432 EVO Aeon Music Server

432 EVO Aeon Music Server - As Traded

Condition: Used. Very Good 

Includes: Power supplies, Power cables (no box)

SN: VPNID AUS05

Includes 3 month (90 day) warranty 

Overview

The 432 EVO Aeon is our high-performance server just below the flagship Master model, offering many of the same features at a more affordable price. It surpasses many similarly priced digital sources, providing a sound closer to high-end analog without digital harshness, and can be upgraded to the Master model.

Developed from the 432 EVO High-End model, the Aeon includes a dual power supply from S-booster, a high-quality SOtM superclock board for optimized USB output, and core-specific software tuning to minimize jitter. It runs full Roon or Logitech Media Server and a 432 Hz enabled player, which can play bit-perfect audio. The Aeon features a bit-perfect Teac CD drive for ripping CDs, and can convert music to 432 Hz on the fly, offering a more pleasing sound according to research.

The Aeon uses a power-efficient quad-core CPU with 8 GB of RAM, updated in Q4 2020, and employs supercomputing techniques to ensure stellar audio performance by running audio processes on a dedicated core. It minimizes software jitter with advanced kernel and process tuning and features a custom BIOS that allows for future upgrades.

The server runs on a custom real-time Linux OS refined by 432 EVO's owner, Frederic Vanden Poel, ensuring it stays cool and performs reliably 24/7. It includes a 2TB noise-filtered SSD, with optional upgrades to 4TB or 8TB, and a low-noise hybrid storage system.

Additional features include:

•
Bit-Perfect Ripper: A Teac rip drive hand-tested for perfect operation.

•
Modern CPU: Twice as fast as competitors' older chips.

•
USB DAC Output: An ultra-low noise USB output board.

•
Super Clock: Direct clocking with a dedicated superclock board.

•
Dual SBooster Power Supplies: Two independent power supplies for cleaner audio.

It supports streaming services like Tidal, Qobuz, Spotify, and internet radio, and comes pre-installed with Roon Core (separate license required) and Logitech Media Server.

Specification 

AUDIO OUTPUTS

Digital output

Superclock based dedicated USB 3.0 output supporting USB Audio Class 2.0 to connect to your USB DAC

Network streaming with realtime scheduling to any Roon endpoint and Logitech / Squeezebox based players

CONNECTIVITY

Ethernet

1x RJ45 for realtime clocked gigabit supporting true gigabit ethernet ISP’s

USB

1x ultra high-end low jitter superclock based USB DAC output

2x USB 3.0 ports for backup or connecting additional USB dac’s

2x USB 2.0 ports for connecting additional USB dac’s

KVM

VGA, DVI, HDMI and keyboard/mouse service ports – normally never needed as the EVO is VPN supported

OPEN FILE FORMATS

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.

DRM FILE FORMAT

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.

AUDIO TRANSFORMATIONS

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

SUPPORTED TUNING TRANSFORMATIONS USING 432 Hz MODE

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

UPSAMPLING RECIPES
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

AUDIO SAMPLE RATES

Sample rates

All common multiples of 44.1 and 48K
All common DSD formats

Bit depths

16, 24 and 32 bit

CONTROL APPS

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)

CONFIGURATION INTERFACE

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

HARDWARE

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

2 TB full SDD on spring suspension system, with sata noise filtering and sata protocol tuning for lower EMI

Storage upgrades

Optional 4 TB or 8 TB full SSD. Please ask your reseller for pricing.

CPU

J5040 tuned to a more constant power draw for lower software jitter. More modern and twice as fast than some competitors who use the outdated N4200

Memory

8 GB, plenty for Roon even when importing larger collections.

SUPPORTED STREAMING SERVICES

Roon

Internet radio, Qobuz and Tidal

Logitech Media Server

Internet radio, Qobuz, Tidal, Spotify and any service for which an LMS plugin is available

REQUIREMENTS

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 dual linear power supplies

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 RAAT or Squeezebox compatible endpoints

PHYSICAL

Colour

Black or silver

Weight

Server 5 KG
PSU 1.85 KG x 2

Dimensions

PSU: 240 x 130 x 75mm (each)
Server 435 x 325 x 60mm (W x D x H, 69mm including feet)

What’s in the box

Server
Dual PSU each with DC cable
Manuals & Quick Guide

Chassis

Modular chassis which will support future hardware updates such as new main boards as they come to market