Benchmark DAC2 HGC initial review

Randy Myers

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I just received my Benchmark DAC2 HGC to replace the NuPrime DAC-10H. I am very impressed with NuPrime as a company and their CEO Jason in particular and will never say anything but good things about the company, however I have been having an issue with the DAC-10H in my system. It has become apparent that the issue can probably not be resolved currently. I am not 100% convinced that the issue is not a defect in the unit itself, but I decided to go a different direction.

I did considerable research including talking directly with engineers and representatives from other companies. Benchmark came away impressing me the most, both reviews and speaking with one of their engineers. I like the way that they emphasis neutral non-colored above all else. Also that they are designed as professional grade gear and according to their engineer are used in many recording studios.

The Benchmark DAC is rated as comparing to some of the best available. It plays all my PCM files and DSD files perfectly with no clipping what so ever (that I have noticed anyway). The unit very much has an industrial look and feel to it. Even many of the over all settings, such as the XLR output gain, are set with jumpers on the main board. Very much in the vain of industrial, or professional gear if you will. Even the lights which display the resolution of the file being played are done in what I would consider industrial method. The bit rate lights either a 16 bit or 24 bit LED, the resolution lights either 44 or 48, the word length is either off, 2x or 4x. Therefore the 24 bit, 48 res, and 4x word length would be lite to indicate a 192 kHz file. Very much industrial orientation. It also displays the signal coming from the Remedy (for Redbooks) correctly as 96 kHz, which the NuPrime never did.

I am sure there is a break in period needed, but so far the unit is very smooth and natural sounding with no digital glare that I can notice. There is no indication of clipping what so ever and the most neutral and natural sounding of the eight different DACs that I have tried along this journey. I fully anticipate that the sound will open up even more with time breaking in the unit.

The Benchmark also has two analog inputs, one to run my SACD through and another if I decided to later add a turntable (phone preamp would be needed). They use a specially designed Hybrid Gain Control (HGC), utilizing an actual volume knob :).... I also love the motorize volume control and the metal remote! Benchmark highly recommends not using a separate preamplifier unless a specific value added feature would be added. In fact the cover of the owner's manual calls the unit a "Reference Stereo Preamplifier".

Overall I am impressed so far with the unit. Features and sound quality is very good and very functional. I fully expect the unit to get even better with time to break in!
 
Hmmm... the DACs I have used since jumping back into this crazy hobby about a year ago now:

McIntosh, Teac, Denon, Ayres Pono (still use it as my portable), W4S, Marantz (my current SACD/CD spinner can also be used as a stand alone DAC), NuPrime, and now the Benchmark
 
I just received my Benchmark DAC2 HGC to replace the NuPrime DAC-10H. I am very impressed with NuPrime as a company and their CEO Jason in particular and will never say anything but good things about the company, however I have been having an issue with the DAC-10H in my system. It has become apparent that the issue can probably not be resolved currently. I am not 100% convinced that the issue is not a defect in the unit itself, but I decided to go a different direction.

I did considerable research including talking directly with engineers and representatives from other companies. Benchmark came away impressing me the most, both reviews and speaking with one of their engineers. I like the way that they emphasis neutral non-colored above all else. Also that they are designed as professional grade gear and according to their engineer are used in many recording studios.

The Benchmark DAC is rated as comparing to some of the best available. It plays all my PCM files and DSD files perfectly with no clipping what so ever (that I have noticed anyway). The unit very much has an industrial look and feel to it. Even many of the over all settings, such as the XLR output gain, are set with jumpers on the main board. Very much in the vain of industrial, or professional gear if you will. Even the lights which display the resolution of the file being played are done in what I would consider industrial method. The bit rate lights either a 16 bit or 24 bit LED, the resolution lights either 44 or 48, the word length is either off, 2x or 4x. Therefore the 24 bit, 48 res, and 4x word length would be lite to indicate a 192 kHz file. Very much industrial orientation. It also displays the signal coming from the Remedy (for Redbooks) correctly as 96 kHz, which the NuPrime never did.

I am sure there is a break in period needed, but so far the unit is very smooth and natural sounding with no digital glare that I can notice. There is no indication of clipping what so ever and the most neutral and natural sounding of the eight different DACs that I have tried along this journey. I fully anticipate that the sound will open up even more with time breaking in the unit.

The Benchmark also has two analog inputs, one to run my SACD through and another if I decided to later add a turntable (phone preamp would be needed). They use a specially designed Hybrid Gain Control (HGC), utilizing an actual volume knob :).... I also love the motorize volume control and the metal remote! Benchmark highly recommends not using a separate preamplifier unless a specific value added feature would be added. In fact the cover of the owner's manual calls the unit a "Reference Stereo Preamplifier".

Overall I am impressed so far with the unit. Features and sound quality is very good and very functional. I fully expect the unit to get even better with time to break in!

Hi Randy. Congrats! I've had these for years and still use one today in my bedroom for my tv. If you really want to take its performance to the next level consider 1) premium fuses (I use HiFi Tuning Supreme) and 2) a power cord along the lines of an Audience AU24SE MP or Shunyata Alpha Digital (maybe even Venom Digital if budget remains a concern)


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Thank you sir... I actually am using a very high end power cord on the Benchmark. I have my Richard Gray High Tension power cord hooked to the DAC2. So far I have only the factory fuse in the unit.

