Among all the features of your iPhone, making and receiving calls remains one of its most essential functions — something you likely do every day. Hence, it can be frustrating when you're on a call ...

I have a Sennheiser HD439 plugged into my motherboard's onboard sound, which has a Realtek chipset. Far from an audiophile setup, but good enough for me. The Sennheiser is 32ohm. I have an issue with ...