Product information "AC-3502 | SCHUKO"

The Power Station AC-3502 by in-akustik reliably eliminates disruptive interference from the power grid. At the core of this power distributor is a parallel filter specially developed for audiophile applications, which effectively reduces both line-borne and device-generated noise—without compromising power delivery.

Thanks to star-wired internal cabling, it ensures uniform and low-loss power distribution to all connected audio components. As a result, the AC-3502 provides a stable foundation for a soundstage that remains both detailed and dynamic. All internal components are housed in a solid metal chassis, with a black anodized, brushed aluminum front panel that meets the highest aesthetic standards. The rear panel features six meticulously crafted outlets. A central IEC C20 mains input allows for easy cable replacement when needed—for instance, over longer distances. An integrated surge protection system safeguards valuable audio equipment against voltage spikes. All outputs can be conveniently controlled via the easily accessible "Power" button on the front panel.

Application: High End Power Station
Conductor material: High-purity copper
Conformity: CE, RoHS, VDE
Connectors: SCHUKO
Dimensions: 450 x 386 x 122 mm
Filter: Highly efficient parallel filter
Front panel: Brushed aluminium
Housing: Solid metal (powder-coated)
Internal cabling: Symmetrical star distribution
Load capacity: 3680 W total (230 V AC / 16 A)
Mains connection: High current IEC C20
Mains switch: yes | all-pole mains disconnection
Phase marker: yes
Product category: Power filter
Product condition : New
Product group: Power supply
Protection class: 1
Rated current: 16 A (total)
Rated voltage: 100 - 230 V AC | 50-60 Hz
Surge protection: yes
Technology : Parallel filter
Weight: 12,8 kg
Made in Germany: yes
Previous model AC-3500

"This is not voodoo, it is one of the best mains filters we have ever tested. The €1,600 are a sensible investment for any system." Audio | 03-2020

Go to the test report
Vorgänger AC-3500P

"Es ist wirklich faszinierend, wie viel Klang im Strom steckt. Ich erlebe viele meiner Schallplatten und CDs neu und höre zusätzliche Details, die mir vorher nicht so bewußt waren [...] Die Stromversorgung einer Hifi-Anlage wird zu Unrecht unterschätzt und der AC-3500P zeigt eindrucksvoll, wieviel klangliches Potential in der Stromversorgung steckt. Es ist jedoch Vorsicht geboten, denn das ist erst der Anfang und das Tunen der Anlage im Bezug auf die Stromversorgung kann süchtig machen…" Mario Buchinger | HiFi-Stars

Zum Testbericht
  • AC-3502 Power Station | SCHUKO
  • Standard power cable (1.8 m)
  • User manual
  • Phase tester
  • Quality certificate
  • Company profile

If you have any questions about product safety, please contact:
in-akustik GmbH & Co. KG
Untermatten 12-14
79282 Ballrechten-Dottingen
Germany
Phone: +49 (0) 7634 5610-0
Email: service@in-akustik.de

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Background

Where does excellent sound begin—and where does it lose its quality? This question has always been on the minds of audiophiles. One thing is clear: physical conditions have a significant influence on the sound reproduction of a hi-fi system. One factor that is often underestimated is the power supply. Ultimately, all we hear is household electricity modulated by the music signal. However, if this signal is mixed with interference or electrical influences from other consumers – whether from within the home or even from the surrounding area – the sound quality suffers. Devices with digital circuits, switching power supplies, charging stations for electric vehicles, and photovoltaic systems in particular cause increasing network distortions. These disturbances pose a major challenge for hi-fi components and have a negative effect on the sound image – comparable to an acoustic veil. Since very few music lovers have an independent power supply, they are dependent on the often heavily loaded public power grid. For them, sound optimization therefore begins at the power outlet—or even at the fuse box—since the section before that is beyond their control.

Parallel filters

Special filter solutions are required to eliminate interference from the power supply. However, conventional filters, especially serial variants, are notorious for impairing the dynamics of the sound image. The reason for this lies in the intermediate coils within the power supply, which increase the transition resistance and can slow down fast impulse currents. The Reference AC-3502 deliberately takes a different approach here: at its heart is a parallel filter specially designed to meet audiophile requirements, which effectively dissipates disruptive mains interference – both from the mains supply and from connected devices – without throttling the power supply. This is complemented by a decoupled subchassis that effectively absorbs mechanical vibrations of the filter elements caused by the 50 Hz mains frequency. The star-shaped cable routing also ensures that energy is distributed evenly to all connected devices. The Power Station AC-3502 thus forms a reliable basis for sound reproduction that is both finely nuanced and powerful.

Additional features

All of the electronics are housed in a robust enclosure, which is not only functional but also visually appealing thanks to its brushed aluminum front. There are six sockets on the rear panel, providing sufficient connection options for high-quality audio components. The central power connection in the form of a high-current socket (IEC C20) allows for easy replacement of the power cable – for example, for longer installations. Additional safety is provided by integrated surge protection, which reliably protects sensitive devices from voltage spikes in the power grid. Operation is convenient via a “Power” button on the front panel, which can be used to activate or deactivate all outputs simultaneously. An LED indicator provides information about the current operating status: if it lights up red, the sockets are deactivated; if it lights up blue, they are active.

  • "Wir haben viele Blender erlebt. Sie haben Weihwasser versprochen und Leitungswasser geliefert. Hier endlich ein Könner. In-akustik zeigt, was ein guter Stromaufbereiter zu leisten vermag. Der Klanggewinn war klar, überragend sogar. Schöner kann man High End nicht steigern. Wir sind kritisch – hier hingegen vergeben wir ein klares Highlight."

    Andreas Günther | stereoplay
  • "Wir haben viele Blender erlebt. Sie haben Weihwasser versprochen und Leitungswasser geliefert. Hier endlich ein Könner. In-akustik zeigt, was ein guter Stromaufbereiter zu leisten vermag. Der Klanggewinn war klar, überragend sogar. Schöner kann man High End nicht steigern. Wir sind kritisch – hier hingegen vergeben wir ein klares Highlight."

    Andreas Günther | stereoplay

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