AC-1204 MKII AIR | C15

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.

Gerade bei Audiokabel-Verbindungen zwischen den einzelnen Geräten spielt die Kabelkapazität eine entscheidende Rolle. Da die Signalquellen sehr schwach sind und empfindlich auf hohe Kabelkapazitäten reagieren, sind Audiokabel geradezu prädestiniert für eine Luft-Isolation durch die Air-Helix-Technologie. Für das Referenz NF-1204 Air haben wir darüber hinaus einen komplett neuen RCA-Stecker entwickelt, der vollständig lötfrei verarbeitet wird. Er besteht aus mehreren Teilen, welche erst im Laufe der Konfektion zusammengefügt werden. Wie beim Lautsprecherkabel wird zunächst die dünne Lackschicht von den hochreinen Kupferdrähten des „Cross Link Super Speed“-Hohlleiters maschinell entfernt, anschließend der aus Tellurium-Kupfer bestehende Kontakt-Pin des Steckers unter 1,5 Tonnen Druck mit dem Leiter verpresst. Auch die Kontaktierung der Abschirmung ist völlig neuartig: Sie wird jetzt hermetisch dicht verschraubt.

Because the largest current in the entire device chain flows in the speaker cable, a suitable conductor cross-section is required to transport the current with as little loss as possible. This current generates correspondingly strong magnetic fields and, as it is alternating current, there is a frequency-dependent resistance in the inductance of the cable. Speaker cables should therefore have a low inductance - and this is exactly what the LS-1204 Air does: A particularly ingenious arrangement of the conductors, the 4-fold “multicore” structure, reduces the inductance value of the cable so that it behaves completely sound-neutral over a wide frequency range. In addition, the magnetic fields generated around the individual conductors overlap and neutralize each other. This means that all frequencies are transported unhindered and without time delay, which enables a fabulously open and detailed musical performance. The four conductors of the LS-1204 Air are split at the end of the air helix in so-called aluminum splitters for the plug connection. In the area between the splitter and the plug, in-akustik uses highly flexible molded parts made of a special elastomer. These are fixed in the splitter with a specially developed plastic plug. This ensures that the cable also remains reliably flexible in the connection area.

Der Vollverstärker I35 Prisma ist der neueste Abkömmling der mittlerweile ikonischen 30er-Serie von Primare Vollverstärkern. Er ist der erste mit dem neuen UFPD 2 Power System, eine radikale Überarbeitung der preisgekrönten vollanalogen Class-D-Technologie UFPD. Bare Nielsen, Primare Engineering, erläutert das Innovationsprinzip: „Wir bringen nur dann neue Produkte auf den Markt, wenn wir die vorhandenen Primare Modelle in wesentlichen Punkten verbessern können. Mit UFPD 2 haben wir jetzt eine neue Leistungsplattform, die das volle Potenzial der Class-D-Technologie ausschöpft.“ Der I35 Prisma liefert 150 Watt bei 8 Ohm absolut linearer Verstärkung über die gesamte hörbare Bandbreite und liefert einen natürlich schnellen, sauberen und vitalen Klang mit der beispiellosen Fähigkeit, jede Musik mit äußerster Lebendigkeit rüberzubringen. Neben den voll symmetrischen analogen Eingangsoptionen bietet der I35 Prisma eine vollwertige DAC-Stufe mit PCM 768 kHz- und DSD 128-Umwandlung sowie eine Prisma Konnektivitäts- und Steuerungstechnik.

Music is always very dynamic and generates a very impulsive current consumption on integrated amplifiers, power amplifiers or active loudspeakers during playback. These rapidly changing current increases and decreases result in extreme current peaks, which generate strong magnetic fields and interference emissions and lead to power losses at line and transition resistors. However, such current peaks must also be fed to the components without delays and without loss, as any inhibited current flow, regardless of where it occurs within the hi-fi / high-end chain, has a negative impact on the sound. As is known from physics, electrical conductors not only have resistance but also capacitive and inductive properties that disrupt the flow of energy from the socket to the hi-fi device. This means that the supply line from the wall socket and from the power strip or power station to the hi-fi / high-end system plays a very important role. For these reasons, we have developed the AC-1204 AIR MKII. It is based on the legendary Air technology, which we have already used in the LS-4004 AIR or LS-2404-AIR speaker cables, for example, and which has caused a sensation in the high-end scene worldwide. The specially developed clips keep the individual conductors at fixed distances and insulate them from each other using air. The “air dielectric” ensures low capacitance between the conductors. The multicore structure compensates for the interference and magnetic fields caused by the current peaks. As a result, the line inductance is extremely minimized. In addition, the skin effect is greatly reduced by the large number of individual conductors. This is caused by the steep current edges associated with high frequencies. By distributing the current over many cores, the actual usable conductor cross-section is increased in addition to the general increase in the overall cross-section. Thanks to these technical refinements, the AC-1204 AIR MKII mains connection cable is able to supply the components with energy with ease, even during extremely dynamic passages, so that their potential can fully unfold. As soon as electrical energy is transported, electromagnetic interference fields inevitably arise. To avoid this, the AIR cables are shielded with a dense braid of tinned copper. This protects the neighboring audio components and cables in particular from radiated interference fields caused by the high current peaks in the power cable. The many special features of the AIR mains connection cables therefore counteract all unwanted effects and make them what they are: outstanding energy pipelines for perfect audiophile sounds.