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Audionet STERN


Designed by German design legend Hartmut Esslinger of Cupertino fame, our new über-performance preamp STERN combines Audionet’s unique electronics, stratosphere version, with a design quality that has not been seen in the realms of highenddom before.


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The patented FLOATING PANE DESIGN encorporates the ultimate audiophile qualities.

One amp to rule them all – STERN rises high above anything, anywhere – even our serial show winner PRE G2 (2015 “best sound” at RMAF, AXPONA, T.H.E.SHOW and HIGHEND).

“Surpasses the performance I’ve heard from any solid-state players at any price.” Greg Weaver, The Absolute Sound


4 pair RCA line, Rhodium (Furutech)
2 pair XLR balanced, gold plated (Neutrik)
1 D Sub 9 serial port (control only)
1 SMA for WLAN (control only)
2 pair Cinch line, Rhodium (Furutech)
1 pair Cinch inverted, Rhodium (Furutech)
2 pair XLR balanced, gold plated (Neutrik)
2 Audionet Link, optical
1 connector, gold plated, for additional earth connection
Frequency response:
0–2,200,000 Hz (-3 dB), DC coupled
Frequency response:
0.3–2,200,000 Hz (-3 dB), AC coupled
<-104 dB @ 20 kHz
<-116 dB @ 1 kHz
> 123 dB, 4 VRMS
Channel separation:
>144 dB, 20–20,000 Hz
Output impedance:
24 Ω real (Cinch line) 48 Ω real (XLR)
Output current:
max. 60 mA
Power consumption:
< 0.5 W stand by, typ. 100 W
220..240 V, 50Hz, Rhodium (Furutech)
Dimensions, Vertical:
Width 270 mm Height 500 mm Depth 505 mm 
Dimensions, Horizontal:
Width 450 mm Height 320 mm Depth 505 mm
38 kg
Finish Colours:
Silver or black
Light or dark color-TFT
Horizontal or vertical

Magnetically and capactively optimized circuit and device design without any ferro-magnetic materials.

Floating Pane Design for optimal resistance against microphonic effects and temperature stability.

The floating panels of the body are resonance-optimized by pads on an aluminum frame.

Mounting and bolted assembly of transformers made of stainless steel.

Double mono layout of circuitry and power supply for maximum channel separation.

Air Flow Design circuit boards for an optimum of cooling and stable quiescent currents.

Galvanic separation of all analog circuits by opto couplers.

The input and output sections as well as the volume control are implemented using enhanced, discrete Audionet operational amplifier modules with state-of-the-art mica capacitors.

Rhodium Cinch jacks by Furutech.

Volume controller on a double ball-bearing axis and with magnetic ratchet and optical sensing.

Volume controlled by electronic switches and real-time linearized precision resistor network.

DC coupled with no sound diminishing capacitors or coils, shortest signal paths.

One separate transformer per channel for the positive and negative half wave, leading to the perfect power supply.

Four encapsulated and decoupled 50 VA toroid transformers.

Main power supply capacitors 22,000 µF, optimized for very low impedance and made with silk dielectric.

Total capacitance of 176,000 µF.

Microprocessor control with separate power supply monitor and control of all functions, informing the user on a high resolution display.

By-Pass mode for integration into home cinema systems.

Audionet Link outputs for the remote control of further Audionet devices.

User definable names for each input, input levels adjustable for each input.

User selectable function to remove DC levels from signal sources.

Rhodium fuse.

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