The 432 EVO Master is the 432 EVO flagship and a best in class music server with a cost-no-object performance. It can easily surpass any other digital source, including the most exclusive digital CD transports, sounding more like analogue sources with no hint of digital harshness.
Tried and tested in world class systems and designed according to the most extreme audiophile standards for ultra low jitter and low noise, the Master was introduced at Munich High End 2017. It immediately won best of show from both AV Showrooms and Hifi Pig.
432 EVO’s dual enclosure chassis has a true triple linear power supply with no shared transformer and utilises the very best components such as gold plated PCBs, and is a major upgrade over 432 EVO’s AEON model (from which existing customers can upgrade). The MASTER runs full Roon or Logitech Media Server and 432 EVO’s sublime 432 Hz enabled player, which can also play bit perfect to the highest possible quality. It also features a bit perfect Teac CD drive for ripping your CD collection.
432 Hz is one of the ways to tune musical instruments, and is also known as the Tuning Note “A” and A = 432. Music tuned to 432 Hz sounds better than contemporary music which is tuned at A = 440. The famous Stradivarius for example was tuned to 432 Hz according to the Verdi tuning
During historical periods when instrumental music rose in prominence (relative to the voice), there was a continuous tendency for pitch levels to rise, also known as the pitch inflation. A higher pitch such as the current A = 440 standard sounds sharper, louder and more “fresh”, but also more aggressive, which is not a quality audiophiles are looking for.
The 432 EVO offer you the possibility to convert your existing music on the fly into the better sounding 432 Hz, without any resolution loss. Several best of show awards we have won are the ultimate proof, and recent research by Maria Renold and a group of 2000 people showed that 90% preferred 432 Hz.
For purists we still offer bit perfect mode on par with the best CD transports, or upsample only mode for those who want to tune the sound. All these modes are live switchable.
The 432 EVO Master incorporates a modern power efficient quad core CPU with 8 GB of RAM. We implement techniques from the supercomputing world inside the Master to guarantee a stellar audio performance: the audio decoders and 432 Hz processing run on a dedicated core, and will never run out of CPU cycles or have to fight with other processes.The dedicated audio core runs a custom clock scheduler which doesn’t interrupt the critical audio processes 1000 times per second, greatly improving software jitter, as process switching is minimized.
The Master also eliminates typical “chaos” found inside the OS of other servers by using advanced kernel & process tuning configurations not found in any competing product, further lowering software jitter by reducing entropy. This is a remarkable achievement and key to it’s stellar performance.
Using custom BIOS and kernel tuning, the EVO actually shuts down chip functionality on the motherboard, so it acts like a software defined custom motherboard. The big advantage of this approach is that the Master is future proof. If faster and/or better sounding main boards become available, the customer will be able to upgrade unlike may of the competitors. We already offer this to existing customers.
We use a custom realtime Linux OS, refined and tuned by 432 EVO’s owner Frederic Vanden Poel, who is also a senior Linux consultant building on 20+ years of IT experience. The EVO can be on 24/7 and will never run hot, always running cool while sounding analog and very refined.
The importance of a pure and clean power supply for digital audio cannot be stressed enough. Digital audio’s enemy is noise, and much of that comes from poorly designed power supplies or cheap SMPS (switched mode power supplies). In fact a dirty power supply can not only ruin the sonic performance of a server, it can also inject noise down the mains to infect the rest of your system!
We thus take the design of the power supplies extremely seriously. The Master has a true triple independent power supply. Instead of offering masses of dependent DC rails from one transformer, every output rail in the Master has a separate AC filter, medical grade shielded custom transformer and dual stage DC buffering.
The second part of the DC buffer is inside each of the three bundled color coded silver DC cables, leading to a very short current paths towards the dedicated USB output board and superclock board, which is just a few centimeters. The “IT” parts inside the server also have their own dedicated power supply, with DC filtering between storage and main board, acting as a noise firewall for the moving parts inside HDD’s, or the PWM converters in SSD’s. As we use 2.5 inch models, the electrical & mechanical noise is already drastically lower compared to normal consumer drives.
Using a triple design with 3 transformers leads to much faster transients compared to a shared transformer. The power supply is also free of any transformer noise.
For Upsampling-Only And 432 Hz Modes
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