Post by bom13 on Mar 7, 2022 16:47:37 GMT -5
I am hoping someone can shed some light on a situation I am encountering with my new Emotiva BasX A2m amp. This purchase was part of a larger upgrade of equipment to bring my home theater into the 4k & Dolby Atmos environment.
The A2 was purchased specifically to drive my rear surrounds. As such it is located in the rear of the room away from the front cabinet housing all the rest of my gear. In the rear of the A2 are 2 switches. One is for “fixed” vs variable volume. The second is for “auto-on” or “on”. The “auto-on” is signal sensing and designed to bring the amp out of standby when a signal is detected and put it to sleep a brief time after no signal is any longer detected. This is primarily why I selected this particular amp for my surrounds.
I set the amp to “auto-on” and it was performing as advertised. However, the problem is (which I unfortunately didn't realize until later) is that Dolby soundtracks (especially Atmos) do not always have signals "on" and directed to the rear surround’s. As a result, the amp will go into standby during a movie, when no signal is detected, and then start up again (after a brief period of time) from when the signal is once again present. As you might imagine, that’s not optimal for movie watching.
So I decided to then use the 12V “trigger” input to start the amp up at the beginning of a session, and then have the amp go into standby after the trigger was shut off. Another problem then arose. The trigger input worked fine. It would bring the amp out of standby and then bring it into standby when shut down. However…without any incoming audio signal or triggered input, the amp mysteriously comes back on about 10 seconds after the trigger input has been shut down. This isn’t a an intermittent problem. I’ve triggered the amp on and then off many times and the same thing happens. The trigger input is shut down…the amp goes to sleep, and then clicks back on after about 8 - 10 seconds.
I’ve tried to use the 12V trigger to power up the amp with the switch set to both “on” and/or "auto". The trigger work fine and the amp comes on when triggered and goes into standby when the trigger signal is removed.
The problem is the amp always mysteriously comes back on after it has gone into standby after the trigger release.
It is definitely not getting any audio signal because my processor is shut down. In fact the problem occurs whether I have the amp set on “auto” or “on”. And I even made sure the trigger “power” was moved to a separate surge protection strip (which was powered off) to make sure there was no power bleed coming back thru the trigger “input” that might be triggering the amp back on after standby.
Does anybody have any thoughts on why this is happening? Could the A2 be defective? Otherwise it works fine and sounds great driving my Paradigm 100B surrounds. But since there is no dedicated power button…I must go to the back of the room and physically reach behind the amp to hit the switch when I’m done watching. That’s not going to work as a final solution for me.
The A2 was purchased specifically to drive my rear surrounds. As such it is located in the rear of the room away from the front cabinet housing all the rest of my gear. In the rear of the A2 are 2 switches. One is for “fixed” vs variable volume. The second is for “auto-on” or “on”. The “auto-on” is signal sensing and designed to bring the amp out of standby when a signal is detected and put it to sleep a brief time after no signal is any longer detected. This is primarily why I selected this particular amp for my surrounds.
I set the amp to “auto-on” and it was performing as advertised. However, the problem is (which I unfortunately didn't realize until later) is that Dolby soundtracks (especially Atmos) do not always have signals "on" and directed to the rear surround’s. As a result, the amp will go into standby during a movie, when no signal is detected, and then start up again (after a brief period of time) from when the signal is once again present. As you might imagine, that’s not optimal for movie watching.
So I decided to then use the 12V “trigger” input to start the amp up at the beginning of a session, and then have the amp go into standby after the trigger was shut off. Another problem then arose. The trigger input worked fine. It would bring the amp out of standby and then bring it into standby when shut down. However…without any incoming audio signal or triggered input, the amp mysteriously comes back on about 10 seconds after the trigger input has been shut down. This isn’t a an intermittent problem. I’ve triggered the amp on and then off many times and the same thing happens. The trigger input is shut down…the amp goes to sleep, and then clicks back on after about 8 - 10 seconds.
I’ve tried to use the 12V trigger to power up the amp with the switch set to both “on” and/or "auto". The trigger work fine and the amp comes on when triggered and goes into standby when the trigger signal is removed.
The problem is the amp always mysteriously comes back on after it has gone into standby after the trigger release.
It is definitely not getting any audio signal because my processor is shut down. In fact the problem occurs whether I have the amp set on “auto” or “on”. And I even made sure the trigger “power” was moved to a separate surge protection strip (which was powered off) to make sure there was no power bleed coming back thru the trigger “input” that might be triggering the amp back on after standby.
Does anybody have any thoughts on why this is happening? Could the A2 be defective? Otherwise it works fine and sounds great driving my Paradigm 100B surrounds. But since there is no dedicated power button…I must go to the back of the room and physically reach behind the amp to hit the switch when I’m done watching. That’s not going to work as a final solution for me.
