31-Mar-2024, 15:39
Fixed it
On another post there is some discussion about using 2 x 220CIs to create a 440 CI but by using the Digital out from the Master to AES on the companion for the link. Using this wiring system, the ground pin on the XLR socket is not connected
The consensus is that it will allow the combo to achieve better sound
On the AES socket (on the companion) there is a switch that alters its state when a XLR socket is inserted. This creates a floating ground on the AES socket. At the same time, the right hand Optical was changed to Trigger.
There was a 12 volt 9mA difference on the ground of the trigger cable. This seems to have caused a protection circuit to prevent the amp starting. Removing this trigger cable and ensuring that an accurate SD card was created for the companion sorted it out
I was somewhat surprised to find a fair bit of dust inside the enclosure, near a heatsink. A quick toot with an industrial blower fixed that
On another post there is some discussion about using 2 x 220CIs to create a 440 CI but by using the Digital out from the Master to AES on the companion for the link. Using this wiring system, the ground pin on the XLR socket is not connected
The consensus is that it will allow the combo to achieve better sound
On the AES socket (on the companion) there is a switch that alters its state when a XLR socket is inserted. This creates a floating ground on the AES socket. At the same time, the right hand Optical was changed to Trigger.
There was a 12 volt 9mA difference on the ground of the trigger cable. This seems to have caused a protection circuit to prevent the amp starting. Removing this trigger cable and ensuring that an accurate SD card was created for the companion sorted it out
I was somewhat surprised to find a fair bit of dust inside the enclosure, near a heatsink. A quick toot with an industrial blower fixed that
Cape Town - South Africa, the home of good wine
Mercury Pi2 & Gentoo, Expert 440PRO CI. 4Tb SSD. ML Electromotion, REL sub. 2 x Dachshunds
Mercury Pi2 & Gentoo, Expert 440PRO CI. 4Tb SSD. ML Electromotion, REL sub. 2 x Dachshunds
