Audionet DNP in the Test

Is an audiophile pre amp with networking – there such thing? Starting immediately, Yes: he is called DNP, comes from Audionet and will be tested for the first time.

The typical three letter nomenclature in components of the Bochum-based high-end specialists Audionet is unique – also at the brand new, 9,600 euro expensive DNP, what fur “digital network pre-amplifier” stands. Would make fu? r the purist music lover actually already said everything and you might now quite genu? shoes to the PHP? annual listening and practice test u? mountain marriages – there were not there the Audionet company motto, what there is: “Enjoy the Science”

And you can take that literally at the DNP of in good conscience. Because he is certainly no simple pre-amplifier which one fitness has helped with a network Board of the rod to the streaming. Rather it represents the link between the two worlds, which saw the Bochumer grow together nearly two decades ago – finally the name Audionet is no coincidence.

Netu? course network-based audio playback means sound quality in itself does not automatically – essential hierfu? r is rather the technical trappings. “Enjoy the Science” applies in this respect but also: so are the originally? length of Audionet in scientific medical technology: in the development of super sensitive, analogue amplifier electronics fu? r highly sensitive sensors.

A sophisticated analog technology creates not only ideal fu? r all conventional sources, but is also the best base fu? r an uncompromising digital signal processing. Finally this is subject to ultimately always analog, electrical laws transmit digital information.

So, for example, that is currently hot (jitter) shaking cycle basically discussed an analog phenomenon taken, whose impact is however u? ber that creeps in digital level and propagate. It is surprising therefore little that the jitter phenomenon fu? r Audionet was already a central issue, long before it was picked up by most other hi-fi manufacturers.

Equipment and processing

“No compromise” was also the motto for the DNP. Formally, this manifests itself in skillfully simple, timeless design, with a downright gigantic equipment package slumbers in the perfectly processed, thick-walled aluminum housing . With fu? the joyful connection DNP as a pre-amp is advisable nf analog and no less than eleven digital inputs also fu? r extremely large Hi-Fi systems.

In addition still the Network input, which not only fully high-resolution – up to going to the 24 bit/192 kHz format is suitable for use, but thanks to comfortable vTuner connection provides access to tens of thousands of Internet radio stations. If the network is not verfu time? should be available, the DNP provides even a built-in, RDS enabled FM tuner.

Although the DNP can connect wireless via WLAN with the domestic network, fu? r maximum listening pleasure at the high resolution streaming Audionet recommends but still the wired version. Specially fu? r this purpose to keep even an optional, Dedicated Ethernet cable ready, by means galvanic isolation may be u? precipitation network imported high-frequency interference of the DNP is to keep. Also optional is also a MC/MM-suitable phono module, the the analog line level input number fu? ennobles nf to the full-fledged phono input.

Unusual fu? r a streaming client, it is also that the DNP u? verfu over an USB-B input for the direct connection of a computer? gt – namely u? ber a fully-fledged, working in the low-jitter, asynchronous USB transfer mode. Moreover, it corresponds to the USB-audio – 2.0 standard, which he support native tranfer to down to the 24 bit/192 kHz format? appreciated – at Apple computers Mac OS 10 6 4 even without installing vendor-specific drivers.

So not enough bring the DNP also have a USB-host interface , uber that play, for example, audio files from memory stick or hard drive. In addition you? sharpen also Apple iPhone and iPod dock, where the mobile entertainer from Cupertino their audio information of course lossless digital means u? forward.

The DNP can play out its music signals from Copy protection? ND only on analog way – that? r but several ways: offers two parallel, single-ended RCA outputs he still a balanced XLR Output, which is fed by a separate buffer level. Daru? ber also brings the DNP still a unbalanced stereo subwoofer – connection, if necessary as full range output to supply a second listening area to which itself can be configured.

Details: network cable from Audionet

In medical technology, they are usually mandatory, in the HiFi sector, they can very nu? be addition: so-called Network isolators cause a galvanic separation between network and recipient and thus interrupting harmful compensation currents on the ground line. Depending on the network environment can have the noise-reducing effect of network isolators on the sound a positive effect.

