... was not UPS's fault, iBasso didn't even seal the box and everything was flying around in the little bag... jeez.

At least the D4 sounds good with the UM3X, certainly does live up to the expectations and opinions given in this thread. I should be expecting my PICO DAC/AMP to arrive tomorrow as well, which has a good 200-300 hours on it and will give the two a good listen.

Edit: Just tried the SRH840 with this and it really is lacking in the low end. Thoughts?
post #325 of 1153

Mini-Review: iBasso T3 vs T4 and D4

I think the T3 is better than my T4, but the D4 is better than the T3. I don't think the T3 is as transparent and open sounding as the D4, but it is definitely performing well above my expectations for a tiny amp.

The T4 is a little darker and mellow and good with bright IEM when trying to pair them with a brighter sounding Nano or Touch, but not really offering sound quality that much better than an iPod. As a matter of fact, my iPhone 3G and 3GS headphone out sounds more detailed and balanced than the T4. Yet the T4 is not a bad amp at all, it's just not as good as the iPhone 3G/3GS which I think is the best sounding iPod ever made. The T4 bass boost was good for some bass-lite phones, but it's a pretty warm amp even without the boost.

So, the T3 adds a bit more clarity and detail over the T4. The frequency response seems more balanced with the T3 vs the T4 because of this, yet it's still a warm and punchy enough amp that I don't miss trading the bass boost in trade for the 4 gain settings (instead of 2). It has more power than my iPods, and it offers improvements via LOD that make it worth using with full size cans vs using the headphone out. And, the sound is good enough that it is still an upgrade over the iPod headphone out for many IEM.

If you don't need the DAC, and you will be using it totally with an iPod portable where size is important, then the T3 makes more sense. I am listening to my 5G Nano > piccolino LOD > T3 > UE 11Pro and it sounds better than the Nano headphone out. I normally don't like the UE 11Pro via the Nano or iPhone 3GS headphone out, and the T3 sounds better with them.

Somehow, the T3 is still a great match with my ES3X and JH 13Pro too, and despite it's controlling the bass on the UE 11Pro better than my Nano or iPhone do, the T3 is NEVER bass-lite with my other IEM. There is very strong bass with my ES3X out of the T3 amp, and a bit more than from my iPod video or 5G Nano headphone out. The ES3X are so much more efficient than the JH 13Pro that I can get the T3 volume knob down into areas of channel imbalance when listening with the ES3X, but those low volume levels are still quiet enough for me to go to bed wearing the the ES3X before I fall asleep. i.e. T3 is quieter than the T4 when hovering at the point of channel imbalance.

When either T4 or T3 volume knob is turned down to zero a little very quiet music still leaks through with the ES3X, which is louder at zero in the T4 than the T3. I hadn't noticed this when I was using JH 13Pro or my RS-1. But, there is ZERO hiss with the T3 and ES3X when I hit pause or stop the music. (same as with T4 and D4)

With my iMod and HD600, the T3 also sounds a little crisper and better defined than the T4. And, in low gain the T3 can reach very nice volume levels with the HD600 - in fact the T3 in the second from lowest gain position can play the HD600 louder than the T4 or Nuforce Icon Mobile at any gain setting. Once I max the T3/HD600 volume in the 3rd gain setting with HD600, only then do I get clipping at volume levels higher than I would normally listen.

The D4 with 9v power does have noticeably better bass impact and louder volumes with HD600 than either the T3 or T4, so if you want the best portable and powerful amp for HD600, you might want to consider the D4 in 9v mode (or 3MOVE, Pico and Vivid V1). But the T3 will do fine in a pinch with the HD600 and still give you a tiny package for portable IEM listening.
post #326 of 1153
Thread Starter 
Quote:
Originally Posted by obentou View Post
Just got my D4... disappointed with how the package came though... was not UPS's fault, iBasso didn't even seal the box and everything was flying around in the little bag... jeez.

At least the D4 sounds good with the UM3X, certainly does live up to the expectations and opinions given in this thread. I should be expecting my PICO DAC/AMP to arrive tomorrow as well, which has a good 200-300 hours on it and will give the two a good listen.

Edit: Just tried the SRH840 with this and it really is lacking in the low end. Thoughts?
The D4 needs on time to form the caps. Until then the bass won't be as solid or defined as it is when the amp has had some hours on it.
post #327 of 1153

Mamba questions

Is it "normal" the hissing sound coming from the D4 ?
It's the second unit i have now (the first i send back to iBasso), which btw have an excellente customer service and promptly send me another unit received today but...just when i plug any headphone to it i hear an hiss, with rock or any kind of music more "full" you wont notice, but when i listen to jazz for instance, it's not pleasant at all, and another thing, when i hit the gain button, the music starts to "jump"?
Tried with diferent headphones, sources, music and still the same..
It's not suposed to be like that right?
post #328 of 1153
Thread Starter 
Mine is totally quiet, no hiss and the gain switch works fine. Have you tried just the amp with the battery and no USB input?
post #329 of 1153
Yes, all this occurs running from battery and not USB.
One thing i noticed its that the battery seems to be a little bit larger than the space and have to make a litlle pressure with the screw to close the D4, maybe that's it ? But it's a regular 9 volt battery.
Any more clues?
It's just bad bad luck that the second unit will come with defect...
post #330 of 1153
I think the need to press on the back of the enclosure in order to get the screws on when a 9V is inserted is by design. At least I have to press on it with my Powerex 230mAh 9V batteries. When using high gain USB power it has a lot of hiss. Low gain, still hisses but it's a lot less noticeable. Most noticeable is the fact that if I click with my mouse and move it around you can hear that through the D4 (only with my JH13s; with my ESW10 you can't hear it). With battery there is hiss when I jack up the volume past 12 o'clock (good enough to deafen me at that level so I'll never actually go there) but anywhere below that it is nice and quiet.
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