Product information "NF-204 Micro AIR | RCA "

Because the outputs on hi-fi devices only supply extremely weak signals and are sensitive to high cable capacitance, the capacitance of a cable plays a significant role when connecting components together. A “low-pass filter” can be created that cuts off high frequencies and also causes phase shifts. This is the reason why RCA and XLR audio cables are ideal companions for the air-based insulation used in the MICRO AIR technology. Another special feature of the NF-204 Micro AIR is its symmetrical architecture, which guarantees high immunity to EMC radiation. Alone or in combination with the LS-204/LS-204-XL, the NF-204 Micro AIR opens up the connection floodgates and allows your components to perform at their very best.

Application: High-end audio cable
Cable diameter: 6.5 mm
Conductor design: Concentric copper
Conductor material: High-purity OFC copper
Conformity: CE, REACH, RoHS
Connector assembly: Pressure-grouted contacts (1.5 tonnes)
Connector housing: Solid metal
Contact enhancement: Rhodium-coated
Contact material: Tellurium copper
Customized assembly: On request
Design: Symmetrical
Dielectric: Air chambers
Floating shield: Yes
Jacket: PE network jacket
Length: 0.75 m, 1 m, 1.5 m
Shielding: 2-fold (braid + foil)
Product group: Home HiFi
Product category: Analog interconnects
Quality: Referenz
Technology: Micro AIR Double mono
Connector: 2 x RCA > 2 x RCA
Made in Germany: Yes
Free trial listening: Yes
"If you use the "Micro AIR" cables in an adequate (i.e. high-quality) environment, you get first-class connectors for a reasonable price in both the NF and LS series. Particularly in combination with each other, they can almost be regarded as a "bargain". You can save money in the right place – these cables are definitely not stingy with acoustic details. I wouldn't be surprised if they soon became the unsung stars in the manufacturer's cable portfolio." Hifi-Stars | 05-2020
Go to the test report
"We registered a clear improvement in comparison with no-name cables. Wherever did this airiness come from, and the fresh, deep-bass power? We clearly need to credit the cables with these wondrous changes. Once again, we found ourselves astonished by something many experts would banish to the homeopathic corner. But they would be wrong! Cables aren’t just interchangeable flimsy wires; they can completely transform a sound profile. A cable can calm down an abrasive system, and the right cable can bring new vitality to sleepy audio chains. In-Akustik once again proves to be a model manufacturer, this time at a very decent price." Audio | 05-2020
Go to the test report
"The new 204 series is technically sophisticated, free of any esoteric touches or perplexing show effects, and an example of perfect craftsmanship. If you’re looking round for a new or alternative cable that will satisfy your needs for years to come, look no further! Just give it try!" Fidelity | 04-2020
Zum Testbericht
Our NF-204 Micro AIR loudspeaker cable has taken top place in the AUDIO Readers' Choice 2021! We would like to thank everyone who voted for the NF-204 Micro AIR. Your support makes this award possible and shows us that we are on the right track with our technology. We hope that you continue to enjoy our products and look forward to many more musical moments with you. We would like to express our thanks to everyone concerned! Audio Readers' Choice | 2021
  • 1 x stereo set Referenz NF-204 RCA Micro AIR
  • Quality certificate
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NF-204 Micro AIR | RCA
NF-1205 AIR | RCA
NF-104 Micro AIR | RCA
NF-RCA
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Description

Because the outputs on hi-fi devices only supply extremely weak signals and are sensitive to high cable capacitance, the capacitance of a cable plays a significant role when connecting components together. A “low-pass filter” can be created that cuts off high frequencies and also causes phase shifts. This is the reason why RCA and XLR audio cables are ideal companions for the air-based insulation used in the MICRO AIR technology. Another special feature of the NF-204 Micro AIR is its symmetrical architecture, which guarantees high immunity to EMC radiation. Alone or in combination with the LS-204/LS-204-XL, the NF-204 Micro AIR opens up the connection floodgates and allows your components to perform at their very best.

Cable capacitance plays a decisive role, especially for audio cable connections between individual devices. As the signal sources are very weak and react sensitively to high cable capacitance, audio cables are virtually predestined for air insulation using air helix technology.

In addition to this, we have also developed a completely new and entirely solder-free RCA connector for the Referenz NF-1205 Air. It consists of several component parts that are only joined together during the course of the assembly process. As with the loudspeaker cable, the thin layer of enamel is first removed from the high-purity copper wires of the "Cross Link Super Speed" waveguide by machine. Then, the contact pin of the connector, which is made of tellurium copper, is pressure-grouted with the conductor using a force of 1.5 tonnes. The connection of the shielding is also completely new: It is now hermetically sealed with screws.

