"A new route to cable nirvana"
The LS- & NF-4005 AIR were tested by the online magazine the-ear.net (UK)
LS‑4005 Air: "Tonally this is a warm and rich sounding cable, probably very close to neutral and not at all Germanic in the old fashioned sense of bright, tight and forensically clean. [...] You get a good old iron fist in a velvet glove presentation that delivers power with smooth leading edges that allows well recorded vocals a rare degree of purity. [...] I rarely find speaker cables that I can tolerate let alone enjoy but the 4005 Air combination is very easy to enjoy indeed [...] in-akustik clearly go to great lengths with the 4005 Air cables and this pays off with a richness and depth of sound that makes the asking price seem reasonable. These are not off the reel cables, this company hasn’t specced a topology and had it manufactured by a large cable company, they build them by hand."
NF‑4005 Air: "Adding the NF‑4005 Air interconnect to the mix enhanced image projection still further and brought out extra detail which made the sounds seem more like they were in the room. [...] They manage to deliver a huge amount of coherent musical detail which makes the end result extremely engaging and real sounding."
Jason Kennedy | the ear (UK) 10-2025 Read the reviewTo the LS-4005 AIR
To the NF-4005 AIR XLR
To the NF-4005 AIR RCA
Silver Sound in the Air
"The NF-2405 and partnering LS-2405 Air Pure silver cables have reframed my opinion and I will be looking out for the material at every opportunity from now on." Jason Kennedy | the-ear.net
"A new route to cable nirvana"
The LS- & NF-4005 AIR in the ear magazine’s review: "Speaker cables that I actually enjoy listening with are rare, but the combination of the 4005 Air cables makes listening particularly enjoyable." Jason Kennedy | the ear (UK)
CAT-2405 AIR review on hif.nl
The CAT-2405 AIR presents itself as a very pleasant cable, I can’t find any negative trait, and it certainly ranks among the top Ethernet cables available on the market." hifi.nl | 10-2025
Review International: “Not Magic but a great cable”
"It was explosive!…,with dynamic and volume of low and tight bass [...] The sound quality opened up! and became lively!" LS-8005 AIR on analoguefellowship.com