Balanced Headphone Mod - Samson SR850 and Fiio BTR3k

Modding some headphones for balanced audio, primarily to take advantage of the increased power available when using the Fiio's balanced output (more volume).

• #science_technology
• #headphones
• #samson_sr850
• #fiio_btr3k
• #fiio
• #balanced_headphones
• #balanced_audio
• #25mm_headphone