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Compared to the NF-204 Micro AIR, the NF-104 Micro AIR has a conventional, coaxial architecture. In addition to the Micro AIR technology, another special feature of the NF-104 is the newly developed RCA connector, which is completely solder-free. Omitting the solder significantly reduces transition resistance and element formation. As the name suggests, the NF-104 harmonizes particularly well with the LS-104 speaker cable. Both cables are the perfect way of entering the world of Micro AIR technology.

The Exzellenz audio cable has two separately routed shields. This optimally protects the sensitive audio signals against external interference. The silver-plated conductor transports the analog music signal extremely precisely and enables a crystal-clear and dynamic sound even with high-resolution audio formats. The solid, 24k gold-plated full metal connectors ensure optimum contact and minimal contact resistance on a long-term basis.

Price

€389.00*

€979.00*

€279.00*

€129.00*

Application
High-end audio cable
High-end audio cable
High-end audio cable
HiFi audio cable
Cable diameter
6.5 mm
13 mm
4.2 mm
7 mm
Conductor design
Concentric copper
Cross Link Super Speed waveguide
Concentric copper
Solid conductor
Conductor material
High-purity OFC copper
High-purity OFC copper
High-purity OFC copper
High-purity OFC copper| Silver-plated
Conformity
CE; REACH; RoHS
CE; REACH; RoHS
CE; REACH; RoHS
CE; REACH; RoHS
Connector assembly
Pressure-grouted contacts (1.5 tonnes)
Pressure-grouted contacts (1.5 tonnes)
Pressure-grouted contacts (1.5 tonnes)
-
Connector housing
Solid metal
Solid metal
Solid metal
Solid metal
Contact enhancement
Rhodium-coated
Rhodium-coated
Rhodium-coated
24K gold-plated
Contact material
Tellurium copper
Tellurium copper
Tellurium copper
Brass
Customized assembly
On request
On request
On request
-
Design
Symmetrical
Coaxial
Coaxial
Double coaxial | Double mono
Dielectric
Air chambers
Air
Air chambers
PE
Floating shield
Yes
-
-
-
Jacket
PE network jacket
PE network jacket
PE network jacket
Textile braid
Length
0.75 m; 1 m; 1.5 m
1 m; 1.5 m; 2 m
0.75 m; 1 m; 1.5 m
0.75 m; 1.5 m; 3 m
Shielding
2-fold (braid + foil)
Dense copper braid, tin-plated (oxidation protection)
2-fold (braid + foil)
2-fold (braid + foil)
Product group
Home HiFi
Home HiFi
Home HiFi
Home HiFi
Product category
Analog interconnects
Analog interconnects
Analog interconnects
Analog interconnects
Quality
Referenz
Referenz
Referenz
Exzellenz
Technology
Micro AIR; Double mono
AIR Helix Point-to-Point; Double mono
Micro AIR; Double mono
Double mono; Tweeter optimized
Connector
2 x RCA > 2 x RCA
2 x RCA > 2 x RCA
2 x RCA > 2 x RCA
2 x RCA > 2 x RCA
Made in Germany
Yes
Yes
Yes
Yes
Free trial listening
Yes
Yes
-
-
Connector highlight
-
RCA SL (solderless)
-
-

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Micro AIR technology

We are not able to switch off the laws of nature, so the best we can do is use them as ingeniously as possible. Due to the laws of nature, every cable exerts so-called parasitic effects. These include capacitance – the capacity to store energy like a battery and release it again with a time delay. This effect has a considerable impact on the transmission of audio signals and is therefore unwelcome. Capacitance is a physical property, and its value depends on a number of different factors, one of the most important of which is the insulation material used, also known as the “dielectric”. The dielectric material can considerably increase the capacitance of the cable. Because air doesn’t do this, it’s ideal for insulation purposes. One of the insulation elements in the Micro AIR technology is a complex, diamond-shaped structure. The tiny chambers created by this structure increase the distance between the conductors and raise the air content of the insulation. This method reduces troublesome capacitance effects and optimizes the cable’s transmission characteristics for the sensitive audio signals it needs to transport.

Concentric copper

Unlike the sometimes chaotic arrangement of individual wires in conventional conductor designs, concentric copper conductors are arranged in a precisely defined multi-layer pattern. This design reduces irregular contact points between the wires, which harmonizes the signal flow and minimizes runtime differences. Impulses can be reproduced with pinpoint accuracy and the spatial information of the music is retained. A thin layer of polyethylene protects the high-purity copper from oxygen and thus from oxidation.

Copper is the best electrical conductor after silver under normal conditions. Compared to cheap CCA (Copper Coated Aluminum) in particular, copper has a significantly better conductivity and is also mechanically more resilient. The conductors of the Micro AIR cables are made of high-purity OFC (Oxygen Free Copper).

  • "The new 204 series is technically sophisticated, free of any esoteric touches or perplexing show effects, and an example of perfect craftsmanship."

