I purchased a P15 direct from PS Audio about 5 months ago. From the beginning I could hear a loud clicking sound from within the unit 3-4 times a day at seemingly random intervals. The clicking seemingly became more frequent over time and is audible from about 20 feet away. The sound happened both when I was listening to music and when all my gear was off (I leave the P15 on all the time). I searched the forums and apparently a few other people had a similar issue. Some people thought it could be a relay opening/closing due to a to a voltage sag, but the clicking happened even when I was not using any other demanding appliances.
I’ve been working with PS Audio support and they have been helpful. After a lot of back and forth and futile troubleshooting, they sent me a replacement oscillator card. I installed the new card without any issues. Over the past week I have been testing out the P15 with my full system plugged into it. As far as I can tell, there has been an improvement in the clicking. Several days I heard no clicking at all with heavy use. On a couple of days, I did hear one click.
This is sort of confusing to me. The fact that there has been improvement means that the prior oscillator card was in some way defective (I made no other changes to the system). But the fact that the problem hasn’t been 100% eliminated means that possibly something else is causing clicking as well? Has anyone seen anything like this? I guess I’m curious to learn what other possible sources of clicking are in the P15… My gear isn’t that exotic and it would be a bummer to learn that something about my gear is causing a malfunction in the P15.
Here’s a list of what’s plugged in to P15:
Mystere pa21 amp
PrimaLuna EVO300 preamp
JL Audio e112 sub
PSA DirectStream DAC
PSA DirectStream Memory Player