perfect in the second approach

Initial Situation: The Marantz SA 15-S2 to the D / A rescission has only one optical input. 2 devices provide an optical source signal: A Himedia Q5 as Streamer / MP3 / music video player ... and a TechniSat DigiPlus STR 1 Digital Radio.

As already reported by other customers, the first mating attempt was unsuccessful with me, an alternation in comic sounds and silence.

So everything apart again. I have used an existing Toslink Amazon, and two newly appointed by Wentronik (see other review).

The Wentronik go hard in and out. But done without destruction.

When you assemble, I have paid attention to the same orientation the cables - and then it went. However, the system of coupling and cable is sensitive to motion. Shakes you around it, turns out the signal. Likewise, if one clutch / cable sets under "stress", ie bends or the like. Coupling and cables should hang loosely or lie.

Reportedly an input is dominant. Is there connected device is on, nothing to hear from the other. If you switch the device on dominant input from the signal coming through the secondary entrance.

Cable and coupling have no influence on the sound: It ran for several hours over pieces CD, SAT-Radio, Dezzer and Spotify - really great playing on ELAC 403, plastic, space-filling, impressive.

The early problems I had to pull off a star. However, the result is first class, with a total price including cable less than 8 euros. So there can be only 5 star.