Test: Network Amplifier Audionet DNA

The network-enabled integrated amplifier DNA (9600 euros) from Audionet has good genes: with him, promising company name now becomes the program.

After now 18 years come true at last, what the visionary name Audionet expresses since foundation of the Bochum-based high end manufacture: the bridge between high-quality music playback and network-based, almost unlimited variety of programs with instant access. The latest, 9600 Euro Audionet creation, which in stereoplay celebrates her world-exclusive debut of the House very pragmatic means “Digital Network Amplifier”, short DNA- makes this possible.

The actual appearance of this “missing link” of Thomas Gessler and his men had in 1994 only vague notions. But even then, it was clear that the in-house, truly outstanding analogue amplifier technology has what it takes to defy even the fiercest adversaries of digital. So could Gessler & co. of the audiophile future left counter. Who’s as surprised that a genuine analog amplifier is the DNA in the bottom of his heart? And while size XXL with rich 25 kilograms net weight.

The DNA proud 190 Watt made also for the power measurement in the stereoplay-measuring laboratory at 8-ohm loads and at 4-Ohms final even 365 Watts per channel locker – all with high bandwidth of 1 Hertz to over 100 kHz and a level of distortion can be described quite as “hardly measurable”. Behind this strong performance are two shed 700 VA toroidal transformer and a considerable capacity of a total 144 000 Microfarads as an energy source.

Although the heavyweight Bochum is called “Digital Network Amplifier”, it is designed not only for just such sound sources. About four analog line level inputs, one of electronically balanced, classic equipment such as CD players & co. find enough connectivity. Even vinyl lovers remain in the DNA not sidelined: the optional Phono Board occupies a high level input though, offers but either MM or MC operation – even with switchable gain up to 70 dB.

And because Audionet realized also the volume control with the recognized high-quality precision resistor chain chip PGA 2320 of Burr-Brown analog has the DNA by nature a fully analog signal path according to all rules of the audiophile art. This means first time extremely short signal paths through Ultra Compact PCB construction in Surface-Mounted-Device-(SMD-)Technik, what is also less sensitive makes the DNA against high-frequency interference.

The finest components are, of course, a matter of honour – so the filter electrolytic capacitors in the power supply are specially made for Audionet, and the buffer capacitors in the amplifier and analog filter stages manufactured in Japan, characterized by a silk dielectric. Highest quality MICA capacitors from India and known in pulse solid film capacitors from Germany guarantee lowest loss angle and resonzfreies behavior.

Despite high-bandwidth works the DNA load stable; so he may waive fully inductors on the output – the excellent damping factor remains intact so that even at high frequencies. The internal wiring with wires, which are made of a gold-silver alloy, should provide the tonal finishing.

As a network compatible amplifier has the DNA of course a comprehensive digital section that is at least as diverse as out sophisticated. On both counts, it benefits from many years of experience, the Audionet in the design and construction of digital filter has. Long before the jitter discussion roused the D/A-converter-scene, the Bochum-based paid special attention to this topic. So the sound depressed, digital clock jitter from the input signal just keeps the DNA in multiple ways by the particularly sensitive for D/A converter chips.

The core of this sophisticated jitter firewall is a control circuit that first captures the supplied digital data to determine of the average speed in a memory chip. Highlight here is the subsequent, highly accurate quartz oscillator, which dictates the precise clock pulses to pass along the samples. Its fundamental frequency is using capacitance diodes in relation to the average speed of the input signal fine tuned: buffer-over or underflow is therefore excluded, while the jitter is elegantly filtered out by the long time constant.

The D/A conversion in the DNA is always carried out in the 192-kilohertz clock, Upsampled takes place before the digital filter. This is a powerful signal processor with Audionet exclusive filter algorithms optimized for many years on frequency and impulse fidelity. The following sample rates converter finally completely decouples the D/A converter chips by the digital input signal – any jitter has absolutely no chance.

Best technical prerequisites for a good-quality digital programmes – and that is more than abundant in the DNA: full UpnP compatible network playback via Wi-FI or Ethernet, Internet radio by vTuner service, iPod via USBport or up to six external digital audio sources on two optical or four coaxial S/P-DIF inputs – not to mention the analog, RDS-enabled FM tuner.

The possibilities to use the DNA are as extensive as the variety of programs offered. Directly, but not very comfortable this is achieved on the device itself through the front panel 4-line display. You have everything under control, however, with the optional Logitech Harmony remote, the user using Web account can even online programming on your own devices peripherals.

Extremely cool, it even particularly efficient uses of DNA but have the in-house, free downloadable remote control panel (RCP), which both runs as a Java program on Apple and Windows computers. Playlists can be from all participating network servers so as comfortable as complex device setups – for example, the programming of the digital equalizer section or the large subwoofer bass management. Of course also control commands from UPnP compliant commanders take the DNA–about the Plug Player for iPhone. Already in work Audionet own is DNA iPhone app for the.

The DNA in the listening test Symphony for more than 4,000 construction elements – so the hearing test could be the summarize Audionet DNA. Already the purely analog profession dominated the amp so well, that even high-profile power amplifier such as the pathos logos (56 points) had trouble to keep up. That was indeed acoustically slightly wider and sounded a hint heimeliger – but also less detailed and dynamic noticeably more restrained than the DNA. “Respectable shot, but lost“, noted stereoplay-Editor Dalibor Beric.

With rich reserves of power and high damping, the Audionet was an ideal game partner also for large-caliber speakers. Compact transducers such as the Dynaudio focus 160, which require some more life of its own, say less damping for full-bodied bass reproduction, played rather slim on the DNA, for it but all the more explosive.

The Bochum sound flavor discussions raised not only in digital network playback. In fact, the NetWorker Linn connected to its balanced line level inputs Klimax DS/1 sounded a touch creamy as the own streaming-compartment – but by no means better.

Whether it’s network or digital playback via S/P-DIF: the DNA inspired with extremely stable focus and sheer breathtaking sharpness. With 24/96-hi-res food, about the Fleetwood Mac classic “The Chain”, he seemed practically to materialize the music.

Thus it is clear: the Audionet DNA world champion is all network amps and thus new stereoplay-reference.

Audionet DNA

Manufacturer Audionet
Price €9600.00
Rating 58.0 points
Test procedure 1.0

 

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