Discussions

TYPE : Câble numérique
MARQUE : AQVox
MODÈLE - options : coaxial 75 ohms
LONGUEUR: 1m
GARANTIE :non
PREMIÈRE MAIN : oui
PRIX NEUF :165
PRIX DEMANDÉ :90
FACTURE :non
EMBALLAGE D'ORIGINE :non
DOCUMENTATION :non
VISIBLE À : Dijon
LIVRAISON :7 euros par Collissimo

câble coaxial numérique AQvox RCA/RCA
Connecteurs sans soudure, fiches RCA 75 ohms.

Image

extrait du site AQVOX:
HighEnd COAX-75 - COAX - Digitalcable
Handmade in Germany

Audiophile Coaxial-Digitalcable - with enormus resolution and phantastic imaging.
RCA-plug to RCA-plug.
Real 75 Ohm ( wave impedance ) RCA plug of beryllium copper, gold plated.
Cable 75 Ohm, gas-filled dielelectricum, OFC, double copperbraid-screening/return conductor.
Cold-forged connections, no solder, in hermetically sealed connectors.
Extremely musical and precise. Other lengths on request

Length 1,00 m Other lengths on request
see orderform for prices

(versions: RCA to RCA / BNC to BNC / BNC to RCA)

HighEnd COAX-75 - COAX - Digitalcable of audiophile quality
BNC plugs 75 ohms
HighEnd COAX-75 - COAX - Digitalcable of audiophile quality - versions: RCA to RCA / BNC to BNC / BNC to RCA

Contrary to most offered 75-Ohm digital audio cables where the RCA plugs have just 20 - 30-Ohm, the AQVOX COAX cable incorporates not only a 75-Ohm precision cable of finest quality and technology, but also real 75-Ohm RCA plugs. Only this ensures that a consistent 75-Ohm wave impedance troughout the connection line is kept, for which the digitalelectric (COAX) In- and Outputs of the digital audio devices are designed for.

AQVOX cooperates with one of the best manufacturers of high frequency- and digital connectors and can offer COAX cable with RCA plugs in 75-Ohm and best quality.

Here some background regarding the importance of correct wave impedance at Wikipedia
http://en.wikipedia.org/wiki/Coax_cable Chapter: Significance of impedance
or here
http://www.epanorama.net/documents/wiri ... dance.html

The WAVE RESISTANCE is based on frequency and is not measurable with a Ohm-meter!

For example: in the professional broadcasting field or in recording studios, digital cables terminated with plugs or jacks which do not have same wave resistancy as the ccable, are not used at all.

In Practice
Following disadvantages arising from interconnections running out of specifications (eg. 75-Ohm, 110-Ohm etc..):
(this affects digital Audio- as well as digital Videosignals and results from damaged cables or wrong parts)
mainly responsible are signal reflections, standing waves, signal return losses and signal dampening for signal errors/alterings, signal losses/creations and further the sound quality affecting factors, all called jitter. This results in audible losses of details, transients, stage imaging and transparency .

Under monitoring conditions, it is noticeable like this example: if a backround Hi-Hat is whiped with the metalbrush, not the details like the fine metalwires working on the brass are audible, it sounds more undefinded like rustle or noise.