Reply To: Beolab 7.4 hiss with BeoPort and Beolink Active

[Blokkenpiloot]

Thanks, i’ll look into that handbook.

To clarify:
1. I took the powerlink connector on one side of the cable. And desoldered the wire to pin 7, which then hangs loose. So pin 7 didn’t make any contact with the Beolink PC2.

2. there was an deep rumble coming from the speaker

3. i then soldered a small wire to pin 2, next/on to the original ground attached to pin 2.

4. i then touched the other end of that wire to the wire i just soldered off of pin 7. So on the Beolink PC2 side, pin 7 was still disconnected, and on the speaker side, pin 2 and 7 were connected.

5. The deep rumble was gone, but the high volume hiss stays. It’s the same as keeping all 8 pins connected on the cable, and connecting a small wire between pin 2  and 7.

6. When using the same self soldered wire on the Beosystem3, the high hiss is present, but at a way lower volume compared to the Beolink PC2, both with volume on 1 (on zero will be quieter) AND on the Beosystem3 there is no ticking noise once a second, but that’s not audible from a normal distance, this hiss is.