Sony ECR-880

High-end and x-rare combo of condenser headphones : the ECR-880 is the headset, the ECA-80 is the amplifier.

High-end because the cables' very colors have been optimized as the engineeres found the output sound was changing accordingly - can't make more esoteric that that !

The ECR headset uses a 2µ thick high-polymer film (HPM) arranged in non-symmetrical pentagon shape for less resonance and better frequency response. The 6-core cable is made of pure copper with a stabilized impedance between the six cores.

The ECA, among other features, has 175µ copper patterns on its printed circuit boards, mercury contacts, a DC-DC converter and silver mica caps - and then some.

At 75,000¥, the ECA-80/ECR-880 wasn't that expensive - makes me really wonder why it is such an x-rare rarity.
There are no differences between the ECR-880 and ECR-800 but for the 800 which could be purchased separately while the 880 was the one delivered with the ECA-80.


You may see a real ECR-800 here and its ECR-400 smaller sibling here.