romaz
1000+ Head-Fier
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l had a chance to listen to the Innuos Zenith SE while at RMAF in Denver today. There was no way to assess its true impact at an audio show but I did speak with Innous' U.S. distributor, Well Pleased Audio Vida, who promised to try and get me an SE unit for personal review. After speaking with the distributor, it appears the only difference between the standard Zenith Mk 2 and the SE version is a better power supply. Obviously, this better power supply must be a big deal.
The distributor didn't have enough technical knowledge to really discuss how Innous (a Portuguese company) distinguishes its servers from the servers of other companies but based on Innuos' website, apart from the best multi-rail linear power supply they know how to build, this machine also focuses on transformer-based isolation at its Ethernet ports, vibration control (without saying how), and "in memory playback" which are not really unique features in of themselves and so this doesn't really tell me much. Based on the favorable reviews of many, this appears to be an excellent server and hopefully, I'll get the chance to assess it firsthand shortly.
I have first-hand experience with the Antipodes DX Gen2 and this is an excellent server, one of the best out there. I am intrigued by the "V4X" circuit used in the Gen3 and how this might differ from the V3.5X circuit used in the Gen2. As these are proprietary terms that have no meaning to anyone other than Antipodes, those knowledgeable about servers who are interested in the tech used in this server are pretty much left clueless as to how this machine distinguishes itself from other servers.
Having opened up a DX Gen2, the machine I looked at used a typical off-the-shelf Jetway mini-ITX motherboard with an embedded Celeron CPU. Antipodes made the odd choice of using a SOtM tX-USBhubIN USB output card which is an excellent USB card, however, this card is only SOtM's 2nd best card as their tX-USBexp card is their very best and SOtM has confirmed this with me.
As to Antipodes' claim that their new Gen3 machine "avoids noise filters used in other products," this may be a misleading statement. If Antipodes continues to use an SOtM USB output card, I can assure you all of SOtM's USB output cards are noise filtering devices as this is specifically how SOtM describes their cards. Yes, of course, it is better to design a clean machine so that filtering becomes unnecessary but this is not a practical statement to make, imho. Even if Antipodes went to the extraordinary lengths of designing their own motherboard that is completely devoid of noisy switching regulators and then powered such a motherboard with an extraordinary PSU with unmeasurable ripple noise, such a motherboard would still generate a fair amount of noise that should be filtered as the CPU, RAM, ICs, clocks, etc., are noise generating components. To let this noise reach a DAC, even a DAC with galvanic isolation such as a Chord DAVE, is only asking for trouble. What I am saying is that filtering is absolutely necessary.
What is interesting is that these manufacturers provide no real specifics of what they do nor do they supply measurements that support their claims of superiority and so it becomes a guessing game as to how good these servers really are relative to their competition. Having attempted to identify the specific noise impact of various components in a server, beyond using CPUs with simple architecture like Celerons, using minimal amounts of RAM (which themselves contribute noise), as well as low latency operating systems and software players, I have also found avoiding SSDs, which are significant noise polluting devices to be important if avoidance of fatiguing glare is the goal. The fact that both servers are utilizing large capacity SSDs as internal storage is a red flag, as far as I'm concerned, as all the large capacity SATA III SSDs I have looked at from popular vendors such as Samsung or Kingston are quite noisy electrically (much noisier than the smaller capacity SATA II SSDs and dramatically noisier than an SD card or compact flash card). Beyond that, I have found the stock clocks used in off-the-shelf motherboards to also be quite noisy as replacement of such clocks with other clocks with dramatically lower phase noise measurements have resulted in not just a profound reduction in glare but as a consequence of this removal of glare, a richer tonal palette, better fine detail discernment and also better dynamic contrasts. Behind the best low noise, low impedance PSU that one can find, I have not found anything that has resulted in a more dramatic impact than replacement of the noisy clocks within your digital chain and this is a big reason why such devices like SOtM's tX-USBexp, sMS-200ultra or tX-USBultra can make such a notable difference. The problem is that these devices are indeed filtering devices and while very effective, what is more effective is to replace all the bad clocks that precede such devices (ie the motherboard's system clock, your LAN port's clock, router's clocks, etc) which make these "rescue" devices much less necessary.
Having replaced all the clocks that I am able to from my router to my server (a total of 8 clocks), the improvement I have found has been quite profound even with the Blu Mk2 and DAVE following my server and thus far, this fairly straightforward build when powered by my Paul Hynes SR7 is the best I have heard by a very considerable margin. While I am open-minded to just how good the Zenith SE and the latest generation Antipodes DX might be with the "secret sauce" they employ that their manufacturers refuse to disclose, unless these devices have removed noisy clocks, I have a feeling these excellent servers can be made even better.
