I was not too sure where to post this. 12 volt trigger threads seemed old so I started a new one.
Context: ZP90 hooked to a Rotel power amp. I want Rotel to go on standby when no music is played. I read multiple threads and the consensus seems to be that this type of integration is either costly or not reliable due to extended silence between tracks in some records.
Here is what I did:
Xantech Current sensing block CSM1
Xantech Power supply 781RG
Xantech Audio Sensor Module SMAUD01
Altronix 6062 Multipurpose timer
Total Canadian landed cost $110
I originally installed the Xantech components only. So when music was sensed, a 12 volt trigger would fire to the rotel amp. I quickly found the solution to be unusable as the Xantech timer is only 15 seconds and probably less and therefore the amp would trigger on-off multiple times either at end of a track or during silent parts of classical music.
I then added the Altronix timer. This is where it came all together.
When audio is sensed, Xantech send the 12 volt trigger to the Altronix, The Altronix send the 12 volt trigger to the Amp. I set the Altronix to 60 minutes delay so I need complete silence for 60 minutes before the Altronix releases the 12 volt signal. Now setting of the DIP switches is key here:
You want DIPs
With the DIP switches set that way, it ensure that :
1-Altronix energizes 12 volt as soon as it receives the 12 volt trigger from Xantech. In other words at start of timming cycle
2-Timer is set in minutes not seconds
3-Operating voltage is 12 volt not 24
4-Timing starts after the removal of trigger input. **this one is critical**
DIP switch 1 and 4 are key here: they will ensure that amp Altronix sends a 12 volt trigger as soon as audio is sensed AND DIP 4 plays a timer reset role. When music stops in between track and restarts, this restarts the timer for a new 60 minutes without releasing the 12 volt trigger.
Xantech power supply feeds the Xantech Current sensing block. Xantech current block has + and -. I used those to feed the + and - of Altronix
I plugged a wire between the Xantech current sensing block
"pull up" to the "TRG" of the Altronix
Plugged a wire from Altronix "+" to Altronix "C"
The wire pair going from the Altronix to the Rotel 3.5mm 12volt trigger has the negative to the "-" and the positive to the "NO"
I highly encourage that you try this with a multimeter first, you do not want to fry your amp. Once everything is working well offline then you may integrate