Hi, I’m new to the club, well actually not realy because I’ve been reading here for a long time already. I’m listening to headphones since a few years now and have recently bought a Schiit Modi 3 and a Vali 2 for my HD650 and HD660, which sounds awesome but I have some troubles with them.
(Not sure where to post this, if there’s a better place than the Vali 2 thread it would be great if a moderator could move it.)
When everything is powered up and I move my fingers lightly over the Vali 2 aluminium chassis there is a slight buzzing or vibration. It’s only there when I move the finger and not when I just place my finger on the chassis. This also happens on the Modi chassis but less strong. It’s just a very slight buzzing or vibration, not an electrical shock. It’s only the aluminim tops, not the rest of the chassis.
I don’t think it’s audible, I don’t hear hum or noises.
The complete setup when the vibration occurs is:
RPi based streamer - coax spdif - modi 3 with 5V wallwart - Vali 2.
I’ve tried a few different wallwart powersupplies and USB loaders and it’s all the same. All regular household electronics, nothing audiophile. I’ve changed the wall outlets and powerstrip and USB cable without any results.
The buzzing problem doesn’t occur when:
-the Modi 3 is fed data and power via a computer USB (USB power and spdif on Modi not connected).
-I use a SBooster 5V linear power supply instead of the switchers.
-I attach my Corda Jazz headamp (connected to power but not switches on) to the preamp output of the Vali 2.
-Modi 3 with Corda Jazz is also fine as well as using the Vali 2 with another DAC. It’s just the combination of the Modi 3 and Vali 2 that causes the issue.
Are there any idea what could cause this and how I could solve the issue?