Klang-Tuning per DSP

Another real Audionet domain is the digital filtering of audio signals. Even before the company existed in its present form, Bochum as an OEM supplier already built digital crossovers for the best loudspeaker manufacturers. Thus, the research of spatial-acoustic weaknesses and their targeted, electronic elimination was one of the main driving forces behind the founding of the company. It is therefore no coincidence that Audionet offers a very powerful room acoustics measurement and analysis tool with the free downloadable program CARMA 3.0.

The DNP also benefits a great deal from this room acoustics know-how: it offers a sophisticated, fully digital bass management for two separately controllable subwoofers (from an acoustical point of view the better solution since a stimulation at different places in the room possible resonances In the bass range). The separation frequency and the filter pattern can be fine-tuned as well, the virtual removal of the woofers to the listening position, allowing the bassists to be seamlessly integrated into the sound image even in terms of signal origination and runtime.

You Calc, the DNP provides digital working Equalizer also fully: per channel up to fu? nf fully parametric correction filters to the backend? gung, which can be set to boost or attenuation, bandwidth, filter history and center frequency.

Toy? No – but these filters allow a precise correction of determined by CARMA software, room acoustical vulnerabilities. Appropriate correction values, you can even directly from CARMA in the DNP u? trunsmeetted. Netu? of course can the equalizer but also suited to the Ausbu? use nails not optimally grained music material.

The signal path is evident with the DNP despite the powerful features amazingly short and of audiophile style: how works the part of high level with discreetly integrated operational amplifiers units, characterized by extremely high signal bandwidth. Through its interpretation as a DC voltage amplifier handles the DNP Abou? ber, not only the lowest frequencies, but can also forgo sound-reducing coupling capacitors in the signal path.

Interesting is also the signal processing in the digital level: so Under Sound of DNP? remaining jitter in the two stage plan. First, a synchronous data upsampling of the digital input signal is sent to 192 kilohertz, with a crystal oscillator More detrimental by capacitance diodes as a clock. Then, quite “clean” data in the 192-kilohertz clock to a Asynchronous sampling rate converter are passed, which considerably reduces existing remnants of jitter by complete separation of input and output signal. Then the actual D/A conversion is controlled by a super stable system clock.

Operation

Equal to four alternatives there are to use the DNP. The most direct, but also the least convenient is the device itself u? ber three buttons on the front panel. Significantly more relaxed controls u? ber the supplied system remote control that provides access to all functions of the DNP. Quite elegant, the DNP can be with the free Android app AMM (Audionet music Manager) browse: offers all fu? rs music necessary functions as a smart volume setting, source selection, and navigation buttons and scroll through music libraries and playlists. A free fu of version of iOS or iPhone and co. is soon verfu? available.

Total command u? ber the DNP allows the free downloadable Software Remote Control Point (RCP). It runs as a Java applet on Mac and Windows computers alike

In detail: the operation of the DNP

The free Audionet software Remote Control Point allows a comfortable configuration of the DNP and provides access to almost all autowalk? capture functions. You Calc, it allows easily create playlists and convenient management of all network sources – including iPod.

Hearing test

Charismatic proffered neutrality – that would probably best described the sound of the DNP. Although the oft-cited would be quite true, “sounds like a Stu? ck wire” a tick to nu? sober; Finally, he not merely delivered sound, but properly made music that always more lust snafus – and that even with iTunes u? literal data rates.

So he paired charm with u? berzeugender incorruptibility that manifested itself, for example, in extreme edge sharp appearance and ultra stable room figure. As seen by an excellent camera optics, he allowed mu? Hel OSes perceiving even finest details even in tightly arranged music material.

Conclusion

There are some excellent D/A converters, network players and Preamps – Audionet DNP is all in one. You About, autowalk? He gtu About au? BER stuff end operating concept and provides enough facilities.

 

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