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Old 21st November 2012, 07:01 PM   #91
azimut is offline azimut  Italy
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Different system, different eviroment, different ears, another head...that is how subjectivity plays a big role in these toys
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Old 21st November 2012, 07:19 PM   #92
cotdt is offline cotdt  United States
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Mine sound very very good, but also completely different from my AD1852 and Twisted Pear DACs with discrete output stages. I didn't notice "an overly forward midrange" as my other DACs have even more forward midranges and I prefer that sound. It's on par with high end DACs, just sounds very different.

I found it quite good for driving headphones directly, but it sounds smoother with a headphone amp.

There is a slight hiss if you turn up your amp's gain with no music playing. Not a big deal.
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Old 22nd November 2012, 11:08 AM   #93
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Hi, I just come by and find this topic today. And I'm very glad that you like this toy
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Old 22nd November 2012, 11:11 AM   #94
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Originally Posted by cotdt View Post
There is a slight hiss if you turn up your amp's gain with no music playing. Not a big deal.
the liss always comes from different DC level of 2 systems. May be you can check if the input of amp is 0VDC or not. And add coupling caps if there is difference.
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Old 22nd November 2012, 11:20 AM   #95
lohk is offline lohk  Europe
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Originally Posted by hifimediy View Post
Hi, I just come by and find this topic today. And I'm very glad that you like this toy
I like this "toy" a lot, also with this price this is quite something! I have already bought two of them (Vers. 1 and Vers.1.1, the difference is small and somehow interesting).

Until now I have only used this device for secondary purposes, but I think it will be great fun to "tweak" a little bit more out of it. As there is already a number of very good details built in and good parts too. Can you post the schematics and maybe more details about the DAC?
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Old 23rd November 2012, 10:31 AM   #96
azimut is offline azimut  Italy
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Yeah! I was wondering if there is a way to jump tenor and feed directly the ess9023 by a i2s signal...
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Old 26th November 2012, 06:45 PM   #97
conket is offline conket  United States
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Just ordered one to try out. Thank you Guys.
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Old 29th November 2012, 07:40 PM   #98
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Yeah! I was wondering if there is a way to jump tenor and feed directly the ess9023 by a i2s signal...
Me too. I have some Audio GD TE8802 boards and a CM6631 USB->I2S assy coming. 24bit 192kHz USB to I2S / SPDIF PCB CM6631 with ultralow noise 6.5uV regulator | eBay

I envision a 4PDT center off toggle switch, or would that mess with the I2S signals too much? When I bought the TE8802 boards I got plenty of extra RJ45 to ribbon-wire adapter boards too. [I do not see them offered there any more]

The TE8802 needs some clean 3.3V. The CM6631 board uses USB power? [easily changed]. Meanwhile Audio GD has, I think, switched to
VIA Vinyl EnvyUSB 2.0 Audio Controller

VT1730?
VIA Vinyl EnvyUSB 2.0 Audio Controller - VIA Technologies, Inc.
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Old 14th December 2012, 04:02 PM   #99
McDark is offline McDark  Russian Federation
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The HRT absolutely trounced it -- it isn't even worth going into the details. The uDAC wasn't quite so obviously better but after listening to a few tracks it was (to my ears) clear that the uDAC was the better unit. The most noticeable flaw in this $42 DAC is that the midrange is overly forward and at times strident.
I have to disagree. While most reviewers preferring uDAC2 over HRT+ (thats explainable considering DACs used) I personally compared mine uDAC2 with this DAC and uDAC is worse mostly in midrange, bass is slightly better defined here too. Thats easily explainable since uDAC has TPA4411 headphone driver on its output which is far from being audiophile with THD+N about 0.1% @ 1 KHz (but it allows to control volume and drive wider range of headphones and has no output caps, voila!). Easily, to me this DAC is a clear winner in all areas, being used with UCD180 amp or AD700 cans.

Not to mention one of mine uDACS amp has failed at once (it is common for TPA4411 which is used on many notebooks btw) and I had to connect ES9023 output directly to RCA. This one is undistinguishable from this DAC and thats perfectly explainable too. There is no magic left these days, at least in DIY forums

mfaughn, since you are only one who noticed this amount of differences between this DAC and buffered version (uDAC2) only explanation could be serious input impedance problems on your amp.
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Last edited by McDark; 14th December 2012 at 04:23 PM.
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Old 14th December 2012, 09:25 PM   #100
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Having listened to my HiFimedDAC for several months now, on various earbuds and headphones. I have never found the midrange forward and strident.

I still think it is the best value I have ever purchased.

Looking forward to the next best value.
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