The distributor didn't have enough technical knowledge to really discuss how Innous (a Portuguese company) distinguishes its servers from the servers of other companies but based on Innuos' website, apart from the best multi-rail linear power supply they know how to build, this machine also focuses on transformer-based isolation at its Ethernet ports, vibration control (without saying how), and "in memory playback" which are not really unique features in of themselves and so this doesn't really tell me much. Based on the favorable reviews of many, this appears to be an excellent server and hopefully, I'll get the chance to assess it firsthand shortly.
I have first-hand experience with the Antipodes DX Gen2 and this is an excellent server, one of the best out there. I am intrigued by the "V4X" circuit used in the Gen3 and how this might differ from the V3.5X circuit used in the Gen2. As these are proprietary terms that have no meaning to anyone other than Antipodes, those knowledgeable about servers who are interested in the tech used in this server are pretty much left clueless as to how this machine distinguishes itself from other servers.
Having opened up a DX Gen2, the machine I looked at used a typical off-the-shelf Jetway mini-ITX motherboard with an embedded Celeron CPU. Antipodes made the odd choice of using a SOtM tX-USBhubIN USB output card which is an excellent USB card, however, this card is only SOtM's 2nd best card as their tX-USBexp card is their very best and SOtM has confirmed this with me.
As to Antipodes' claim that their new Gen3 machine "avoids noise filters used in other products," this may be a misleading statement. If Antipodes continues to use an SOtM USB output card, I can assure you all of SOtM's USB output cards are noise filtering devices as this is specifically how SOtM describes their cards. Yes, of course, it is better to design a clean machine so that filtering becomes unnecessary but this is not a practical statement to make, imho. Even if Antipodes went to the extraordinary lengths of designing their own motherboard that is completely devoid of noisy switching regulators and then powered such a motherboard with an extraordinary PSU with unmeasurable ripple noise, such a motherboard would still generate a fair amount of noise that should be filtered as the CPU, RAM, ICs, clocks, etc., are noise generating components. To let this noise reach a DAC, even a DAC with galvanic isolation such as a Chord DAVE, is only asking for trouble. What I am saying is that filtering is absolutely necessary.
What is interesting is that these manufacturers provide no real specifics of what they do nor do they supply measurements that support their claims of superiority and so it becomes a guessing game as to how good these servers really are relative to their competition. Having attempted to identify the specific noise impact of various components in a server, beyond using CPUs with simple architecture like Celerons, using minimal amounts of RAM (which themselves contribute noise), as well as low latency operating systems and software players, I have also found avoiding SSDs, which are significant noise polluting devices to be important if avoidance of fatiguing glare is the goal. The fact that both servers are utilizing large capacity SSDs as internal storage is a red flag, as far as I'm concerned, as all the large capacity SATA III SSDs I have looked at from popular vendors such as Samsung or Kingston are quite noisy electrically (much noisier than the smaller capacity SATA II SSDs and dramatically noisier than an SD card or compact flash card). Beyond that, I have found the stock clocks used in off-the-shelf motherboards to also be quite noisy as replacement of such clocks with other clocks with dramatically lower phase noise measurements have resulted in not just a profound reduction in glare but as a consequence of this removal of glare, a richer tonal palette, better fine detail discernment and also better dynamic contrasts. Behind the best low noise, low impedance PSU that one can find, I have not found anything that has resulted in a more dramatic impact than replacement of the noisy clocks within your digital chain and this is a big reason why such devices like SOtM's tX-USBexp, sMS-200ultra or tX-USBultra can make such a notable difference. The problem is that these devices are indeed filtering devices and while very effective, what is more effective is to replace all the bad clocks that precede such devices (ie the motherboard's system clock, your LAN port's clock, router's clocks, etc) which make these "rescue" devices much less necessary.
Having replaced all the clocks that I am able to from my router to my server (a total of 8 clocks), the improvement I have found has been quite profound even with the Blu Mk2 and DAVE following my server and thus far, this fairly straightforward build when powered by my Paul Hynes SR7 is the best I have heard by a very considerable margin. While I am open-minded to just how good the Zenith SE and the latest generation Antipodes DX might be with the "secret sauce" they employ that their manufacturers refuse to disclose, unless these devices have removed noisy clocks, I have a feeling these excellent servers can be made even better.