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Kronos AV
Kronos AV

432 EVO Essence DAC & Music Server
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  • Regular price £3,749.00
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The 432 EVO Essence is our all-in-one server with integrated high-end 24/192 DAC using an oven controlled clock for low jitter, and also has a high-end SP/DIF coaxial and optical output. Furthermore it’s upgradeable as you can use most external DAC’s, as it also supports SP/DIF, USB and HDMI DAC’s out of the box.

The 432 ESSENCE features a high-end soundcard from Asus, which also exists in a DAC version. The DAC version of this soundcard won EISA awards, and after reading their review "an honest and compelling sound that puts many traditional hi-fi marques to shame!", we wanted this technology in our integrated model.

The DAC inside our Essence easily surpasses many other similarly priced standalone DAC’s, sounding closer to high end analogue with no hint of digital harshness thanks to the 432 Hz plugin.

The Essence runs full Roon or Logitech Media Server and our 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.


Feature rich digital & analog ouputs

The 432 EVO Essence features a high-end 24/192 DAC card from Asus. The DAC chips used are the Texas Instruments PCM1792A which deliver an industry leading signal to noise ratio of 124dB.

Texas Instruments uses it’s own DAC architecture which has a built-in digital clock, and in the Essence is combined with a TCXO (temperature compensated crystal oscillator) for the lowest jitter, a feature usually found in much more expensive DAC’s.

The DAC board also uses high fidelity low dropout (LDO) regulators, and several capacitors are from WIMA. The output section uses MUSES 8920 and 8820 opamps, which are J-FET amplifiers from New Japan Radio Co.

The Essence has high-quality RCA analog outputs, a combined optical & high-end coaxial S/PDIF output port, and also supports external DACs with USB or HDMI inputs.

The USB ports when hooked up to one or more USB DAC’s can be combined with the internal DAC, to create more than one output zones. The analog output RCA and S/PDIF (coaxial and optical via an adapter) can work simultaneously on the 432 EVO ESSENCE as one output zone!

Texas Instruments PCM1792A DAC chips with a very high SNR of 124dB.
• Oven controlled clock for low jitter.
• MUSES 8920 & 8820 opamps.
• High-fidelity low-dropout (LDO) regulators.
• Analog cinch output, coaxial cinch & optical S/PDIF.
• USB & HDMI dacs are also supported by the Essence.
• Uncompromised CD ripping using a bitperfect Teac rip facility.
• 2TB SSHD storage on spring suspension system: ultra low noise laptop HDD with SSD caching, with SATA noise filtering and SATA protocol tweaking for lower EMI.
• Ultra high-end upsampling with 10 selectable and tweakable upsample filters.
• Bit perfect mode, upsample only mode or upsample with 432 Hz post-processing.
• Custom remote supported Linux with realtime kernel.
Analogue output Oven controlled 24/192 DAC card with 124dB SNR. Stereo RCA outputs
Digital output High-end SP/DIF output, both coaxial and toslink
Analog and SP/DIF output work simultaneously

USB audio output supporting USB Audio Class 2.0 to connect to your USB DAC

HDMI audio output for AV processors & receivers (e.g. second zone)
Network Output Network streaming with realtime scheduling to any Roon endpoint and Logitech / Squeezebox based players
Ethernet 1x RJ45 for realtime clocked gigabit supporting true gigabit ethernet ISPs
USB 2x USB 3.0 ports for backup or connecting additional USB dacs
2x USB 2.0 ports for connecting additional USB dacs
HDMI HDMI port supporting HDMI dacs and surround processors / receivers
KVM VGA, DVI, HDMI and keyboard/mouse service ports normally never needed as the EVO is VPN supported
Logitech Media Server All common formats including DSD, WAV, flac, MP3, ogg vorbis, aac, Passthrough of MQA
Roon MP3, WAV, WAV64, AIFF, FLAC, Apple Lossless, OGG, and AAC at resolutions up to 32 bit 768kHz. Roon also supports DSD64, DSD128, DSD256, and DSD512 in the DSF and DFF formats.
Logitech Media Server Ogg Vorbis as supported by Spotify Passthrough of MQA towards MQA DAC when using bitperfect mode
Roon MQA first unfold supported & any MQA feature in Roon As MQA does not recover any new audio data in the second unfold, second unfold can be replaced by 432 EVO’s own upsample which also can support minimum phase rendering with one cycle of post-ringing, or the superior sounding Archimago minimum phase filter.

Bitperfect mode No audio transformations occur, unless DAC does not support sample rate or bit depth of format, otherwise true bitperfect matching or even beating the most exclusive CD transports
Upsampling-only Output most DSD & PCM formats in any input samplerate as 24 bit or 32 bit output in one of the following output samplerate:
44.1K, 88.2K, 176.4K, 352.8K and DXD, 706.6K
48K, 96K, 192K, 384K, 768K
432 Hz mode Same as upsampling mode, but with 432 Hz processing without resolution loss. 432 Hz and upsampling are a combined one step algorithm, therefore no additional load is caused on the CPU when using 432 Hz mode compared to upsampling
Input pitch 440 Hz up to 445 Hz in one step increments
Other pitches can be added by special request
Output pitch 415 Hz
426 Hz
430.5 Hz (Equal Tone Temperament)
432 Hz (Verdi’s A, Pythagorean Temperament)
440 Hz (today’s Concert Pitch) → used for upsample-only mode
444 Hz
Supported input formats Any audio and file format from local files on the internal storage on the EVO or a NAS, internet radio, on demand streaming services such.
444 Hz mode not compatible with live internet radio
For Upsampling-Only And 432 Hz Modes
Linear phase User tunable linear phase filter, including tuning of processing buffer size and several precision options. All frequencies have the same delay through the filter.
Minimum phase User tunable minimum phase filter, including tuning of processing buffer size and several precision options. No pre-ringing.
Post-ringing can be regular long tail “minimum-phase” without aliasing, or reduced MQA / Ayre inspired one cycle of post-ringing with free bonus aliasing, create pseudo ultrasonics.
Intermediate phase The only server on the market supporting Archimago’s Intermedia Phase upsampling, the most ideal filter with mainly post-ringing and no phase issues within the audible range.
432 EVO implements his original recipe, and two improved variants of this filter
Sample rates All common multiples of 44.1 and 48K
All common DSD formats
Bit depths 16, 24 and 32 bit

