10-Feb-2019, 04:05
A few things to consider.
As @David A says, it is theoretically possible to have slight differences in circuits that makes one amp slightly more sensitive to a Voltage peak and that could theoretically explain why only one amp dropped out for half a second and displayed the fault. I say theoretically because from a practical point of view I think this is a bit too simplistic.
These are the facts; It never happened with my 'old' Od'A or my D200 that I had in my system when my Od'A went for the 1000Pro upgrade. so if there were voltage peaks on my incoming power they never were a problem with the pre-upgraded D's. Secondly, it would have to be a pretty precise voltage peak to land exactly between the two 'sensitivity points' of the two individual amps.
More likely, when Devialet implement the new power supply that can do PLC, the power supplies (or their protection circuits) became more sensitive to voltage changes and not so much voltage peaks. These voltage changes are now enough to trigger the dropout and fault indication. That's one theory.
@AlexS, do you have on / off peak power in your area? If so, your power company sends a signal to your kWh meter twice a day to switch the meter over. Maybe that's the trigger for the dropout. That's another theory.
Shoot holes in my theories at will.
As @David A says, it is theoretically possible to have slight differences in circuits that makes one amp slightly more sensitive to a Voltage peak and that could theoretically explain why only one amp dropped out for half a second and displayed the fault. I say theoretically because from a practical point of view I think this is a bit too simplistic.
These are the facts; It never happened with my 'old' Od'A or my D200 that I had in my system when my Od'A went for the 1000Pro upgrade. so if there were voltage peaks on my incoming power they never were a problem with the pre-upgraded D's. Secondly, it would have to be a pretty precise voltage peak to land exactly between the two 'sensitivity points' of the two individual amps.
More likely, when Devialet implement the new power supply that can do PLC, the power supplies (or their protection circuits) became more sensitive to voltage changes and not so much voltage peaks. These voltage changes are now enough to trigger the dropout and fault indication. That's one theory.
@AlexS, do you have on / off peak power in your area? If so, your power company sends a signal to your kWh meter twice a day to switch the meter over. Maybe that's the trigger for the dropout. That's another theory.
Shoot holes in my theories at will.
Lifetime Roon, Mac mini, int. SSD, ext. HDD, tv as monitor, key board and track pad on bean bag as remote,Devialet 200, Od'A #097, Blue jeans speaker cable,
Dynaudio C1 MkII.
Jim Smith's GBS.
Northern NSW Australia.
Dynaudio C1 MkII.
Jim Smith's GBS.
Northern NSW Australia.
