Final Audio Design Sonorous VIII Dynamic Driver HeadphonesFinal Audio Sonorous VIII headphones achieve an extraordinarily vast sound stage with a vivid instrumental sound. Final Audio's BAM mechanism combined with the 50mm dynamic driver provides the ultimate listening experience in these ultra comfortable over ear headphones. The Sonorous VIII headphones create a vast sound space inside your head by vibrating sound from side to side and with depth so you can discover sounds you never knew were there. These