Audionet DNP Digital Network Preamplifier


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The Birth of a New Reference

Audionet’s new DNP (Digital Network Preamplifier) offers a new standard in combining world class tone, dynamics and reference class sound staging with access to a multitude of digital formats, turning digital music data into a captivating listening experiences. The Audionet DNP is a high potential preamplifier that competes favorably with the world’s best, including our own, all analog Audionet PRE G2. The Audionet DNP is capable of handling both coarse and fine dynamic with outstanding musical exactness and finesse while paying special attention to imaging as well as room correction. In combination with Audionet’s new reference external power supply, the EPX, the DNP reaches new levels of performance, featuring the usual Audionet qualities of presenting music as realistic as possible and free from grain, distortion or coloration, while offering also rarely found level of convenience and customization in integrating signals from computers, servers, HDD, USB sticks and streaming from the internet.

The Audionet DNP is the first preamplifier which can be fully integrated into a network and controlled completely by Windows, Linux or Mac computers. Users worldwide noticed the outstanding ease of use, making programming the DNP a breeze. Our in-house developed software RCP (Audionet RCP – Audionet Remote Control Point) allows the user to organize complex functions and settings effortlessly through a GUI (graphic user interface).

aMM Screenshot


Audionet Music Manager for Android and iOS.

Additionally intuitive and powerful apps are available, which interfaces with all tablet PCs and smart phones, including all members of the Android and iOS operating systems (Audionet aMM – Audionet Music Manager for AndroidAudionet iMM – Audionet Music Manager for iOS). The RS-232 interface allows in addition for professional integration into home automation systems. At long last it can also be controlled in the classic way with the Audionet System Remote Control.

The Audionet DNP is the very first stereo preamplifier that is equipped with an ultra precise delay, bass, and equalization management, allowing for very nuanced balance adjustment while preserving the coherence of the music. The Audionet DNP allows near unlimited options to adjust the music reproduction, setting a new standard in high quality customizable music reproduction systems. To accomplish this, we have further enhanced our proven and acclaimed digital filter technology and integrated it into the DNP. A pair of subwoofers may be integrated, which are separately adjustable in all parameters. Room influences and tonal challenges and problems can be efficiently corrected. Speaker arrangements can be optimized for every possible listening situation. Joined with Audionet’s room analysis software, CARMA, which captures and analyzes the acoustical behavior and properties of the room, the Audionet DNP is now able to perform professional grade room compensation and correction for the passionate amateur and expert.

The Audionet DNP offers a wealth of features. It receives internet and FM radio, has a USB audio and a digital USB-A interface, can be upgraded with a high-class phono preamp, may be integrated into any home cinema due to its bypass mode and has an excellent onboard A/D converter which can be used for the high-class digitalisation of all analogue sound sources. The inputs can be named freely and different input levels matched. Connected via Audionet Link, other Audionet devices can also benefit from a remote turn-on. A trigger output can be used to control active speakers. And it has even an automatic mains phase recognition.

Maximal connectivity is provided by thirteen (13!) digital inputs, and five analogue inputs; digital ports include WLAN, LAN, USB Audio, and S/PDIF, electrical and optical. In analogue, the DNP features five stereo inputs, four coaxial, and one balanced. In total, the Audionet DNP is capable of powering up to two subwoofers and six power amplifiers.

Optionally, the DNP can be extended with our high-quality phono preamplifier board. Audionets DNP is compatible with the external precision mains adaptor EPX. Please note: the external precision mains adaptor EPS G2 is not suitable for the DNP, please use the EPX instead!


Network-compatible 2.2 channel stereo preamplifier.


Special Features

  • Streaming client for internet radio playback (vTuner Internet Radio Service), network devices (UPnP mediaserver) and music data from USB memory sticks
  • Supported streaming client formats: WAV (up to 192kHz/24bit), FLAC (up to 192kHz/24bit), ALAC (up to 96kHz/24bit), AIFF (uncompressed, up to 192kHz/24bit), AAC, WMA, OGG-Vorbis
  • USB 2.0 (USB-A) for external media control and USB Audio 2.0 (up to 192kHz/24bit)
  • 2.0 to 2.2 stereo operation mode (2 analogue subwoofer outputs or usable as multiroom outputs)
  • parametric equaliser and delay manager for all outputs
  • double-precision bass manager with 48bit resolution and freely adjustable crossover frequencies and filter properties
  • Audionet Intelligent Sampling Technology with asynchronous upsampling up to 192kHz/24bit
  • Precise clock generator for the elimination of clock flank deviations (jitter)
  • Sampling frequencies and resolution of the digital inputs: 32 kHz to 192kHz/24bit
  • Audionet HighBit interface for all audio data including DVD-A and SACD
  • FM radio receiver with RDS function
  • Audionet ULA technology (Ultra Linear Amplifier)
  • Fully DC-coupled, no capacitors in the signal path
  • One 100 VA toroidal mains transformer for analogue signal processing
  • 62.000 µF total filtering capacitance
  • Separate power supplies for digital and analogue section
  • Gold-doped, pure silver, solid core signal cabling
  • Microprocessor with dedicated power supply controls and handles all functions
  • Remote activation of other Audionet component via Audionet Link (optical fiber)
  • Headphones output electronically switchable
  • Automatic mains phase detection

