Denafrips Ares II, Pontus II, Venus II, and Terminator Plus
Review samples supplied by Vinshine Audio
Retail prices including 21% VAT:
Ares II: 915 euro
Pontus II: 1951 euro
Venus II: 3308 euro
Terminator Plus: 7.055 euro
For this review, I will be comparing the Ares II, Pontus II, Venus II, and Terminator Plus directly to one another. The only DAC missing in this list is the older original Terminator. All four DACs use Denefrips’ proprietary discrete R2R conversion technique and all use a high-quality linear power supply, even the most affordable Ares II. With similar design goals and even similar specs, this might lead one to wonder just how exactly these DACs differ from one another. And perhaps more to the point, whether the performance of each successive model up the ladder actually justifies spending the extra money. Well, this is precisely what I intend to find out!
From top to bottom: Ares II, Pontus II, Venus II, and Terminator Plus
Basic Specifications
Below, I have published the most important specs. As you will see, on the surface, there seem to be only small differences between the models. So, as it often is in matters audio, the proof of the pudding will be in the eating.
Ares II
Inputs: 2x Coax, 2x TOSlink, USB
Outputs: Balanced/Unbalanced
Proprietary R2R + DSD Architecture
True balanced 24BIT R2R + 6BIT DSD (32 steps FIR Filters)
Low Thermal Effect, High Precision Hand-Matched 0.01% Resistors
FEMTO Crystal 45.1548MHz, 49.152Mhz
Low Noise Power Supply
FIFO Buffer
Digital Signal Processing via FPGA
Licensed Thesycon USB Driver For Windows Platform
Pontus II
Inputs: Coax, BNC, 2x AES/EBU, TOSlink, I2S on HDMI, USB
Outputs: Balanced/Unbalanced
Proprietary R2R + DSD Architecture
True balanced 24BIT R2R + 6BIT DSD (32 steps FIR Filters)
Low Thermal Effect, High Precision Hand-Matched 0.01% Resistors
FEMTO Crystal 45.1548MHz, 49.152Mhz
Encapsulated Ultra Low Noise Power Supply
Adaptive FIFO Buffer Reclocking
New Improved DSP Digital Signal Processing FPGA Code
DSD1024, PCM1536 Supports On USB & I²S Input
Proprietary USB Audio Solution via STM32F446 Advanced AMR Based MCU
Licensed Thesycon USB Driver For Windows Platform
Venus II
Inputs: Coax, BNC, 2x AES/EBU, TOSlink, I2S on HDMI, USB
Outputs: Balanced/Unbalanced
Proprietary R2R + DSD Architecture
True balanced 26BIT R2R + 6BIT DSD (32 steps FIR Filters)
Low Thermal Effect, High Precision Hand-Matched 0.005% Resistors
Encapsulated Premium Ultra Low Noise Power Supply
TCXO – Temperature-Compensated Crystal Oscillator
Adaptive FIFO Buffer Reclocking
New Improved Digital Signal Processing FPGA Code
DSD1024, PCM1536 Supports On USB & I²S Input
Proprietary USB Audio Solution via STM32F446 Advanced AMR Based MCU
Licensed Thesycon USB Driver For Windows Platform
Terminator Plus
Inputs: Coax, 2x AES/EBU, TOSlink, I2S on HDMI, 2x I2S on RJ45, USB
Clock in/out: 49.152Mhz/45.1584Mhz
Outputs: Balanced/Unbalanced
Proprietary R2R + DSD Architecture
True balanced 26BIT R2R + 6BIT DSD (32 steps FIR Filters)
Matched Precision Thin Film 0.005% R-2R Network Arrays
Encapsulated Flagship Ultra Low Noise Power Supply
High-end Oven Controlled Crystals OCXO
Total isolation of Digital and R-2R Boards
Adaptive FIFO Buffer Reclocking
New Improved Digital Signal Processing FPGA Code
DSD1024, PCM1536 Supports On USB & I²S Input
Proprietary USB Audio Solution via STM32F446 Advanced AMR Based MCU
Licensed Thesycon USB Driver For Windows Platform
Clock Mode
When looking in the Terminator Plus manual regarding Clock Mode, I found two options that seemed similar: COAX (No clock output) and I2S-A (Clock out disable). Upon checking with Vinshine Audio, Alvin Chee kindly confirmed that there is no difference between the two options and that the extra entry is simply a placeholder in the FPGA program yet to be utilized.
Review Context
This review will be split into two parts. First, I will start with my most neutral digital source which is the Grimm MU1 server (set to no internal hardware oversampling), connected via a Jorma RCA digital cable. While I am aware that many users will use USB, I have found that the results with this connection vary greatly in response to the implementation of the interface on either end. For that reason, in spite of the theoretical disadvantage of being inherently synchronous, will I start with the tried-and-trusted S/PDIF format.
In all my tests so far, the Jorma AES/EBU cable yields the best sound quality but because the Ares II does not offer an AES/EBU input, I will use the second-best S/PDIF RCA version of the Jorma cable so that we have equal circumstances for all DACs.
Second, I will employ the Antipodes K50 server and its USB output, to assess the differences with S/PDIF and to see how the DACs respond.
As a reference, I will use the Aqua Formula xHD DAC. All DACs, including the Aqua, are connected using the very neutral and refined Driade Flow Link Reference 808 RCA interlink. For the four Denafrips DACs, I started with a stock power cable and carried out my first comparisons. After that, I substituted the stock cables for Belden 19364 cables with Oyaide C-004 IEC and Bals schuko connectors, which are the same cables that power all my other equipment.
