Gustard A20H DAC (Dual AK4497EQ, analog preamp, headphone amp, all in one)
May 15, 2017 at 5:26 AM Post #301 of 391
Anyone tried this dac with hydra z/singxer su-1 or other USB to I2S converters?
I want to connect it to my system via i2s input and get DSD512, but dont know if it plays better via i2s at all, it is question of $1000, price of this dac :)

What i found on internet, that other dacs with usb and i2s have better implementation of i2s and when you stream music to USB input, inside dac this signal converts and goes via i2s path anyway. I mean, then we have additional chain and conversion. With hydra z we also have this additional conversion, but its implemented much better (maybe :) ).
 
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May 25, 2017 at 3:23 PM Post #302 of 391
Anyone tried this dac with hydra z/singxer su-1 or other USB to I2S converters?
I want to connect it to my system via i2s input and get DSD512, but dont know if it plays better via i2s at all, it is question of $1000, price of this dac :)

What i found on internet, that other dacs with usb and i2s have better implementation of i2s and when you stream music to USB input, inside dac this signal converts and goes via i2s path anyway. I mean, then we have additional chain and conversion. With hydra z we also have this additional conversion, but its implemented much better (maybe :) ).


Much much better, have a20h and singxer su-1 , usb and hdmi i2s very important, power cable for singxer too.
 
Jun 14, 2017 at 11:06 PM Post #304 of 391
Reading through the thread it's pretty clear that the DAC is good but how would the headphone amp compare to the Questyle CMA600i and/or Audio-GD NFB 28.28? I'm primarily going to be using Focal Elears through the balanced output and Sennheiser HD700's single ended (unless I get around to ordering a balanced cable for it too).

I'm thinking the CMA600i probably has the better headphone amp but is it $450 better? This, in all likelihood, will by me endgame amp/dac, and if that $450 would be well spent than that's the route I'll go.
 
Jul 28, 2017 at 12:17 PM Post #308 of 391
Hi all. To those that have heard the A20H, I have two questions.
1. Where would you say the sound signature lies - neutral, slightly warm / full bodied, or slightly cold / bright?
2. Does it have enough power and/or voltage swing to effectively drive and control the HD800?

Thanks in advance for any feedback!
 
Jul 28, 2017 at 12:27 PM Post #309 of 391
Slightly warm and bodied.
It will drive hd800 with enough headroom.
My t1 has been driven which has 600ohm with balanced cable with easy.
 
Jul 29, 2017 at 11:51 AM Post #311 of 391
Many thanks for the reply. I see the listed spec is around 264mw into 300 ohm. Does anyone know if this is SE or balanced, and if SA, what the balanced output is?

Do you need volume set to a high level to control the HD800?

Full specs are as below but don't know if it's SE or balanced.

32Ω 2400mW
64Ω 1230mW
150Ω 530 mW
300Ω 264 mW
600Ω 132 mW
 
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Jul 30, 2017 at 4:09 AM Post #312 of 391
Many thanks for the reply. I see the listed spec is around 264mw into 300 ohm. Does anyone know if this is SE or balanced, and if SA, what the balanced output is?

Do you need volume set to a high level to control the HD800?

Full specs are as below but don't know if it's SE or balanced.

32Ω 2400mW
64Ω 1230mW
150Ω 530 mW
300Ω 264 mW
600Ω 132 mW

It is balanced.

And these are the numbers for SE:

16Ω 1200mW
32Ω 600mW
150Ω 133mW
300Ω 67mW
600Ω 33mW
 
Jul 30, 2017 at 6:15 AM Post #313 of 391
It is balanced.

And these are the numbers for SE:

16Ω 1200mW
32Ω 600mW
150Ω 133mW
300Ω 67mW
600Ω 33mW

Many thanks. Pity - was hoping balanced would be higher. Did you perhaps listen to it with the HD800 and, if so, do you feel it had sufficient power for to control it properly?
 
Jul 30, 2017 at 7:26 AM Post #314 of 391
I do not have 800, sorry.
Hifiman HE400i with their low sensitivity are driven pretty well with SE though.
Later i am going make balanced cable and try those with BL, till then SE impressions only.
 

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