Bass manager

  • Management of one (mixed-mono) or two subwoofer (mixed-mono or stereo)
  • Data processing with 48bit resolution (double precision)
  • Channels/channel-groups can selectively be driven with the full signal or across the digital frequency crossover with adjustable crossover frequencies and filter qualities.
  • X-Bass: Subwoofer can be configured as additional active bass
  • Filter quality adjustable from 0,3 to 2,00 in 12 logarithmic steps
  • Crossover frequencies adjustable from 20 Hz to 303 Hz in 51 logarithmic steps
  • Subwoofer phase switchable

Delay manager

  • Adjustment range: Distance Listening position <-> loudspeaker 0m to 7m
  • Automatic calculation of the delays resulting from the distance settings


  • 5 MPE (Minimum Phase Equalizer) for each main channel and Sub
  • Adjustment range for each MPE: Filter type Peak-Filter, High-Shelve, Low-Shelve, high-order filter,low-order filter
  • Frequency (f): 20 Hz to 20 kHz, 128 logarithmic steps
  • Gain: -12 dB to +6 dB, 0,5 dB-steps
  • Quality (Q): 0,3 bis 8,0, in 20 logarithmic steps
  • Import of CARMA equalizer settings


  • WLan 802.11b/g/n – WEP, WPA, WPA2
  • LAN/Ethernet (RJ 45)
  • USB 2.0 for external media control
  • RS232 (control input)


In- and Outputs

Analogue audio inputs: 4 pair RCA Line, gold plated, Teflon insulated
1 pair Neutrik XLR balanced, gold plated
Digital audio inputs: 4 RCA, 75 Ohm, gold plated, Teflon insulated
4 optical (TosLink)
1 Neutrik XLR AES/EBU, 110 ohms, gold-plated, Teflon insulated
1 USB Audio type B
Audio outputs: 2 pairs RCA, gold-plated, Teflon insulated
2 RCA sub out (multiroom), gold-plated, Teflon insulated
1 pair Neutrik XLR balanced, gold-plated
6.3 mm socket (headphones), electronically switchable
Additional connectors: 1 USB 2.0
1 Ethernet (RJ 45)
WLAN antenna (SMA)
FM-antenna, 75 Ohm
Screw connector for turntable earth connection
Screw connector for additional earth connection, gold plated
Remote activation: 2 Audionet Link OUT, optical (TosLink)
3,5mm-jack plug as trigger output with 12V-switching voltage
External power supply EPX: 5-pin socket
Mains: IEC male power insert connector

Technical Data

Frequency response: 0 – 1,000,000 Hz (-3 dB), DC-coupled
2 – 1,000,000 Hz (-3 dB), AC-coupled, DC servo 1st order
Slew Rate: 10 V/µsec
Channel separation: between channels: >100 dB at 20 kHz
between inputs: >108 dB at 20 kHz
Input voltage: max. 5 Vrms
Input impedance: Line: 50 kOhm real
XLR: 7 kOhm real
Output voltage: Line: max. 6 Vrms
XLR: max. 12 Vrms
Headphones: max. 6 Vrms (max. gain 6 dB)
Output impedance: Line: 24 Ohm real
XLR: 48 Ohm real
Headphones: 24 Ohm real
Filtering capacity: 62,000µF

Analogue inputs

THD+N: <- 108 dB from 20 Hz up to 20 kHz at Vin 3 Vrms
SNR: > 120 dB at 1kHz referred to Vin, max

Digital inputs

Sample frequency: 32 up to 192 kHz
THD+N: Front: <-104 dB


Power consumption: < 1 W Stand-by, max. 150 W
Mains connection: 220…240 V / 50…60 Hz or 100..120 V / 50..60 Hz 
Dimensions: width 430 mm
height 110 mm
depth 360 mm 
Weight: 12 kg