seanyang
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- Feb 4, 2022
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I have measured the Moon Drop Dawn Pro with Audio Precision APx555 recently and I would like to share with you. I bought the Dawn Pro myself.
Here's the specifications from the manufacture. Just in case.
The Dawn Pro is a small and light DAC/Headphone AMP, Only 42mm * 22.45mm * 12.39mm and weighted 13grams. According to the manufacture, it can drive a 16Ohm headphone with 120mW.
Although I know it has been designed as a Headphone amp. Due to it has the 4.4mm balanced output. I prefer to use it with a 4.4mm to 2XLR cable as a regular DAC, and this is exactly how I measured with AP.
Here's the measurements with the Bench mode. I'm using the ASIO and set Dawn Pro volume all the way up. Sampling rate set to 48KHz and the output set to 0dBFS by the way.
Very shocking data to me for the tiny size and USB bus powerd device. And almost exactly the same as the Moon Drop official measurement.
As this DAC using CS43131 chip, I have tested the Multi-tone to see if this DAC also has the bug that most CS43131 powerd DAC do.
This is test with 0dBFS output.
And here is the -1dBFS output. I assume that Moon Drop has avoided that bug? Or maybe there's some mistake I made. Please leave a comment if I did something wrong.
Since it's so small that I often can't find it, I made an adapter for it, so it can attached with my key rings. lol
Conclutions
I'm pretty happy to see such small but powerful DAC on the market. I tried this with my Moon Drop Para Planer headphone which has 8Ohm Impedance, Unfortunately it can't drive it well even with balanced cable. But I'm sure it can work well with higher impedance and sesitivity headphones.
And it works as regular DAC for me.
-----------
I'm newbe here and tring to manipulate the APx555 well.
I would like to know how to test the jitter. I have tried to run the jitter vs freq in sequence mode but it seems it won't work with ASIO output. Hope to get your help, Thanks.
Here's the specifications from the manufacture. Just in case.
The Dawn Pro is a small and light DAC/Headphone AMP, Only 42mm * 22.45mm * 12.39mm and weighted 13grams. According to the manufacture, it can drive a 16Ohm headphone with 120mW.
Although I know it has been designed as a Headphone amp. Due to it has the 4.4mm balanced output. I prefer to use it with a 4.4mm to 2XLR cable as a regular DAC, and this is exactly how I measured with AP.
Here's the measurements with the Bench mode. I'm using the ASIO and set Dawn Pro volume all the way up. Sampling rate set to 48KHz and the output set to 0dBFS by the way.
Very shocking data to me for the tiny size and USB bus powerd device. And almost exactly the same as the Moon Drop official measurement.
As this DAC using CS43131 chip, I have tested the Multi-tone to see if this DAC also has the bug that most CS43131 powerd DAC do.
This is test with 0dBFS output.
And here is the -1dBFS output. I assume that Moon Drop has avoided that bug? Or maybe there's some mistake I made. Please leave a comment if I did something wrong.
Since it's so small that I often can't find it, I made an adapter for it, so it can attached with my key rings. lol
Conclutions
I'm pretty happy to see such small but powerful DAC on the market. I tried this with my Moon Drop Para Planer headphone which has 8Ohm Impedance, Unfortunately it can't drive it well even with balanced cable. But I'm sure it can work well with higher impedance and sesitivity headphones.
And it works as regular DAC for me.
-----------
I'm newbe here and tring to manipulate the APx555 well.
I would like to know how to test the jitter. I have tried to run the jitter vs freq in sequence mode but it seems it won't work with ASIO output. Hope to get your help, Thanks.
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