    Roland Schmenner | Fidelity Magazine
  • "We registered a clear enhancement in comparison with no-name cables. Wherever did this airness come from, and the fresh, deep-base power? We clearly need to credit the cables with these wonderous changes."

    Andreas Günther | Audio 05-2022

Electrostatics and capacitance

It’s something we’re all familiar with: when you take off a sweater with a high synthetic content you hear a crackling sound. The reason for this is that the integrated plastic material stores electrical energy, and then discharges it again. The same thing happens in the dielectric material of a cable. It “absorbs” electrical energy like a sponge and then releases it again. In the case of an audio cable, however, this electrical energy is part of the audio signal.

This problematic storage capacity of a cable is referred to as its “capacitance”. While capacitors intended to store energy should have a correspondingly high capacitance, the capacitance of a cable should be as low as possible. If this is not the case, it can have a serious detrimental effect on the transmission characteristics and also lead to interactions with connected electronic devices. The ideal solution is therefore air insulation such as that implemented with the Micro AIR (and previous AIR technology), reducing the capacitance to an absolute minimum.


Cables should not make any sound

The Referenz AIR series cables have already caused something of a sensation in the world of high-end connections. And we have used the very same principles of physics to develop our Referenz Micro AIR series. As the name suggests, air as insulation also plays a key role with these high end connections due to the excellent dielectric properties.

Cables in general don’t make any sound; they have a filtering effect and interact with the devices. We believe audio connections should be as unobtrusive as possible and cause no sound coloration. These would perhaps be astonishing to hear the first time, but they actually distort the original, and eventually are annoying. The trick is to adapt the physical filter effect through the architecture and choice of materials so that losses and interactions are reduced to a minimum. This was our goal when developing the Referenz Micro Air series – and we believe we have achieved our goal once again.

Made in Germany

Just like the AIR Helix cables, the Referenz high-end cables with Micro AIR technology are also manufactured in our own factory in Germany. Along with the complex, manual assembly of the cables, this of course also includes the corresponding quality control. Every cable is put through its paces after production. Both functional tests and mechanical tests are carried out. And of course we also check the live performance as part of product development – for maximum precision and low-loss signal transmission.

The cable manufacturing unit

The beating heart of in-akustik is our manufactory. This is where our success story is rooted – permeated by a congenial working atmosphere, a love of music and a passion for detail. At in-akustik, we believe musical enjoyment stems from a listening experience that remains as close as possible to the original recording and the artist’s interpretation of the piece. That’s why we boast a committed workforce that combines curiosity with a keen sense of precision. With a fascination for music and things that are really special – like the development of our complex AIR cables.

You might also be interested in this:

NF-204 Micro AIR | XLR
Referenz Micro AIR Quality: Referenz Air dielectric
Length: 0.75 m
Because the outputs on hi-fi devices only supply extremely weak signals and are sensitive to high cable capacitance, the capacitance of a cable plays a significant role when connecting components together. A “low-pass filter” can be created that cuts off high frequencies and also causes phase shifts. This is the reason why RCA and XLR audio cables are ideal companions for the air-based insulation used in the MICRO AIR technology. Another special feature of the NF-204 Micro AIR is its symmetrical architecture, which guarantees high immunity to EMC radiation. In addition to this, we have also developed a completely new and entirely solder-free RCA connector for the Micro AIR series. It consists of several component parts that are only joined together during course of the assembly process. The cable ends are prepared in our cable manufacturing unit, with meticulous care and a passionate attention to detail. They are then inserted into contact pins made of tellurium copper and pressure-grouted using a force of 1.5 tonnes. Alone or in combination with the LS-204/LS-204-XL, the NF-204 Micro AIR opens up the connection floodgates and allows your components to perform at their very best.

€359.00*
LS-204 Micro AIR
Referenz Micro AIR Quality: Referenz Air dielectric
Connection type: SW | Length: 2 x 3 m | Connector: Banana
Like the flagship model, the LS-204 is also based on Micro Air technology. The difference lies in the multicore architecture. Compared to the XL version, the LS-204 has four instead of six Concentric Copper conductors. This cable boasts an agile character and was primarily developed for slim floorstanding speakers with smaller bass drivers. The Referenz LS-204 Micro AIR is available as a single-wire version with BFA bananas or spade lugs, or as an Easy Plug version.

Variants from €659.00*
€749.00*
Phono-202 | RCA - RCA
High-end phono cable Quality: Referenz Double shielding
Length: 1.5 m
Precisely because audio signals are so sensitive, we have equipped our Referenz NF-202 phono cable with some extremely effective technologies: Optimum DUO-PE II insulation, air-filled PE tubes, an innovative GAP connector and, above all, extremely fine, solid conductors made of high-purity OFC copper guarantee uniform runtimes and crystal-clear signal transmission. The ground and signal conductors are the same size and arranged symmetrically. The PE network jacket prevents micro-vibrations.

€379.00*