I have a problem every time I hit play on Foobar.
Here's my current setup:
Laptop (Foobar) > ISO Regen (USB filter with isolation) > WaveIO (USB to SPDIF) > DAC DAC HS > Nuforce STA200 amp > speakers
There is this loud hash/distorted blast of sound (that lasts for half a second) when I boot the PC with DAC plugged in, or when I first hit play after stopping the music for some time.
The amp is DC coupled.
When I switch to another DAC, I don't have such problem.
Is it because DAC DAC HS is DC coupled as well, and some static or whatever is being passed on to the amp? Or is it Foobar or something else?
How can I prevent this? (I don't want to blow my speakers, it has happened before).
Try using Cherry USB instead of wave IO. There no need to “doctor” the USB interface when using Cherry USB, so the “iso regen” isn’t necessary. We even provide a gold plated USB wire. It’s tested to show no data errors. Clean start/stop with everything we’ve tested except Media Player when switching media mid-track and the volume cranked, and that’s only a brief DC step, inaudible most times. We have confirmed this is Media Player’s fault, but we still use it for demos occasionally since it’s not a big deal.
Here’s the Cherry USB web page:https://www.cherryamp.com/usb-to-spdif-converter
Cherry USB Features:
* Lossless USB to coax SPDIF conversion
* Gold Neutrik RCA output connector* No driver installation necessary
* No power adapter needed
* Up to 384k/32b
* Slim case with standard Cherry Maraschino footprint and Anti-vibration feet
* Electrically Isolated Output to prevent gound loops
* USB 2.0 cable included
It’s also possible Foobar is sending junk data at first even though the interface is active. DAC DAC is designed to have fast start time after receiving valid data/clock.