Taken from the TGXEar website here: '100ohm bio-fiber diaphragm. Tuned to closely match my personal target of neutrality with the best possible timbre. This highly resolving set is ideal for orchestral work, solo acoustic instrument, vocal jazz and pop music. Comes with very pliable and non...

Taken from the TGXEar website here: 600ohm Beryllium composite dome diaphragm. "This hard to drive earbuds are designed to work best with a desktop amp and tuned to be neutral with high resolution throughout the entire frequency range. It has well formed stage in all direction and excellent...

Driver Setup: Single Dynamic Driver (300ohm Blue PET Polymer Resin Crystal Diaphragm) Sensitivity: 102dB SPL at 1mW Purchase link and contact info: https://www.instagram.com/tgxear/ Serratus is the first flagship produced by @tgx78 under his own TGXEAR brand.