Roon Official Roon remote running on Apple or Android tablets & phones
Desktop version of Roon for PC or MAC acting as a Roon remote control
Logitech Media Server Any web browser for web based version of GUI
SqueezePad (iPad)
iPeng (iPhone/iPad)
Orange Squeeze (Android)
Squeezer (Android)
Squeeze Remote (Windows)
Web Gui Web interface usable on any phone, tablet, laptop or desktop:
1. Configure the 432 Hz enabled player
2. Check the riplogs
3. Switch between Roon & Logitech Media Server
4. Several other system configuration parameters not often changed
Ripdrive Hand tested Teac slot-loading, tested with at least 5 retail CD’s which are known to cause rip issues on some drives. All CD’s must past our extreme test.
Default storage Ultra low noise laptop 2 TB SSHD (hybrid HDD+SSD) on spring suspension system.
Storage upgrades Optional 2 TB SSD or 4 TB SSD or 2x 4 TB SSD merged as a virtual 8 TB instead of 2 TB SSHD is possible. Please ask your reseller for pricing.
CPU Model with HWBOOST: J4205 tuned to a more constant power draw for lower software jitter. 
More modern and faster than many competitors who use the old N4200

Model. Without HWBOOST: non-disclosed quad core CPU slightly slower than the J4205, but still fast enough for Roon
Memory Model with HWBOOST: 8 GB, plenty for Roon even when importing larger collections.
 Otherwise 4 GB, large enough for music collections up to 2 TB
Roon Internet radio, Qobuz and Tidal
Logitech Media Server Internet radio, Qobuz, Tidal, Spotify and any service for which an LMS plugin is available
Mains supply 100 Volt AC 50/60Hz / 110 Volt AC 50/60Hz
115 Volt AC 50/60Hz / 120 Volt AC 50/60Hz
220 Volt AC 50/60Hz / 230 Volt AC 50/60Hz
240 Volt AC 50/60Hz
True linear power supply: Sbooster BOtW MK2
Internet Internet connection required for updates, VPN support & metadata retrieval.
Can work standalone (e.g. hifi shows, shows on location) with just a Wi-Fi router attached via ethernet and no active internet connection
DAC USB To use the superclock based USB output, you’ll need a USB dac conforming to USB Class Audio 2.0 standard (most DAC’s follow this standard)
Network endpoint To stream to endpoints, you’ll need Roon or Squeezebox compatible endpoints

Colour Black or silver
Weight Server 6 KG
PSU 1.85 KG
Dimensions PSU: 240 x 130 x 75mm
Server 435 x 319 x 100mm (W x D x H, 109mm including feet)
What’s in the box Server
Sbooster BOtW mk2 PSU with attached high quality DC cable 
Manuals & Quick Guide
Chassis Modular chassis which will support future hardware updates such as new main boards as they come to market
2 years limited warranty
2 years VPN support included with the 432 EVO

We are still delivering orders as normal. When your order ships you will still receive tracking details. For UK shipments, Our couriers have procedures in place to ensure deliveries are arriving as quickly & safely as possible. Drivers can now sign for your parcels, however will notify you that they have arrived, in order to ensure you receive your parcel. Signing for the parcel has now been stopped temporally for hygiene reasons. Drivers are also working with customer instructions, so you can ask them to leave the parcel in a safe place (doorstep etc...) if you prefer not to come into direct contact with the driver.

There has been no changes to deliveries with Brexit. All deliveries to the UK mainland, Northern Ireland and the Republic of Ireland are operating as normal. No VAT or charges are applicable. 

We have several deomonstation areas in both of our branches. Please give us a call on 03435236169 or email to enquire about hearing products at your local branch. 

Please always contact us before to make sure the product(s) are available

Express Deliveries

Express Delivery is FREE on all orders over £50. Express Delivery offers delivery in 24-72 hours from time of purchase. We use premium couriers for this service, mainly DPD & Royal Mail. DPD will offer you a one hour window for delivery to make sure someone is at home, or you can reschedule the delivery if no one is around. 

Standard Deliveries

Here at Kronos AV, we have vast experience with e-commerce sales. Making sure that your parcel arrives undamaged is a huge priority for us. That’s why at Kronos AV, we only use premium couriers for all our orders. All our parcels are shipped with DPD or Royal Mail and are always sent Signed For to make sure it gets to the right person. 

If for any reason your parcel does arrived damaged, please get in touch, and we will be happy to get everything resolved for you. We are always on hand to help!


Delivery is FREE on all orders over £50. In order to offer FREE delivery to UK customers, we use several premium couriers to ensure your delivery arrives safe.

Most large orders (over 2kg) ship using DPD or DHL courier and smaller orders (under 2kg) by Royal Mail signed for services.

The most appropriate courier will be chosen for the items ordered to ensure the quickest possible delivery.

We can offer very generous trade in offers across the majority of our product range. 

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If you have any question, please feel free to call us on 03435236169 or email