Beyond the digital realm: The apolitan Sperling.
We asked ourselves: How far can we go?
We provide the answer with the apolitan Sperling.
Through intensive development work and the abandonment of usual standards
A music server has been created that pushes the boundaries of technology to their absolute limits.
We combine decades of experience with uncompromising component selection for one goal:
analog perfection.
"The apolitan Sperling is a reference music server that was developed,
to play digital music from a library hard drive
as well as streaming content from Qobuz and Tidal
to reproduce with the highest possible analog authenticity"
Each of our music servers still has a modular design.
There is a clear structure that is based solely on topological meaningfulness in relation to
interference between the assemblies
as well as being selected for the shortest signal paths and best performance.
The analog power supply takes up almost half of the available space.
in demand and is finally with a massive partition wall
separated from the server's components.
Chassis
The chassis was designed by us,
to meet all aspects of low vibration and the necessary airflow.
The base and lid are made from 6mm aluminum, the back panel from 10mm, the sides from 12mm and the front from 15mm aluminum.
CNC milled according to Aerospace Standard 6061 and then finely sandblasted,
to achieve an elegant matte finish. The power button and the device feet were CNC machined from stainless steel.
Power Supply
A fast, stable power supply is a quality-determining factor in every audio component. A good power supply quickly becomes expensive, which is often the reason for suboptimal solutions.
For the apolitan Sperling we have developed a linear analog power supply that provides a separate power supply unit for each required voltage. Completely independent of each other.
This power supply could easily drive a power amplifier and our experience has shown that a digital source device reacts just as critically to circuit technology and component quality as a purely analogue component.
We invested a lot of time in the development of the power supply,
Because you can't just buy something like this off the shelf. Strictly speaking, it's the fourth generation.
It's amazing how much authenticity we were able to gain in the presentation simply by optimizing the power supply.
Transformer
The power supply unit is powered by a full-grown custom toroidal transformer from the best manufacturer in the world. The decision was quickly made to go for the highest possible level of development, multi-shielded and encased in a stainless steel cup. Supreme Audio Grade
Buffer capacitors
A whole bank of capacitors supports the power supply. There are also very big differences in this area. In keeping with the overall concept, there are 105° Low-ESR Audio Grade capacitors, which are also appreciated by developers of the most exclusive preamplifiers and power amplifiers
Rectification
The apolitan Sperling also works with DC, so the alternating AC voltage must be rectified. We use ultra-fast Schottky diodes, one quartet per voltage line. These are also normally only found in reference class audio equipment
Voltage regulator
High-precision LDOs are used to set and regulate the various voltages required. Voltage regulators that have a built-in reference voltage and independently keep the set voltage stable. They are very high-quality regulators that guarantee an extremely low ripple (i.e. they deliver battery-like current) and can also withstand very high loads. Overall, the voltage regulators can easily deliver almost 30A of current
EMI Filter
Nowadays, our power grids are under a lot of strain and unfortunately, in addition to the voltage, they also carry a lot of electrical pollution. It is very advisable to counteract this, so the Sperling has an effective EMI filter directly at the power supply input
DC Filter
Even if DC is required at the output, DC has no place at the input of the power supply. For this reason, we have also protected the apolitan Sperling against this possible interference
Computer Power
Sovereign computing power & modular design
Power reserves for the highest demands: Hardly required in normal operation,
Our data center offers enormous reserves for computationally intensive tasks.
Whether real-time upsampling (e.g. for our DSD DAC apolitan Nachtigall) or
Complex room corrections via DSP – the system remains consistently stable and responsive.
Future-proof & durable: Since nobody knows what formats the future will bring,
We rely on a modular hardware setup based on international industry standards. This means for you:
Maximum ease of maintenance and the assurance of being equipped for future requirements.
OS
The Roon Optimized Core Kit uses a hyper-slim operating system optimized exclusively for music playback
Operating system to be used
Full-fledged Roon Core
A full-fledged Roon Core is installed on the apolitan Sperling, which manages all control processes of the omnipotent Roon system
Native DSD
The apoltan Sperling plays almost every digital format, of course also our favorite 1Bit DSD format
Galleries
no.1
no.2
no.3
Configuration
The apolitan Sperling is completely preconfigured and ready for immediate use.
Technical Specifications
USB(DAC)
SPDIF
TOSLINK
AES BUS / EBU
I2S
Ethernet: 1xRJ45 Ethernet
USB: 1x USB 2.0 (DAC), 2x USB 3.0 (Daten)
HDMI: Service
Option: optional input, unused
Remote: Power Remote Connector for DSD DAC apolitan Nachtigall
WAV, AIFF, FLAC, ALAC, AAC, MP3
PCM bis 768kHz, DSD nativ up to DSD512 | 16bit, 24bit, 32bit
Web browser via any Internet browser: Windows, Linux and OSX
App for iPhone/iPad, Android and Windows
Control via monitor, keyboard and mouse
HDD for the operating system: Samsung SSD Pro m.2
HDD for the music library: Samsung SSD Pro m.2
CPU: Intel i7-Core
RAM: 8GB
Streaming Services: Qobuz, Tidal, Internet Radio
Roon Compatibility: Roon Core and Roon Bridge
CD Metadata: automatisch
LAN Internet connection to have access to album meta files, for streaming services and the internet radio as well as for software updates
Recommended app: Roon Remote (iOS and Windows)
For streaming services such as Qobuz or Tidal, usage costs are incurred, depending on the provider
Mains: 230V AC / 115V AC, 50/60Hz (default setting can be selected via hardware), IEC plug
Weight: approx. 16Kg net
