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iBasso D42 "Mamba" with dual dacs! !! Hey Hey! Improved Starting on Page 76 . - Page 53

post #781 of 1153
Not sure why some are having issues - hooked mine up to my XP netbook today and it hasnt missed a beat. Happy to be able to audition the thing after the FOTM mania of the last few months - add in the price of my plane tickets and this has been an expensive amp indeed, but much better VFM than anything I saw in Singapore. Viva Mungkorn Gadget !
post #782 of 1153

i wanna look....

Bummer, iBasso shut down their site until the Chinese New Year is over, Feb.20th.

Can't even look at the description and spec pages of their products.

Just have to put my jonesing on hold til then....

.
post #783 of 1153
wow i got lucky then lol.
post #784 of 1153
Quote:
Originally Posted by estreeter View Post
Not sure why some are having issues - hooked mine up to my XP netbook today and it hasnt missed a beat. Happy to be able to audition the thing after the FOTM mania of the last few months - add in the price of my plane tickets and this has been an expensive amp indeed, but much better VFM than anything I saw in Singapore. Viva Mungkorn Gadget !
Havent read much about any issues, i had a slight problem with itunes but using winamp its flawless.
post #785 of 1153
do dac's burn in if you just have music playing but no headphones out? I wanna keep my d4 burning in but dont wanna leave my Mages on all night i guess i could throw my blose headphones on it
post #786 of 1153
Mine works in emulated Windows XP and real OSX
post #787 of 1153
Received both my D4 and DT880/600 headphones yesterday. I immediately hooked the D4 up to my Win7 machine and had a listen with both my W3s and new DT880s.

Windows recognized it right away and was playing the windows sounds and foobar through the D4 as I expected with no setup or problems. I didn't try itunes yet, though I expect it would have worked also because it seemed like the D4 automatically took over as the main sound card.

With the W3s, the sound is better than my iphone 3g headphone out, but not dramatically so. I tried to match the volume between the iphone and D4 as close as I could, and A/B some songs that I feel are good recordings to see what I could hear. This is my first amp and first dac too, and I'm not great at evaluating headphones, amps, or DACs yet, but to my ears, it seems that with the D4, the bass quantity is a tiny bit less, but the bass is a bit tighter and has a little more impact and clarity (basically not quite as boomy). Also, it seems to have a bit more presence (this might not be the right word), and it for sure has a lot more power. Either way, it does sound better, even if I can't quite describe exactly how and where yet. I can't wait to keep exploring different recordings and noting the improvements and differences.

With the DT880s, being 600 ohms, I didn't expect much of anything from the D4 as it says the input impedance range is up to 300 ohms. What I found is it seems to be able to drive them to be loud enough for a moderate listening volume, if the gain switch is up for higher gain, and the volume is at least 3 o'clock (5 o'clock being maximum). Some recordings required me to nearly max out the volume to get an acceptable volume for my liking, and I wasn't sure if this was good for it, so I refrained from doing it too much. Even though it reaches acceptable volumes, I get the feeling that it's not quite driving the headphones to their full potential. It seems to lack a little impact, specifically with bass, that I hope to get out of the MKIII which should be more appropriate for this impedance headphone. Still, the headphones sound great. I think they sounded a little better out of my AVR headphone out, or at least, it had enough power to get them as loud (or louder) than I would want. I can't wait for the LD MKIII to come in to see how these headphones fare with it, and to test the D4 as a pure DAC. I'm also curious to see if I notice any changes during the burn in of both.
post #788 of 1153
@ pj rage

I too just received my DT880/600 and the D4 doesn't even come close to driving them properly. However, you are in for a treat when you get your MKlll. My brother recently purchased both the DT880/600 and the MKlll to pair with them and they sound spectacular together, especially for the price range. What you read here on head-fi about the DT880/600 and tubes is totally true. They just seem to go together like peas in a pod (stupid analogy I know). Anyway, my new Beyers are hanging on the wall waiting for my MAD Ear+ HD to be built and shipped. I won't even listen to them until I get my tubes. Can't wait!

EDIT: I tried my D4 with the MKlll and DT880/600 and the combo sounds amazing.
post #789 of 1153
Quote:
Originally Posted by dongringo View Post
@ pj rage

I too just received my DT880/600 and the D4 doesn't even come close to driving them properly. However, you are in for a treat when you get your MKlll. My brother recently purchased both the DT880/600 and the MKlll to pair with them and they sound spectacular together, especially for the price range. What you read here on head-fi about the DT880/600 and tubes is totally true. They just seem to go together like peas in a pod (stupid analogy I know). Anyway, my new Beyers are hanging on the wall waiting for my MAD Ear+ HD to be built and shipped. I won't even listen to them until I get my tubes. Can't wait!

