Focal Sphear Inner-ear Headphones - Discontinued DISCOUNT_EMAIL Its SSRP circuit uses six

Its SSRP circuit uses six 6922 vacuum tubes and six pairs of transmitters in parallel

Each set of headphones is individually tested and serialized to ensure the best performance

Listen to your favorite track on the bus without disturbing your fellow passengers

86") D x 158

The audiophile headphones all others are measured against

Focal Sphear Inner-ear Headphones - Discontinued DISCOUNT_EMAIL Its SSRP circuit uses sixFocal Sphear inner ear analytical headphones Headphone Structure In ear Impedance 16 ohm Sensitivity (SPL 1mW 1KHz) 103 dB Frequency Response 20 Hz 20 Khz Microphone control Omni directional In line mic with controls Compatibility Windows Apple Android Focal Sphear Earphones Earphones Dedicated To Sound And Comfort The Focal Sphear was designed to reproduce an analytical, professional quality, rendering of recordings. These inner ear headphones will