I recently bought used ATH M40x headphones and they work great with my phone and laptop, but when I plug them into my desktop PC either with a USB adapter or directly into the audiojack or motherboard, I get a low frequency hum.
When I use my apple headphones or my old pair of headphones, Sennhieser HD 201, I get a much quieter hum without a USB adapter, but none at all with the USB adapter. Do I need a new sound card?
When I use my apple headphones or my old pair of headphones, Sennhieser HD 201, I get a much quieter hum without a USB adapter, but none at all with the USB adapter. Do I need a new sound card?