The rest of the system consists of the CH Precision L1 preamp, connected to the A1.5 power amp using an AudioQuest Fire RCA interlink. The speakers are Magico S1 MkII, connected with Jorma Trinity speaker cable.
NOS and Phase
As I have already found as part of earlier Denafrips reviews that I prefer the NOS setting (no oversampling and no filter), I will be using all four DACs in this mode.
Note that the manuals for three of these DACs mention that a lit Phase LED means Positive Phase while the Ares II manual deviates by mentioning that Phase LED Off means Positive Phase. Going by ear, it sounds like in actuality this is reversed and thus in line with the operation of the other three DACs. Perhaps it will be good if Denafrips checks this and amends the online manual accordingly.
Christiaan,
I very much appreciate your review methods and style as well as the content. I am not currently in market for another DAC, but this review, for me, paints the best picture of system interplay for Denafrips I have read. Well done!
Thanks Will!
Hi Christiaan, great review of the Denafrips lot. I end up buying the Pontus II and I am truly happy with it. It delivers a more “real” sound than my previous Chord Qutest. Amazing job :once again 🙂
Thanks for the feedback Vasco!
Older Terminator II? That must be a mistake as this one has just been released. Also, I2S is the best input for TII and Terminator Plus
I meant “original Terminator”. Now corrected. Yes, I2S is technically best, please see my separate Terminator Plus review for a report on this interface.
Thank you Christiaan for clarifying. Any chance to review the Terminator II anytime soon? That would be nice to compare it against the Venus II and the Terminator Plus
I think chances are slim, but in any event, there are no plans for this.
Epic review, bravo! I have Pontus II and i like it a lot. Based on your review i think that i would prefer it over the more expensive models even if they are technically better. I tried Ares II in the past and wasn’t that impressed to be honest but Pontus II is not going anywhere. I combine it with Iris DDC.
I just purchased the AresII about a month ago. I use it with a Schiit Jot2 amp, and my Audeze LCD-2C headphones, and I absolutely love it! Tho I know it’s good, this was a great article to explain how the other DACS compare. Invaluable! Great job!
Can you compare the Terminator Plus to the latest Aqua La Scala? I’m interested in bypassing the internal DAC in my Trinnov. I’m running a pair of subs which will still use the analogue outs on the Trinnov and am crossing my Quads over at 50 Hz so the external DAC would be working from 50 Hz up.
Hi Ken, While I don’t have the Scala available for a direct comparison, I remember how it compares to the Formula xHD. Do note that while there are large differences between external DACs, comparing one to a built-in DAC can be tricky. Also, I wonder if you’d be lowering the coherence if the subs receive their signal from a different DAC than the main speakers.
That said, the La Scala with its tube output stage sounds fuller, richer, sweeter, and slightly more sonorous than the Formula. However, the latter sounds significantly more linear, refined, detailed, and transparent. The Termninator Plus goes even further in that same direction. In a nutshell, for the highest precision, the Terminator Plus is your best bet, but it won’t offer any of the rich tube-goodness that the La Scala does.
Thank you for this. I owned the Ares and did not gel with its tonal character in my system (indeed to lean and a bit sharp at times). Several dealers confirmed that the Pontus has the same character, why I had decided to move in from Denafrips. Maybe I should yet give the Pontus a try 🤔
If accuracy and transparency (and not smoothness or forgiving warmth) are what you are after, then I would definitely give the Pontus a try. It shares the general Denafrips house sound but is fuller-sounding nonetheless.
Thanks Christian! I think I would like to try something in the more smooth/forgiving camp tbh 😊 Am considering the Spring DAC, but not sure it’s the way to go either. Would like something that is a big step up from the Ares II/Rega DAC that I have been using. Full lower mids welcome 🤗
Thanks Christiaan. I’ll have to run the Trinnov room correction again with the external DAC. Latency could also be a problem but the Trinnov is so capable I’m confident it can make it work.
The Trinnov sure is a fantastic piece of gear but it’s hard to forecast how the combination with another DAC will work. That said, I’m pretty confident that the Terminator Plus will outperform the built-in DAC in quite a few important areas. Ultimately, I’m afraid it remains a matter of just trying it out.
Hi Christiaan,
really compliments for your style, the precision in the descriptions (above all, as far as I’m concerned, in the highlighting of the different sonic nuances), really appreciated by us fans and for this reason even more fun to read.
Reading your personal comments about the Terminator brought me back to a very similarly priced product that you tested: the APL DSD.AR.
The curiosity to read your comment about the pros and cons of the Terminator compared to the DSD-AR (at least indirectly but with the same references) is killing me!
Please let me know what’s your opinion about these two dacs and whether you consider them overall more or less competitive !
Kind regards
Stefano
Hi Stefano, thanks for the compliment! Regarding the APL DSD, as I don’t have it at hand for a direct comparison, I can’t make any hard claims but one thing that I’m sure of is that the APL is sweeter, fuller, and more relaxed, less tight, but with more flow. I recall it as being quite precise, detailed, articulate, and transparent but I think if I were to now put it up against the Terminator Plus, then the latter will outperform it in these areas, and probably by quite a margin. Are they competitive? Well, I’d say yes if we consider the overall sound quality. But I would say no if one is looking for a particular sound since these two DACs really sound quite different.
Hey Christian I’m a bit late seeing this review but as usual fantastic job! A really thorough comprehensive comparison of a very popular line of Dacs. This should prove invaluable information for lots of folks looking for a new Dac. I am not in the market and still enjoyed the heck out of reading the review.
Cheers,
Jon
Thanks Jon!
I really was reading these notes seriously until the audiofoolery vomitted out. I can point out specifics, but it is too far gone to bother with.