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New Portable Amp/Dac: iBasso D1 **with updates on the first page** - Page 70

post #1036 of 2626
Quote:
Originally Posted by mrarroyo View Post
Tomorrow I am scheduled to receive the replacement D1 from iBasso. For those that do not remember it will replace the one I have had since 9/4 and on which the blue light on the front panel stoped working before the 12 hour mark. Excellent customer service by iBasso.

The funny/sad thing is that the blue ligth started working today on its own. ??? Besides a gremlin, any idea why a light that went out a week ago just started working w/o any work done to it? I mean I feel bad that iBasso spent money to send me a new D1 and the one I have starts working on its own 24 hours before the arrival of its replacement. Thanks.
Don't feel bad. The same happened with mine, but then it went off again just before I sent it back. They are about to send my third D1 (think of the shipping costs!). My second one also had a different led problem. They say they have had very poor quality leds supplied and this has now been seen to.

These are very basic things that should work.

Having said that, they could teach a lot of much bigger companies about customer service, despite the long distances involved.
post #1037 of 2626
Quote:
Originally Posted by HeadphoneAddict View Post
Yeah, I just added an H140 to my two refurbished H120's (one still sealed in box).
so do u wan to let go one h120 to me.
post #1038 of 2626
Quote:
Originally Posted by nv88 View Post
Can someone share the source for the iRiver H120/140s? I've got a H120, but would like to pick up a H140 as well. Are these refurbished or old new stock?
I got lucky to get my second H140 from this forum, another possible source is MisticRiver forums: http://www.misticriver.net/forums.php.

They used to be available in large numbers (mostly used) on eBay, but about a year ago they disappeared and it is very hard to find one.

Good luck. And nothing's stopping you to put up WTB H140 on FS forum here, that's how I got mine.
post #1039 of 2626

D1 DAC opamp substitute

I have felt for some time that the DAC of the D1 sounded brighter than I preferred. Some types of music sounded rather shrill in the treble, so I spent some time trying various opamps in the DAC socket. Most demonstrated little or no refinement over the OEM AD8616.

I finally gave the AD8656 a try. What a remarkable improvement! Much fuller sound, well-defined bass with smooth natural treble. Very nice soundstage. I highly recommend this opamp as a replacement for the 8616.
post #1040 of 2626
yuheng, I'll PM you but there might be one person ahead of you, unless this your second time to ask...
post #1041 of 2626
Hah - yuheng you were the other person interested, and the second time to ask.

http://www.head-fi.org/forums/showpo...&postcount=981
post #1042 of 2626
Quote:
Originally Posted by HiFlight View Post
I have felt for some time that the DAC of the D1 sounded brighter than I preferred. Some types of music sounded rather shrill in the treble, so I spent some time trying various opamps in the DAC socket. Most demonstrated little or no refinement over the OEM AD8616.

I finally gave the AD8656 a try. What a remarkable improvement! Much fuller sound, well-defined bass with smooth natural treble. Very nice soundstage. I highly recommend this opamp as a replacement for the 8616.
Cool!

Ron, is the AD8656 SOIC or DIP-8?
post #1043 of 2626
Wow another update! The D1 is really full of surprise! I can't wait to receive mine. I don't know if i will be able to buy all of the components right away as i just bought a Lavry DA10 but maybe next week
post #1044 of 2626
Quote:
Originally Posted by Dexdexter View Post
Cool!

Ron, is the AD8656 SOIC or DIP-8?
It is an SOIC and needs to be mounted on an adapter. To clear the SMD caps on the end and sides of the socket, there also needs to be a standoff installed. I had a spare adapter, but the easiest and cheapest is a Radio Shack low profile DIP socket. A pack of 3 is only about a dollar. The Browndog plugs into the DIP socket, then the 2 are plugged as a unit into the D1 socket.
post #1045 of 2626
Quote:
Originally Posted by HiFlight View Post
I have felt for some time that the DAC of the D1 sounded brighter than I preferred. Some types of music sounded rather shrill in the treble, so I spent some time trying various opamps in the DAC socket. Most demonstrated little or no refinement over the OEM AD8616.

I finally gave the AD8656 a try. What a remarkable improvement! Much fuller sound, well-defined bass with smooth natural treble. Very nice soundstage. I highly recommend this opamp as a replacement for the 8616.
What about the AD8066 - vs the AD8656? Jamato8 seems to like that one in the AMP, maybe it will do well in the DAC too. I've that extra one too.

However, if all the listening is with the HD600's, I think the high end will be a bonus.
post #1046 of 2626
Quote:
Originally Posted by HiFlight View Post
I have felt for some time that the DAC of the D1 sounded brighter than I preferred. Some types of music sounded rather shrill in the treble, so I spent some time trying various opamps in the DAC socket. Most demonstrated little or no refinement over the OEM AD8616.

I finally gave the AD8656 a try. What a remarkable improvement! Much fuller sound, well-defined bass with smooth natural treble. Very nice soundstage. I highly recommend this opamp as a replacement for the 8616.
Ron, remember that email I sent you? In it I described how much better the 8656 sounded in the Supermacro LE versus the 8616. Glad you gave it a try, now please bring a second one with you Saturday so we can install it in my D1.
post #1047 of 2626
Quote:
Originally Posted by HeadphoneAddict View Post
What about the AD8066 - vs the AD8656? Jamato8 seems to like that one.

However, if all the listening is with the HD600's, I think the high end will be a bonus.
John is using the 8066 in the LR, not the DAC. The 8066 is a good sounding opamp. It is in my top 5. IMHO, it does not have enough output current for optimum results in the DAC amp.
post #1048 of 2626
Could you please provide the cat. # of the Radio Shack low profile DIP socket?

Thanks,

Quote:
Originally Posted by HiFlight View Post
It is an SOIC and needs to be mounted on an adapter. To clear the SMD caps on the end and sides of the socket, there also needs to be a standoff installed. I had a spare adapter, but the easiest and cheapest is a Radio Shack low profile DIP socket. A pack of 3 is only about a dollar. The Browndog plugs into the DIP socket, then the 2 are plugged as a unit into the D1 socket.
post #1049 of 2626
Quote:
Originally Posted by HiFlight View Post
It is an SOIC and needs to be mounted on an adapter. To clear the SMD caps on the end and sides of the socket, there also needs to be a standoff installed. I had a spare adapter, but the easiest and cheapest is a Radio Shack low profile DIP socket. A pack of 3 is only about a dollar. The Browndog plugs into the DIP socket, then the 2 are plugged as a unit into the D1 socket.

Is this the low profile Dip Socket you are referring to.

http://www.radioshack.com/product/in...entPage=search


Back to the LR Opamp
Also what do you think of the LTC6241HV vs LTC8241HVCS8 you have mentioned both as being very tube like, which do you think is beter?
post #1050 of 2626
Quote:
Originally Posted by zer010gic View Post
Is this the low profile Dip Socket you are referring to.

http://www.radioshack.com/product/in...entPage=search


Back to the LR Opamp
Also what do you think of the LTC6241HV vs LTC8241HVCS8 you have mentioned both as being very tube like, which do you think is beter?
The socket part of the adapter looks the same, except mine have straight legs. Those in the picture look bent somewhat. I would also imagine that Browndog has standoffs on their website also.

The LTC 8241 was a typo. There is no such animal. The LTC6241HV is the same as the HVCS8. My first 2 D1 choices are still the OPA2111 and the AD8599.
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