This is a detailed measurements and review of Emotiva DC-1 DAC. It is kindly loaned to me by member Sal1950. It retails for $499 including shipping from Emotiva direct. The features and size is very close to my recently reviewed Topping DX7 DAC.
As you see in above picture it has extensive set of inputs and outputs. We get USB, Coax and Toslink S/PDIF, and balanced AES/EBU digital input. But we also get an analog input! On the output side we have both balanced and unbalanced. It includes a built-in power supply with a toroidal transformer which I appreciate at this price point.
Headphone output is oddly limited to 3.5 mm headphone jack. With such a big box why not put a TRS style one too so that I don't have to use an adapter with headphones like Sennheiser that come that way? The Topping DX7 comes with such a connection and a balanced one for good measure.
The unit came with tall, rubbery and super flexible feet. Not sure if this is a tweak from Sal or it comes this way from the factory. Either way, subjectivists should rejoice that this tweak is built-in.
This is a strictly PCM DAC supporting sample rates up to 192 Khz. On this front, the Topping DX7 is superior by supporting DSD formats (although it lacks the analog input of Emotiva DC-1).
As you see there is a blue OLED display. The industrial design is not to my taste with those curves and such but I assume that is the same "design language" they use in their other products. Case work is thin sheet metal compared to machined aluminum one from Topping. So somewhat cheaper looking and feeling. The two optical encoders for the input and volume feel good though and work well.
Let's measure the unit and see how it does. Note that rest of the measurements are from my previous work and not repeated here again.
Measurements
As usual let's start with our jitter/noise test using the USB input:
Not a good first impression there. The Emotiva DAC-1 has higher noise floor, fair bit of low frequency jitter around our main tone of 12 Khz and an "idle tone" at 17 Khz. At > -100 db, not an audible concern but from engineering hygiene, better work could have been done to avoid these. There are also some noise spikes at low frequencies.
Let's jump into one of my favorite tests, linearity using Coax S/PDIF input. Here, an ideal DAC would produce a flat line. No real DAC does though and deviations occur as the amplitude of our digital signal gets smaller and smaller (to the left):
We see performance that is better than 16 bits using my (arbitrary) 0.1 dB of deviation to the tune of 17 bits. The topping DX7 does better getting us 18.6 bits using the same criteria.
Jumping to the other extreme of a boring measurement is the frequency response:
Seems like its reconstruction filter is a bit more gentle than the Topping DX-7 DAC in its "fast" mode.
Let's look at the classic 1 Khz distortion+noise test where the 1 Khz tone itself is filtered out and the spectrum of the rest shown:
Overall the distortion is lower with the Emotiva DC-1. As a measured number its THD+N is 2 db better than Topping DX7 DAC.
Another test that I have started to like is the SMPTE Intermodulation Test. As the name indicates, this uses two tones and measures what extra distortion is created due to any non-linearities in the DAC:
We see an issue here with Emotiva DC-1 where below -30 dBFS, more distortion is generated when levels are reduced below -30 dbFS. Whether that is noise, distortion or both, is hard to say here.
We get more insight when we look at the spectrum of distortion products:
Interesting results. The Emotiva DC-1 does very well in low frequencies but there is a sudden jump in noise/distortion above 10 Khz. For that matter, my expensive $3,500 Exasound E32 suffers from the same illness.
Conclusions
The Emotiva DC-1 has excellent connectivity especially given its one analog input. Objectively though not playing DSD is a miss. And measured performance often falls below that of Topping DX-7 which is $100 cheaper. If you don't need the analog input, my recommendation remains to purchase the Topping DX-7. If you do, currently the Emotiva DC-1 is the only DAC I have tested with analog input.
Edit: headphone measurements in this post: https://www.audiosciencereview.com/...ew-of-emotiva-dc-1-dac.2306/page-2#post-63288
As you see in above picture it has extensive set of inputs and outputs. We get USB, Coax and Toslink S/PDIF, and balanced AES/EBU digital input. But we also get an analog input! On the output side we have both balanced and unbalanced. It includes a built-in power supply with a toroidal transformer which I appreciate at this price point.
Headphone output is oddly limited to 3.5 mm headphone jack. With such a big box why not put a TRS style one too so that I don't have to use an adapter with headphones like Sennheiser that come that way? The Topping DX7 comes with such a connection and a balanced one for good measure.
The unit came with tall, rubbery and super flexible feet. Not sure if this is a tweak from Sal or it comes this way from the factory. Either way, subjectivists should rejoice that this tweak is built-in.
This is a strictly PCM DAC supporting sample rates up to 192 Khz. On this front, the Topping DX7 is superior by supporting DSD formats (although it lacks the analog input of Emotiva DC-1).
As you see there is a blue OLED display. The industrial design is not to my taste with those curves and such but I assume that is the same "design language" they use in their other products. Case work is thin sheet metal compared to machined aluminum one from Topping. So somewhat cheaper looking and feeling. The two optical encoders for the input and volume feel good though and work well.
Let's measure the unit and see how it does. Note that rest of the measurements are from my previous work and not repeated here again.
Measurements
As usual let's start with our jitter/noise test using the USB input:
Not a good first impression there. The Emotiva DAC-1 has higher noise floor, fair bit of low frequency jitter around our main tone of 12 Khz and an "idle tone" at 17 Khz. At > -100 db, not an audible concern but from engineering hygiene, better work could have been done to avoid these. There are also some noise spikes at low frequencies.
Let's jump into one of my favorite tests, linearity using Coax S/PDIF input. Here, an ideal DAC would produce a flat line. No real DAC does though and deviations occur as the amplitude of our digital signal gets smaller and smaller (to the left):
We see performance that is better than 16 bits using my (arbitrary) 0.1 dB of deviation to the tune of 17 bits. The topping DX7 does better getting us 18.6 bits using the same criteria.
Jumping to the other extreme of a boring measurement is the frequency response:
Seems like its reconstruction filter is a bit more gentle than the Topping DX-7 DAC in its "fast" mode.
Let's look at the classic 1 Khz distortion+noise test where the 1 Khz tone itself is filtered out and the spectrum of the rest shown:
Overall the distortion is lower with the Emotiva DC-1. As a measured number its THD+N is 2 db better than Topping DX7 DAC.
Another test that I have started to like is the SMPTE Intermodulation Test. As the name indicates, this uses two tones and measures what extra distortion is created due to any non-linearities in the DAC:
We see an issue here with Emotiva DC-1 where below -30 dBFS, more distortion is generated when levels are reduced below -30 dbFS. Whether that is noise, distortion or both, is hard to say here.
We get more insight when we look at the spectrum of distortion products:
Interesting results. The Emotiva DC-1 does very well in low frequencies but there is a sudden jump in noise/distortion above 10 Khz. For that matter, my expensive $3,500 Exasound E32 suffers from the same illness.
Conclusions
The Emotiva DC-1 has excellent connectivity especially given its one analog input. Objectively though not playing DSD is a miss. And measured performance often falls below that of Topping DX-7 which is $100 cheaper. If you don't need the analog input, my recommendation remains to purchase the Topping DX-7. If you do, currently the Emotiva DC-1 is the only DAC I have tested with analog input.
Edit: headphone measurements in this post: https://www.audiosciencereview.com/...ew-of-emotiva-dc-1-dac.2306/page-2#post-63288
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