1. W

    Portable Sound Card for PC/Laptop

    Hello. I bought Superlux HD-681F yesterday. I am delighted from these headphones! They are amazing, especially for their price! This is my first headphones after Ritmix RH-508 Now I see, that PC/Laptop and smartphone are not the best option for these headphones. I was listening them on Fiio X5...
  2. N

    Balanced Audio, Compact (≤3.5mm) Connector

    Which audio player manufacturers are using 3.5mm or smaller connectors and balanced audio (differential signal) their current players? I am declined to purchase from a maker who is not using it in their most recently developed products. If they are not dedicated to balanced audio in their...