EDIT: I tried my D4 with the MKlll and DT880/600 and the combo sounds amazing.
Sweet! Thanks for the info, now I'm even more excited! I'm glad they are enjoying their well deserved vacation, but Chinese new year can't be over soon enough
post #790 of 1153
I have to say the Mage is a pretty sensitive headphone 21 ohm. But it definitely benefits quite a bit from a good amp. The bass is a little more present but with alot more impact the way i desired it from the beginning. It compliments the mage in just about every way i can think of. No negatives at all. The dac as a source is also very clean and sounds fantastic. Now with the Mage in my ears the midbass has impact like you can kinda feel the kickdrums etc. but still very very clean and quick. Loving them so far really makes me love the Mage that much more now. also no hiss whatsoever.
post #791 of 1153
I added the HiFlight Topkit to my D4, and it seems to have a little more power to drive the DT880/600s while I'm still waiting for the MKIII. They can definitely use more power still, and I'm sure they don't sound their best, but it seems that the topkit improved the power just enough that I can listen to them at reasonable volumes on pretty much all of my songs without taking the amp much if any past 3 o'clock (2 o'clock now for most songs). They sound so good even with the D4, I can't wait to hear them with the MKIII! I've actually been driving the DT880s at 5V mostly from the USB, and unless I go past 3 o'clock on the volume knob, it's almost imperceptibly the same when I switch to 9V. But too much volume on 5V, pretty much anything past 3 o'clock, results in blatant distortion that goes away when switching to 9V.

I still have to do some more A/Bing with the topkit for both the W3 and DT880s, though. I tried to listen very closely to the same songs before I swapped the opamps, and then listen closely after, and I'm not sure I heard too much of a difference (with the W3s), although like I said it seems that it gained a little bit of power in that I don't have to turn the volume knob up as much with the DT880s. I guess this could be attributed to other factors like burn in of the amp and/or headphones, or something else too though. I also want to try the topkit with the stock buffers and see how that changes things.

I don't know if, overall, these changes in sound are supposed to be really subtle to the point of barely noticing, or if they are really only noticeable with certain headphones, or if I just haven't trained my ears to hear them yet, but my W3s don't seem to benefit from the amp and opamp changes enough to really tell what's happening "for sure" (meaning ruling out any placebo effect). I'm now kind of curious to pick up a set of headphones or IEMs that will shine better with the D4, and will show off the differences in opamps and stuff, but also be a complement to the W3s and DT880/600s in that I will find a place for them. I was sort of thinking of some RE0s, or maybe some Grado SR125 or SR225s. Any ideas here?
post #792 of 1153
Quote:
Originally Posted by pj_rage View Post
I was sort of thinking of some RE0s, or maybe some Grado SR125 or SR225s. Any ideas here?
As I type this, my D4 is churning through my iTunes collection with a pair of SR60s hooked up, running both in together although I liked the sound of both toys straight from the box. I genuinely believe that an amp will 'open up' with a hundred or so hours on it, but I'm just enjoying the ride for now - endless burn-in debates go nowhere. Important thing is not to expect a 180 deg difference in anything : thats where the debate gets a little silly for mine.

Bought the SR60 so that I can sit down and determine how much better the 325is is over the base model - have to say that the little guy is very enjoyable for the money but clearly doesnt have the refinement of its bigger brother.

Switching from my K501 to the Grados with the D4 means turning the volume control down considerably - you wont have any trouble driving a pair of Grados with this amp, although a better amp will always do a better job of driving them to their full potential.
post #793 of 1153
I just received my D4 this morning and can finally quell all the talk about not being able to run the D4 as an amplifier both on USB as well as on battery!

In my version, (early feb), once the USB is plugged into the D4, i can either choose to play songs through USB via winamp or if i choose to use it purely as an amp, with the USB cable still attached and no internal battery, connect my iPod via LOD into the Aux/in and use my headphones for listening on the Headphone out of the D4.

That effectively means i would only need to use battery in the D4 only when 1) i need it as a portable amp for my iPod via LOD away from a USB source or 2) if i wanna use the 9v function when still connected via USB(even though i could very well use the D4 on 5v and not provide any battery power whatsoever)!

Hope this helps anyone looking for an answer to the above question!
post #794 of 1153
Quote:
Originally Posted by crumpler View Post
I just received my D4 this morning and can finally quell all the talk about not being able to run the D4 as an amplifier both on USB as well as on battery!

In my version, (early feb), once the USB is plugged into the D4, i can either choose to play songs through USB via winamp or if i choose to use it purely as an amp, with the USB cable still attached and no internal battery, connect my iPod via LOD into the Aux/in and use my headphones for listening on the Headphone out of the D4.

That effectively means i would only need to use battery in the D4 only when 1) i need it as a portable amp for my iPod via LOD away from a USB source or 2) if i wanna use the 9v function when still connected via USB(even though i could very well use the D4 on 5v and not provide any battery power whatsoever)!

Hope this helps anyone looking for an answer to the above question!
This is exactly what I've found with my unit as well.
post #795 of 1153
Thread Starter 
Thanks Madwolf, I got the caps and resistors needed to repair and modify my D4. I am letting it burn in now. I just love soldering dust. :^) Some of these SMD parts are so little they really are meant for the oven. I had to redo a DACT attenuator once and it was the same thing but I had a nice desk mounted and illuminated magnifier that made the work much easier but now it is in storage so a bit more of a challenge. I will report back later on sound impressions.
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