Selling my very lightly used Beyerdynamic DT 1990 Pros, with passive filter ($50 added value). Used some to try them out, but these have mostly just stayed in their storage case. They come in their original box, with all original parts/cables/etc included when first purchased. These just didn't end up being my preferred sound signature, they emphasize detail and clarity which is great for someone, but not for my sensitive ears!

Passive Filter is 3.5mm -> 3.5mm + screw-on 6.3mm plug. You can find out more about it here:

• YT Video:
• Website: https://diyaudioheaven.wordpress.com/passive-filters/

Additional photos or information available, just get in touch.