Thank you for your kind words and suggestions!
 
Hi Randy,

I am so happy for you. Looks like the Benchmark is a winner. It treats those overloaded files properly and works like it supposed to work. Looking forward to your thoughts as it breaks in. Enjoy!
 
Thanks Joe, and so far so good. I read last evening about several recording studios which use their A to D and D to A converters. Abbey Road for example actually.
 
Randy, I too have read up on Benchmark in the search of the holy grail in dacs, they demand some consideration as the reference to studio's is relevant. It's always great to find a sleeper that you have just put into your system & it just keeps on surprising you. Congrats on the new dac.
 
Thank you sir... I actually am using a very high end power cord on the Benchmark. I have my Richard Gray High Tension power cord hooked to the DAC2. So far I have only the factory fuse in the unit.

Thank you for your kind words and suggestions!

I've heard great things about the Richard Gray power cords. Great. Upgrade those fuses and you're in for a treat... [emoji106]


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Yea, this power cord I got from a buddy in our audio club. He was upgrading again... he pulled if off one of his MBL pieces... dam what a system he has by the way....
 
Don't forget to set those gain jumpers at the -20dB level in order to keep the volume knob as high as possible.
 
Yea, I did that one almost immediately :).... 4 jumpers.... (still can't get it as high as I would want through the amplifier, but through headphones it is just fine).
 
Randy

If you've still got the Rothwell's try them and see if that helps. I am having to use them with this particular DAC as it puts out 3 volts instead of 2.
Also how does switching to the Benchmark affect your new headphones?
 
Hey Jack, I do still have the Rothwells. Unfortunately they are RCA and the output to the amplifier is XLR. The gain is not too bad, I think it is more that the Ampzilla has a lot of power and the speakers are 4 ohm. The gain is pretty close to where Benchmark suggests to try and get to. They suggest to adjust the jumpers to try and get the XLR output to be at a comfortable level at the 11 o'clock position.

I was a little concerned that the Benchmark does not use balanced headphone outputs, however they have an article on their website describing why they feel that balanced outputs do not improve a headphone amplifier. Benchmark also states they will never use balanced headphone outputs. The Sennheisers do sound very good with the built in amp, so I think we are good in that regards. I just have an extra balanced cable not being used :).
 
The Ampzilla amp has an input sensitivity of 1.76V and the DAC2 max output with the pads set at -20dB is 3dBu or 1V; the Ampzilla will output 70W for a 1V input signal.
 
I take your word for that :)... don't really understand that end of things. I just know my normal listening the volume control is between 9 o'clock and 11 o'clock, depending on the recording.

Also the speakers being 4 ohm and an amplifier like the SST will be very loud at 70 watts :D...

Through the headphones I usually listen with the gain between 11 o'clock and 12 o'clock...

Of course when no one else is home all bets are off :).
 
Thanks Joe, and so far so good. I read last evening about several recording studios which use their A to D and D to A converters. Abbey Road for example actually.


Randy,

I just realized that the DAC2 is a Stereophile Class A rated product.

Benchmark Media Systems DAC2 HGC: $1995 $$$
Although similar in appearance to previous Benchmark models, with a front-panel volume control and two 1/4" headphone jacks, the new DAC2 HGC uses four 32-bit ESS Sabre DACs, run in balanced configuration, for a significantly lower noise floor; has a new Hybrid Gain Control (HGC) for volume attenuation, which combines active analog gain control and passive low-impedance attenuators in the analog realm with a 32-bit digital DSP gain control for digital signals; and provides front-panel displays for both sample rate and word length. Though it lacks a balanced AES/EBU input, the DAC2 HGC offers two analog inputs and five digital inputs: two optical, two RCA coaxial, and one asynchronous USB that handles resolutions up to 192kHz as well as DSD64. It had a pleasantly forward sound, with smooth highs, a solid bottom end, and excellent image separation, said EL. Compared to the Auralic Vega, the Benchmark had a similarly smooth top end, but lacked the Vega's sweet midrange and outstanding portrayal of space, said JA. JI noted the DAC2's good scale and sense of ambient space, but found it lacked focus compared to the considerably more expensive MSB Analog DAC. (Vol.37 No.2, Vol.38 No.11, Vol.39 No.10 WWW)
Read more at http://www.stereophile.com/content/...dition-digital-processors#OapOyJsLMqEQffYG.99
 
Joe, thanks for pointing this out. I think this was one of the reviews I read when researching. So far it seems like a pretty solid little machine.

EDIT: Ok, so this is not one of the reviews I saw doing my research... but another review that I like :)...

Ahhh, Joe, it made their Class A+ rated products :D.... NICE....
 
I just re-read the article. I found it very interesting and loved reading about the various other brands that were included as part of their Class A+. The average price of all of these pieces is $5921 and only one was in the same price range as the Benchmark, this being the NAD which lacked many of the features such as analog inputs.

The MSB that was being compared sells for $6995 for example. Many other fine pieces of gear were discussed in this article, but it definitely shows the outstanding value of the Benchmark. Also, adding a free five year warranty extension when you register the unit makes for one heck of a nice added bonus!
 
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