New Portable Amp/Dac: iBasso D1 **with updates on the first page**
Oct 28, 2007 at 4:00 AM Post #1,876 of 2,626
Hmm... my D1 cuts out from time to time. I think it happens when I load the USB ports.
 
Oct 28, 2007 at 4:07 AM Post #1,877 of 2,626
Quote:

Originally Posted by wrecked_porsche /img/forum/go_quote.gif
Thanks for the replies guys. I'll try to find another mini usb cable and try. Its gotten to a point of irritation now. Last night I was really enjoying my music and then I moved a little and my headphone cable kinda tugged on my D1 just a little... then it happened again. The damn thing just froze. The slightest thig triggers it off.
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I had to unplug the usb and put it in back again, then restart foobar2k for it to play.
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BTW, the green LED is kinda cool when used in the dark because on the front its BLUE, and the back its GREEN. Gives a cool effect. However the green is SLIGHTLY brighter than the blue one. I got my D1 last Friday(last week) in case anyone is wondering.

My D1 has about 100hrs burn in, I LOVE the sound. The separation of instruments and sound-stage are awesome. The only thing driving me mad is the sound cutting off/foobar2k freezing up when the cable gets moved around by just a smidgen.

I have a few more questions and I'd really appreciate it if you guys could help me out here.

1)Am I the only one here besides "Monster_Omelette" who has this problem? I want to find out how common the problem is, if its quite common, then I think there is no point in me sending mine back since there is a high chance the new one will have the same problem too right? I use it on my laptop by my bedside, maybe that's why I notice this problem more. I mean on your desktops, you don't have to move it at all, but my laptop gets moved a little here and there, like repositioning by a foot or two every now and then.
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But its not like I'm lifting both my laptop and the ibasso up and shaking ;em to death. The iBasso is on a chair next to my bad, the laptop is on another chair. Both side by side. I hope you get what i mean?
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Maybe most of you guys are using it on your desktop, which is why you don't notice this problem?
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2)Anyone has any idea why its happening? I mean like is there like the usb input port on the amp like touching any other component? Must I open up the amp to fix this by say, bending some cap or something away from the usb input? I'd really like to know how to fix this besides swapping cables. Its driving me nuts... I just wanna enjoy my music uninterrupted.
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For every hour that I listen, the problem is sure to crop up at least once.

3)If all else fails, is this considered as a faulty amp? I wonder if iBasso will swap it for me.
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Thanks guys, you've really been helpful.
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Sorry about the long and gloomy post, but I just want to get back to uninterrupted audio bliss. I just want to sink into my music and get lost, the iBasso jams up and brings me back to reality....
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I've experience this problem twice, in the same day, but my conditions are a bit different.

I'm using mine on my desktop PC, when I was playing dota, the sound suddenly cuts off(I didnt touch the D1), I have to replug the USB to make it work, I thought it's the cable problem, but no mather how I twiggle it it didnt cut off.(maybe it's not the cable problem after all)
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Maybe it's just that I'm using USB1.1(crappy computer). After that day I've never experienced the cutoff.(even when playing dota)
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Oct 28, 2007 at 4:26 AM Post #1,878 of 2,626
Quote:

Originally Posted by HiFlight /img/forum/go_quote.gif
Yes, you only need 2 AD797s to replace the AD823 Dual that is standard. The L&R channel socket is the one closest to the right edge of the amplifier. There is a single socket (LR), then 3 caps, then 2 side by side buffer sockets. The DAC socket is furthest to the rear of the amp.

The standard buffers are NE5532s and the DAC is an AD8616.



Okay Thanks! I am going to order 4 AD797's just to have spares to play with in other DAC/amps. I think I am going to go with the soic8 package instead of DIP8's though.
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Oct 28, 2007 at 4:29 AM Post #1,879 of 2,626
Quote:

Originally Posted by HiFlight /img/forum/go_quote.gif
Ask and ye shall receive!!! The new adapter:

NewAdapter.jpg



Oh my gosh! I think I ordered the wrong connectors!!!
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LOL!
 
Oct 28, 2007 at 5:39 AM Post #1,880 of 2,626
Quote:

Originally Posted by HiFlight /img/forum/go_quote.gif
I think that will work just fine. It is worded backwards, but still looks like the correct one. 2 singles to 1 dual.


Thank you for the information. Could be possible to bypass the iBasso D1 buffer sockets with the dual dummy Op-Amp adapter (see attached picture) that Dr. Xin sells? Which are the buffer sockets input/outputs pins that I need to jumper?

Thanks,
 
Oct 28, 2007 at 5:44 AM Post #1,882 of 2,626
Quote:

Originally Posted by Sieg9198 /img/forum/go_quote.gif
I've experience this problem twice, in the same day, but my conditions are a bit different.

I'm using mine on my desktop PC, when I was playing dota, the sound suddenly cuts off(I didnt touch the D1), I have to replug the USB to make it work, I thought it's the cable problem, but no mather how I twiggle it it didnt cut off.(maybe it's not the cable problem after all)
confused.gif


Maybe it's just that I'm using USB1.1(crappy computer). After that day I've never experienced the cutoff.(even when playing dota)
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Well I only seem to get the aforementioned problem when using USB on my laptop, I haven't experienced the problem on my desktop YET. But that remains to be seen.
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My Laptop is USB 1.1
My Desktop is USB 2.0

I wonder if that makes a difference?
 
Oct 28, 2007 at 7:18 AM Post #1,887 of 2,626
Quote:

Originally Posted by wrecked_porsche /img/forum/go_quote.gif
My laptop is XP home and USB1.1, my desktop is USB2.0 with XP Pro.

Problem only seems to be happening with my laptop.
Just as I was typing this, the darn problem happened again...

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That USB 1.1 could be why. But even so, try a third cable. It could be because you move your laptop around that this happens.

Also, I have only used the USB, never coax.
 
Oct 28, 2007 at 8:14 AM Post #1,888 of 2,626
Well it happened again (foobar2k froze up) just now even with out me touching the usb cables or anything, just happened by itself. I left it playing and went for lunch, when I came back it had froze.
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I guess I'll reformat my laptop as "yuheng" suggested a few pages back.
I was planning on a reformat after my exams(next two weeks) anyway, so I guess I'll try that and see if it works...
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Oct 28, 2007 at 9:43 AM Post #1,889 of 2,626
At long last I had a reason to bare my D1 again:



The first set of opamps has been put in and is playing right now.

So far the "old" standard configuration of ADA4841 in the DAC and OPA211 with AD8397 buffers performs very well, really nice soundstage, as for the rest they need to burn in a bit.
 
Oct 28, 2007 at 12:13 PM Post #1,890 of 2,626
Quote:

Originally Posted by bpfiguer /img/forum/go_quote.gif
Thank you for the information. Could be possible to bypass the iBasso D1 buffer sockets with the dual dummy Op-Amp adapter (see attached picture) that Dr. Xin sells? Which are the buffer sockets input/outputs pins that I need to jumper?

Thanks,



The dual dummies should work just fine. One needs to jumper pins 1-3 & 5-7 for dual opamp sockets.

There is a picture on the FAQ sticky here:

http://www.fixup.net/talk/topic.asp?TOPIC_ID=37

Scroll down until you see the picture of the socket with red jumper wires.
 

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