Hi all -
I've got a pair of ZA3 amps from Fosi that I picked up from their kickstarter campaign. Both amps function properly in stereo mode. I'm seeing a strange issue when I use them in mono mode, however. Here is the description:
When I connect either amp to a source (I've tried both RCA and XLR), it works properly (signal comes in from my DAC or from a WiiM mini, and music comes out of my speaker). Again, both amps function properly this way.
However, when I connect both amps to the source (using them as monoblocks), only one of the amps produces sound. The only way to get sound from the second amp (discovered after much trial and error) is to unplug the input cable (again, either RCA or XLR will do this) and then reconnect it WHILE signal is being sent (so, a hot plug). Both amps then run properly until I power the system down. After than, I need to repeat the hot plugging process to get sounds from both speakers.
I've contacted Fosi - but I'm asking here in case anyone has thoughts about what might be happening. Is it possible I've configured something improperly? It's not that complex of a setup, but hey, worth investigating!
Many thanks!
I've got a pair of ZA3 amps from Fosi that I picked up from their kickstarter campaign. Both amps function properly in stereo mode. I'm seeing a strange issue when I use them in mono mode, however. Here is the description:
When I connect either amp to a source (I've tried both RCA and XLR), it works properly (signal comes in from my DAC or from a WiiM mini, and music comes out of my speaker). Again, both amps function properly this way.
However, when I connect both amps to the source (using them as monoblocks), only one of the amps produces sound. The only way to get sound from the second amp (discovered after much trial and error) is to unplug the input cable (again, either RCA or XLR will do this) and then reconnect it WHILE signal is being sent (so, a hot plug). Both amps then run properly until I power the system down. After than, I need to repeat the hot plugging process to get sounds from both speakers.
I've contacted Fosi - but I'm asking here in case anyone has thoughts about what might be happening. Is it possible I've configured something improperly? It's not that complex of a setup, but hey, worth investigating!
Many thanks!